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Contents
- The climate of Cavan
- The best time to visit Cavan
- The worst time to visit Cavan
- Spring weather in Cavan
- Summer weather in Cavan
- Autumn weather in Cavan
- Winter weather in Cavan
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Cavan
Cavan, a town in Ireland, lies under the scope of the Köppen Climate Classification as a Cfb or Marine West Coast climate with warm summer. Geographically, Cavan is situated in the northeastern part of Ireland and shares its climate characteristics with the region. Year-long weather conditions depict a picture of moderately warm summers and cool winters, accompanied by ample rainfall.
Weather conditions in Cavan present a consistent pattern of change over the course of the year. Average maximum temperatures escalate from 5.9°C (42.6°F) in January to 17.2°C (63°F) in July, then retreat back to 6.4°C (43.5°F) by December. A similar pattern arises in minimum temperatures, swelling from 1.4°C (34.5°F) in January to 9.9°C (49.8°F) in July, and eventually descending to 1.8°C (35.2°F) in December.
Rainfall in Cavan varies throughout the year, with the lowest monthly average being 21mm (0.83") in April and the highest reaching 48mm (1.89") in August. The year unfolds with an average of 15.2 rainfall days in January, peaking at 20.3 days in August, and then slightly diminishing to 15.1 days in December. The number of snowfall days is scarce, with minor occurrences in the early and late months of the year.
July and August witness the maximum cloud cover, hovering around 72% and 73%, respectively. Meanwhile, the highest pressure of 1015.5mb takes place in May. The most daylight hours of approximately 17 are experienced during June. The UV index is fairly constant, with a maximum value of 4 during June, indicating a low potential for skin damage due to exposure to ultraviolet radiation.
Weather conditions in Cavan present a consistent pattern of change over the course of the year. Average maximum temperatures escalate from 5.9°C (42.6°F) in January to 17.2°C (63°F) in July, then retreat back to 6.4°C (43.5°F) by December. A similar pattern arises in minimum temperatures, swelling from 1.4°C (34.5°F) in January to 9.9°C (49.8°F) in July, and eventually descending to 1.8°C (35.2°F) in December.
Rainfall in Cavan varies throughout the year, with the lowest monthly average being 21mm (0.83") in April and the highest reaching 48mm (1.89") in August. The year unfolds with an average of 15.2 rainfall days in January, peaking at 20.3 days in August, and then slightly diminishing to 15.1 days in December. The number of snowfall days is scarce, with minor occurrences in the early and late months of the year.
July and August witness the maximum cloud cover, hovering around 72% and 73%, respectively. Meanwhile, the highest pressure of 1015.5mb takes place in May. The most daylight hours of approximately 17 are experienced during June. The UV index is fairly constant, with a maximum value of 4 during June, indicating a low potential for skin damage due to exposure to ultraviolet radiation.
The best time to visit Cavan
Taking into account temperature, sunshine, and rainfall, the best time to visit Cavan falls between May and September. Average temperatures during these months range from 13.5°C (56.3°F) to 17.2°C (63°F), providing comfortable warmth. Rainfall is considerably less in comparison to other months, offering a better chance of experiencing dry days. The daylight hours are comparatively long, averaging 14.1 hours to 17 hours. Furthermore, the months of May and June tout the highest atmospheric pressure in the year, suggesting more stable weather conditions.
The worst time to visit Cavan
Considering temperatures, daylight hours, and the amount of rainfall, the period from November through February is generally not the best for visiting Cavan. During these months, the average temperatures stoop to between 5.9°C (42.6°F) and 8.2°C (46.8°F), bundled with the shortest daylight hours of 7.5 to 9.8. Moreover, November and December witness the lowest atmospheric pressure throughout the year, indicating less predictable weather conditions.
Spring weather in Cavan
During spring, specifically from March to May, the weather in Cavan gradually warms up. Average high temperatures range from 8.6°C (47.5°F) to 13.5°C (56.3°F), while the average lows vary from 1.8°C (35.2°F) to 5.7°C (42.3°F). Rainfall is relatively moderate with 27mm (1.06") in May representing the highest measure. In terms of sunshine hours, the amount improves from 4.4 in March to 5.8 in May, providing ample daylight for activities.
Summer weather in Cavan
Cavan's summer, from June to August, offers a pleasant climate. The average highest temperature peaks at 17.2°C (63°F) in July, while the lowest averages at 9.9°C (49.8°F) in the same month. Despite being the warmest phase of the year, these temperatures provide a respite from the intense heat often associated with summer. Rainfall in summer ranges from 27mm (1.06") to 48mm (1.89"), with August witnessing the maximum. Simultaneously, daylight hours peak at 17 in June, bestowing the longest days of the year.
