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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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is another mild winter month in Ilhavo, Portugal, with an average temperature ranging between max 13.3°C (55.9°F) and min 7.8°C (46°F). The coldest time of the year is January, with temperatures averaging a high of 13.3°C (55.9°F) and a low of 7.8°C (46°F). Weather in January »
Weather in February
The last month of the winter, February, is another mild month in Ilhavo, Portugal, with an average temperature varying between 7.6°C (45.7°F) and 13.9°C (57°F). With February's advent, Ilhavo sees an average high-temperature of a still refreshing 13.9°C (57°F), subtly shifted from January's 13.3°C (55.9°F). Weather in February »
Weather in March
March, the first month of the spring in Ilhavo, is still a refreshing month, with an average temperature fluctuating between 8.8°C (47.8°F) and 15.9°C (60.6°F). Ilhavo experiences a recorded average high-temperature of a still mild 15.9°C (60.6°F) in March, closely aligned with February's 13.9°C (57°F). Weather in March »
Weather in April
April is an enjoyable spring month in Ilhavo, Portugal, with temperature in the range of an average low of 9.9°C (49.8°F) and an average high of 17.7°C (63.9°F). As Ilhavo transitions into April, the average high-temperature stands at an enjoyable 17.7°C (63.9°F), offering little variation from the preceding month. Weather in April »
Weather in May
May, the last month of the spring in Ilhavo, is a pleasant month, with temperature in the range of an average low of 12.5°C (54.5°F) and an average high of 20.8°C (69.4°F). The beginning of May marks a minor shift in the average high-temperature, moving from April's refreshing 17.7°C (63.9°F) to an agreeable 20.8°C (69.4°F). Weather in May »
Weather in June
The first month of the summer, June, is also an agreeable month in Ilhavo, Portugal, with an average temperature varying between 14.1°C (57.4°F) and 22.4°C (72.3°F). June's arrival brings an average high-temperature of a still pleasant 22.4°C (72.3°F), demonstrating subtle variation from the preceding month. Weather in June »
Weather in July
July in Ilhavo, Portugal, is a moderately hot summer month, with an average temperature varying between 24.5°C (76.1°F) and 15.6°C (60.1°F). Ilhavo's entry into July measures an average high-temperature of a warm 24.5°C (76.1°F), closely parallel to the preceding month. Weather in July »
Weather in August
August, the last month of the summer in Ilhavo, is also a moderately hot month, with an average temperature ranging between max 25.4°C (77.7°F) and min 15.9°C (60.6°F). August tends to be the warmest month, with temperatures averaging a daily high of 25.4°C (77.7°F) and a low of 15.9°C (60.6°F). Weather in August »
Weather in September
September, the first month of the autumn in Ilhavo, is still a warm month, with an average temperature fluctuating between 15.3°C (59.5°F) and 24.5°C (76.1°F). Ilhavo registers an average high-temperature of a still moderately hot 24.5°C (76.1°F) with the arrival of September, showing minor deviation from the preceding month. Weather in September »
Weather in October
October, the same as September, in Ilhavo, Portugal, is an agreeable autumn month, with an average temperature ranging between min 14.2°C (57.6°F) and max 21.5°C (70.7°F). October's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 24.5°C (76.1°F) in September to an agreeable 21.5°C (70.7°F). Weather in October »
Weather in November
November, the last month of the autumn in Ilhavo, is another refreshing month, with an average temperature varying between 15.8°C (60.4°F) and 10.4°C (50.7°F). A subtle decrease in the average high-temperature marks November, falling from October's agreeable 21.5°C (70.7°F) to a refreshing 15.8°C (60.4°F). Weather in November »
Weather in December
The first month of the winter, December, is also a moderate month in Ilhavo, Portugal, with an average temperature varying between 8.6°C (47.5°F) and 14.3°C (57.7°F). Ilhavo's shift into December sets the average high-temperature at a still moderate 14.3°C (57.7°F), a figure that deviates only slightly from November's 15.8°C (60.4°F). Weather in December »
Updated: Feb 2, 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 Ilhavo?
