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Contents
- 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 sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another chilly winter month in Portstewart, United Kingdom, with an average temperature fluctuating between 4.3°C (39.7°F) and 7.1°C (44.8°F). January, marked by an average high-temperature of 7.1°C (44.8°F) and a low-temperature of 4.3°C (39.7°F), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Portstewart, United Kingdom, with an average temperature ranging between min 4°C (39.2°F) and max 7.2°C (45°F). The transition into February notes an average high-temperature of a still chilly 7.2°C (45°F), revealing a mild distinction from the 7.1°C (44.8°F) in January. Weather in February »
Weather in March
March, the first month of the spring in Portstewart, is still a chilly month, with an average temperature ranging between min 4.4°C (39.9°F) and max 8.6°C (47.5°F). March brings a marginal elevation to a still frosty 8.6°C (47.5°F) from February's 7.2°C (45°F) in Portstewart's average high-temperatures. Weather in March »
Weather in April
April is a fresh spring month in Portstewart, United Kingdom, with temperature in the range of an average low of 5.7°C (42.3°F) and an average high of 10.3°C (50.5°F). The arrival of April denotes a barely perceptible change in the average high-temperatures to a fresh 10.3°C (50.5°F) from March's 8.6°C (47.5°F). Weather in April »
Weather in May
The last month of the spring, May, is another cool month in Portstewart, United Kingdom, with an average temperature varying between 7.7°C (45.9°F) and 12.5°C (54.5°F). The transition from April to May sees an average high-temperature of a still cool 12.5°C (54.5°F), indicating a minor variance from the prior month. Weather in May »
Weather in June
The first month of the summer, June, is a mild month in Portstewart, United Kingdom, with an average temperature varying between 10°C (50°F) and 14.9°C (58.8°F). With the advent of June, Portstewart's high-temperatures adjust to a moderate 14.9°C (58.8°F), closely aligning with the preceding month. Weather in June »
Weather in July
July is a refreshing summer month in Portstewart, United Kingdom, with an average temperature fluctuating between 16°C (60.8°F) and 11.7°C (53.1°F). July is the month when Portstewart's temperatures reach their peak, with averages of 16°C (60.8°F) and lows of 11.7°C (53.1°F). Weather in July »
Weather in August
The last month of the summer, August, is another refreshing month in Portstewart, United Kingdom, with an average temperature ranging between min 11.8°C (53.2°F) and max 15.9°C (60.6°F). Portstewart marks the onset of August with an average high-temperature of a mild 15.9°C (60.6°F), subtly divergent from July's 16°C (60.8°F). Weather in August »
Weather in September
September, the first month of the autumn in Portstewart, is also a moderate month, with an average temperature fluctuating between 14.7°C (58.5°F) and 10.7°C (51.3°F). September brings an average high-temperature of a still refreshing 14.7°C (58.5°F), nearly identical to the preceding month. Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Portstewart, United Kingdom, with an average temperature varying between 12.5°C (54.5°F) and 9°C (48.2°F). The average high-temperature during October registers at a cool 12.5°C (54.5°F), maintaining a close resemblance to the previous month. Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Portstewart, United Kingdom, with an average temperature fluctuating between 6.4°C (43.5°F) and 9.3°C (48.7°F). November signifies a gentle decline in Portstewart's average high-temperature, easing from a fresh 12.5°C (54.5°F) in October to a chilly 9.3°C (48.7°F). Weather in November »
Weather in December
December, the first month of the winter in Portstewart, is still a chilly month, with temperature in the range of an average low of 4.7°C (40.5°F) and an average high of 7.5°C (45.5°F). As December takes its course, Portstewart's average high-temperature registers at a still frosty 7.5°C (45.5°F), closely aligning with the preceding month. Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Portstewart?
January is the month when Portstewart, United Kingdom, experiences its coldest temperatures, averaging a high of 7.1°C (44.8°F) and a low of 4.3°C (39.7°F).
How many days does it rain in Portstewart?
In Portstewart, during the entire year, the rain falls for 238.3 days and collects up to 632mm (24.88") of precipitation.
When does it snow in Portstewart?
Months with snowfall in Portstewart, United Kingdom, are January through April, November and December.
How many days does it snow in Portstewart?
Throughout the year, there are 8 snowfall days, and 47mm (1.85") of snow is accumulated.
What is the month with the least sunshine in Portstewart?
January has the least sunshine of the year in Portstewart, with an average of 3.8h of sunshine.
What are the months with the lowest UV index in Portstewart?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Portstewart, United Kingdom.
What is the snowiest month in Portstewart?
The month with the most snowfall in Portstewart, United Kingdom, is February, when snow falls for 2.5 days and typically aggregates up to 16mm (0.63") of snow.
When is the sea coldest in Portstewart?
The month with the coldest seawater is March, with an average sea temperature of 8.3°C (46.9°F).
What is the least humid month in Portstewart?