Autumn weather in Cavan
Autumn in Cavan follows the pattern of gradually cooling temperatures and increasing rainfall days. Transitioning from September to November, high temperatures retreat from 14.9°C (58.8°F) to 8.2°C (46.8°F), whereas low temperatures drop from 8.3°C (46.9°F) to 3.5°C (38.3°F). Rainfall in this season fluctuates between 22mm (0.87") in September to a peak of 36mm (1.42") in November. Sunlight hours also diminish from 12.7 hours in September to 8.6 hours in November.
Winter weather in Cavan
Winter months in Cavan, extending from December to February, are accompanied by the coolest climate of the year. Average high temperatures register between 5.9°C (42.6°F) to 6.9°C (44.4°F) while average lows fluctuate from 1.4°C (34.5°F) to 1.8°C (35.2°F) during these months. Snowfall is sparse, with an average of 5mm (0.2") in December and 15mm (0.59") in January. Daylight hours are the shortest of the year, with December seeing an average of 7.5 hours. Despite the cool temperatures, winter features the highest relative humidity across the year, indicating the potential for morning dew or fog.
Weather in January
The new year in Cavan, Ireland starts chilly with the average temperature dipping to 1.4°C (34.5°F) and the mercury often peaking at 5.9°C (42.6°F). January is featured by its highest relative humidity of 92% and significant snowfall of 15mm (0.59") over more than a couple of days. Weather in January »
Weather in February
February's weather is consistent with January's, although there is a slight elevation in the average temperature range from 1.3°C (34.3°F) to 6.9°C (44.4°F). Compared to earlier, February has less snowfall 19mm (0.75") and registers the maximum rainfall of 32mm (1.26") over almost half of the days. Weather in February »
Weather in March
With the arrival of March, the weather in Cavan undergoes a transition, hinting at the season of rebirth - Spring. A clear deviation from 1.8°C (35.2°F) to a significant 8.6°C (47.5°F) shows that average temperatures start to rise. Weather in March »
Weather in April
April heralds the spring season in earnest, bringing warmer days with temperatures ranging from 3.2°C (37.8°F) to 11.4°C (52.5°F). A noticeable difference from March is the reduced rainfall, with a quantity of 21mm (0.83") falling on less frequent, rainy days. Weather in April »
Weather in May
In May, comfortable weather sets in, with temperatures between 5.7°C (42.3°F) and 13.5°C (56.3°F), proving it considerably warmer than April. Despite the rise in temperature, showers persist but are evenly dispersed throughout the month with a total rainfall of 27mm (1.06"). Weather in May »
Weather in June
June's weather condition indicates the arrival of summer, with the temperature ranging from 8.2°C (46.8°F) to 16.1°C (61°F). However, there is an increase in rainfall to 40mm (1.57"), making it different from May. June typically receives the most extended daylight hours of the year. Weather in June »
Weather in July
As July rolls in, the peak of summer is reached with temperatures climbing up from 9.9°C (49.8°F) to 17.2°C (63°F). This period witnesses hefty rainfall of 37mm (1.46"), just a bit lower compared to June. The weather in Cavan is mixed, alternating between sunny and rainy days. Weather in July »
Weather in August
August's weather is depicted by the temperature band of 9.8°C (49.6°F) to 16.5°C (61.7°F), carrying forward the trend from July. This period witnesses the highest level of rain in the year at 48mm (1.89"). August is also characterized by prolonged, hot days despite the highest concentration of rainfall. Weather in August »
Weather in September
In September, the temperature varies from 8.3°C (46.9°F) to 14.9°C (58.8°F), exhibiting the start of the fall season, and rainfall decreases substantially to 22mm (0.87"), compared to August. Compared to the previous month, September has a significant drop in temperature, rainfall, and humidity. Weather in September »
Weather in October
October's weather in Cavan presents a typical autumn scene with temperatures falling between 6.3°C (43.3°F) and 12.3°C (54.1°F). An upturn in rainfall with a total of 30mm (1.18") sets it apart from September. In contrast to the previous month, October offers more hours of sunshine despite shorter daylight hours. Weather in October »
Weather in November
The climate in November changes significantly with temperature ranging from 3.5°C (38.3°F) to 8.2°C (46.8°F), paving the way for winter, and the region experiences higher than October rainfall of 36mm (1.42"). The shift from autumn to winter is clear, courtesy of falling temperatures and increased rainfall. Weather in November »
Weather in December
December is the start of the colder season with temperatures falling between 1.8°C (35.2°F) to 6.4°C (43.5°F), notably lower than November's. It experiences similar rainfall amounts to November of 31mm (1.22") but also sees the reappearance of snow at 5mm (0.2"). Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Cavan?
January, with its average high-temperature of 5.9°C (42.6°F) and an average low-temperature of 1.4°C (34.5°F), holds the record as the coldest month in Cavan.
What are the most humid months in Cavan?
The months with the highest humidity are January, November and December, with an average relative humidity of 92%.
How much does it rain in Cavan?
Throughout the year, there are 191.5 rainfall days, and 381mm (15") of precipitation is accumulated.
When does it snow in Cavan?
January through March and December are months with snowfall in Cavan.
How many days does it snow in Cavan?