In Ilhavo, January is the month with the lowest recorded average temperatures, measuring a high of 13.3°C (55.9°F) and a low of 7.8°C (46°F).
What is the most humid month in Ilhavo?
The most humid month in Ilhavo is January, with an average relative humidity of 81%.
How much does it rain in Ilhavo?
Throughout the year, there are 125.4 rainfall days, and 619mm (24.37") of precipitation is accumulated.
What is the month with the least sunshine in Ilhavo?
With an average of 5.2h of sunshine, January has the least sunshine of the year in Ilhavo, Portugal.
What is the month with the lowest UV index in Ilhavo?
The months with the lowest UV index in Ilhavo, Portugal, are January, February, November and December, with an average maximum UV index of 3.
When is the highest UV index in Ilhavo?
The months with the highest UV index are May through September, with an average maximum UV index of 5.
When are the longest days in Ilhavo?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What is the driest month in Ilhavo?
The month with the least rainfall in Ilhavo, Portugal, is July, when the rain falls for 4.5 days and typically collects 6mm (0.24") of precipitation.
What month has the most sunshine in Ilhavo?
July has the most sunshine of the year in Ilhavo, Portugal, with an average of 11.3h of sunshine.
What time of the year is the hottest in Ilhavo?
In Ilhavo, August registers the highest temperatures, averaging 25.4°C (77.7°F) at the peak and 15.9°C (60.6°F) at the lowest.
What is the least humid month in Ilhavo?
September is the least humid month in Ilhavo, with an average relative humidity of 70%.
When is Daylight Saving Time (DST) in Ilhavo?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends in Ilhavo, Portugal, and the time zone changes from WEST to WET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from WET to WEST.
What is the rainiest month in Ilhavo?
November is the month with the most rainfall. Rain falls for 14.9 days and accumulates 94mm (3.7") of precipitation.
What is the month with the shortest days in Ilhavo?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Ilhavo, Portugal
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (13.3°C).
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).
Average pressure
Ilhavo, Portugal
- Average pressure in January:
1022mbar - Average pressure in February:
1020mbar - Average pressure in March:
1017.6mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1017mbar
- Average pressure in July:
1016.8mbar - Average pressure in August:
1016.8mbar - Average pressure in September:
1017.1mbar - Average pressure in October:
1016mbar - Average pressure in November:
1017.2mbar - Average pressure in December:
1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed
Ilhavo, Portugal
- Average wind speed in January:
12.3km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
12.5km/h - Average wind speed in April:
11.3km/h - Average wind speed in May:
11.7km/h - Average wind speed in June:
11.4km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
11km/h - Average wind speed in September:
9.8km/h - Average wind speed in October:
10.9km/h - Average wind speed in November:
12.5km/h - Average wind speed in December:
12km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity
Ilhavo, Portugal
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall
Ilhavo, Portugal
The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days
Ilhavo, Portugal
- Average rainfall days in January:
14.5 days - Average rainfall days in February:
11.5 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
10.6 days - Average rainfall days in June:
8.1 days
- Average rainfall days in July:
4.5 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
5.8 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
14.9 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (3.3 days).
Average daylight / Average sunshine
Ilhavo, Portugal
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
6h and 5min - Average sunshine in March:
7h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
10h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days
Ilhavo, Portugal
- Average sunshine days in January:
15 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
18.8 days - Average sunshine days in June:
20.3 days
- Average sunshine days in July:
24.8 days - Average sunshine days in August:
25.8 days - Average sunshine days in September:
22.7 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
12.9 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.9 days).
Average UV index
Ilhavo, Portugal
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Ilhavo, Portugal
The month with the most cloud cover is January (Cloud cover 43).
The months with the least cloud cover are July, August and September (Cloud cover 19).
Average visibility
Ilhavo, Portugal
The months with the highest visibility are February, June and December (10km).
The months with the lowest visibility are January, March, April, May, July, August, September, October and November (9km).