The least humid month in Portstewart is April, with an average relative humidity of 81%.
What is the driest month in Portstewart?
April is the month with the least rainfall in Portstewart. Rain falls for 16.8 days and accumulates 35mm (1.38") of precipitation.
When it does not snow in Portstewart?
In Portstewart, United Kingdom, snow does not fall in May through October.
What are the months with the highest UV index in Portstewart?
May, June, August and September, with an average maximum UV index of 4, are months with the highest UV index.
When are the longest days in Portstewart?
June has the longest days of the year, with an average of 17h and 18min of daylight.
What month has the most sunshine in Portstewart?
With an average of 8h of sunshine, June has the most sunshine of the year.
What time of the year is the hottest in Portstewart?
July registers as the month with the average highest temperatures in Portstewart, reaching 16°C (60.8°F) at its peak and 11.7°C (53.1°F) at the lowest.
What is the most humid month in Portstewart?
July and August, with an average relative humidity of 86%, are most humid months.
What is the rainiest month in Portstewart?
The wettest months are July and August, with an average 74mm (2.91") of rainfall.
What is the month with the warmest sea water in Portstewart?
The month with the warmest seawater in Portstewart is August, with an average sea temperature of 14.3°C (57.7°F).
When is Daylight Saving Time (DST) in Portstewart?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Portstewart, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
What is the month with the shortest days in Portstewart?
The month with the shortest days in Portstewart, United Kingdom, is December, with an average of 7h and 12min of daylight.
Average temperature
Portstewart, United Kingdom
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (7.1°C).
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure
Portstewart, United Kingdom
- Average pressure in January:
1008.9mbar - Average pressure in February:
1008.9mbar - Average pressure in March:
1012.6mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1015.2mbar - Average pressure in June:
1014.7mbar
- Average pressure in July:
1012.8mbar - Average pressure in August:
1011.2mbar - Average pressure in September:
1013.5mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1006.6mbar - Average pressure in December:
1008.2mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed
Portstewart, United Kingdom
- Average wind speed in January:
27.5km/h - Average wind speed in February:
26km/h - Average wind speed in March:
24km/h - Average wind speed in April:
20.2km/h - Average wind speed in May:
19.5km/h - Average wind speed in June:
16.8km/h
- Average wind speed in July:
16.7km/h - Average wind speed in August:
18.4km/h - Average wind speed in September:
21.1km/h - Average wind speed in October:
23.2km/h - Average wind speed in November:
24.8km/h - Average wind speed in December:
27km/h
The windiest month (with the highest average wind speed) is January (27.5km/h).
The calmest month (with the lowest average wind speed) is July (16.7km/h).
Average humidity
Portstewart, United Kingdom
The months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall
Portstewart, United Kingdom
The wettest months (with the highest rainfall) are July and August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days
Portstewart, United Kingdom
- Average rainfall days in January:
20.3 days - Average rainfall days in February:
17.2 days - Average rainfall days in March:
18.9 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
18.6 days - Average rainfall days in June:
20.6 days
- Average rainfall days in July:
22.6 days - Average rainfall days in August:
24 days - Average rainfall days in September:
19.6 days - Average rainfall days in October:
19.1 days - Average rainfall days in November:
19.7 days - Average rainfall days in December:
20.9 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is April (16.8 days).
Average snowfall
Portstewart, United Kingdom
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Portstewart, United Kingdom
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
2.5 days - Average snowfall days in March:
1.3 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:
0.4 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Portstewart, United Kingdom
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight / Average sunshine
Portstewart, United Kingdom
- Average daylight in January:
7h and 5min - Average daylight in February:
9h and 4min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 1min - Average daylight in May:
16h and 1min - Average daylight in June:
17h and 2min
- Average daylight in July:
16h and 5min - 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 2min - Average daylight in December:
7h and 1min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 0min - Average sunshine in April:
7h and 2min - Average sunshine in May:
7h and 1min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
7h and 0min - Average sunshine in August:
6h and 3min - Average sunshine in September:
6h and 0min - Average sunshine in October:
3h and 5min - Average sunshine in November:
3h and 5min - Average sunshine in December:
4h and 0min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Portstewart, United Kingdom
- Average sunshine days in January:
7.5 days - Average sunshine days in February:
6.3 days - Average sunshine days in March:
8.3 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
8.3 days - Average sunshine days in June:
6.1 days
- Average sunshine days in July:
5.3 days - Average sunshine days in August:
4.2 days - Average sunshine days in September:
6.3 days - Average sunshine days in October:
8.3 days - Average sunshine days in November:
6.4 days - Average sunshine days in December:
6.2 days
The month with the most sunshine days is April (9.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index
Portstewart, United Kingdom
The months with the highest UV index are May, June, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Portstewart, United Kingdom
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility
Portstewart, United Kingdom
The month with the highest visibility is November (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
Portstewart, United Kingdom
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