In Cavan, Ireland, during the entire year, snow falls for 8.9 days and aggregates up to 49mm (1.93") of snow.
What are the months with the least sunshine in Cavan?
The months with the least sunshine in Cavan are January, February and October, with an average of 3.5h of sunshine.
What are the months with the lowest UV index in Cavan?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most in Cavan?
February is the month with the most snowfall in Cavan, Ireland. Snow falls for 3.1 days and accumulates 19mm (0.75") of snow.
What is the least humid month in Cavan?
The least humid month in Cavan is April, with an average relative humidity of 86%.
What is the driest month in Cavan?
April is the month with the least rainfall. Rain falls for 14 days and accumulates 21mm (0.83") of precipitation.
When it does not snow in Cavan?
In Cavan, Ireland, snow does not fall in April through November.
When are the longest days in Cavan?
June has the longest days of the year in Cavan, Ireland, with an average of 17h and 0min of daylight.
What month has the most sunshine in Cavan?
June has the most sunshine of the year, with an average of 6.3h of sunshine.
What is the month with the highest UV index in Cavan?
With an average maximum UV index of 4, June is the month with the highest UV index.
What part of the year is the hottest in Cavan?
July, known for its average high temperature of 17.2°C (63°F) and an average low temperature of 9.9°C (49.8°F), is the warmest month in Cavan.
What is the rainiest month in Cavan?
The month with the most rainfall is August, when the rain falls for 20.3 days and typically aggregates up to 48mm (1.89") of precipitation.
When is Daylight Saving Time (DST) in Cavan?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts in Cavan, Ireland, and the time zone changes from IST to GMT. Daylight Saving Time ends on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to IST.
What is the month with the shortest days in Cavan?
With an average of 7h and 30min of daylight, December has the shortest days of the year in Cavan.
Average temperature
Cavan, Ireland
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.9°C).
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).
Average pressure
Cavan, Ireland
- Average pressure in January:
1010mbar - Average pressure in February:
1009.8mbar - Average pressure in March:
1013.4mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1015.5mbar - Average pressure in June:
1015mbar
- Average pressure in July:
1013.4mbar - Average pressure in August:
1011.9mbar - Average pressure in September:
1014.4mbar - Average pressure in October:
1011.7mbar - Average pressure in November:
1007.3mbar - Average pressure in December:
1009.5mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed
Cavan, Ireland
- Average wind speed in January:
17.8km/h - Average wind speed in February:
17.5km/h - Average wind speed in March:
16.5km/h - Average wind speed in April:
14.1km/h - Average wind speed in May:
14km/h - Average wind speed in June:
12.1km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
12.7km/h - Average wind speed in September:
13.3km/h - Average wind speed in October:
14.3km/h - Average wind speed in November:
15.5km/h - Average wind speed in December:
17.4km/h
The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.9km/h).
Average humidity
Cavan, Ireland
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall
Cavan, Ireland
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days
Cavan, Ireland
- Average rainfall days in January:
15.2 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
14.7 days - Average rainfall days in April:
14 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
17.6 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
20.3 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
14.9 days - Average rainfall days in December:
15.1 days
The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is September (13.3 days).
Average snowfall
Cavan, Ireland
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Cavan, Ireland
- Average snowfall days in January:
2.5 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
1.1 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Cavan, Ireland
- Average daylight in January:
8h and 1min - Average daylight in February:
9h and 5min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 1min - Average daylight in May:
16h and 0min - Average daylight in June:
17h and 0min
- Average daylight in July:
16h and 3min - Average daylight in August:
14h and 5min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 3min - Average daylight in November:
8h and 4min - Average daylight in December:
7h and 3min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 3min - Average sunshine in March:
4h and 2min - Average sunshine in April:
5h and 5min - Average sunshine in May:
5h and 3min - Average sunshine in June:
6h and 2min
- Average sunshine in July:
5h and 2min - Average sunshine in August:
5h and 0min - Average sunshine in September:
4h and 5min - Average sunshine in October:
3h and 3min - Average sunshine in November:
3h and 4min - Average sunshine in December:
3h and 4min
The month with the most sunshine is June (Average sunshine: 6h and 18min).
The months with the least sunshine are January, February and October (Average sunshine: 3h and 30min).
Average sunshine days
Cavan, Ireland
- Average sunshine days in January:
10.9 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
11.2 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
6.9 days - Average sunshine days in August:
5.4 days - Average sunshine days in September:
9.5 days - Average sunshine days in October:
9.5 days - Average sunshine days in November:
10.6 days - Average sunshine days in December:
12 days
The month with the most sunshine days is December (12 days).
The month with the least sunshine days is August (5.4 days).
Average UV index
Cavan, Ireland
The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Cavan, Ireland
The month with the most cloud cover is August (Cloud cover 73).
The month with the least cloud cover is April (Cloud cover 61).
Average visibility
Cavan, Ireland
The month with the highest visibility is March (9km).
The months with the lowest visibility are July, August and September (7km).
