Expand
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
Weather in January
January, like December, is another refreshing winter month in Arialva, Portugal, with temperature in the range of an average high of 14.9°C (58.8°F) and an average low of 10.2°C (50.4°F). The coldest period is January, when temperatures fluctuate between an average high of 14.9°C (58.8°F) and a low of 10.2°C (50.4°F). Weather in January »
Weather in February
February, the last month of the winter in Arialva, is another mild month, with an average temperature varying between 9.8°C (49.6°F) and 15.3°C (59.5°F). February's onset records a minor alteration in the average high-temperature to a still moderate 15.3°C (59.5°F) from January's 14.9°C (58.8°F). Weather in February »
Weather in March
The first month of the spring, March, is a comfortable month in Arialva, Portugal, with an average temperature fluctuating between 11°C (51.8°F) and 17.3°C (63.1°F). Arialva, Portugal, marks the start of March with an average high-temperature of a comfortable 17.3°C (63.1°F), hinting at a slight fluctuation from February's 15.3°C (59.5°F). Weather in March »
Weather in April
April, the same as March, is another enjoyable spring month in Arialva, Portugal, with an average temperature varying between 12.4°C (54.3°F) and 18.6°C (65.5°F). The weather during April records an average high-temperature of a still enjoyable 18.6°C (65.5°F), closely mirroring the preceding month. Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Arialva, Portugal, with temperature in the range of an average high of 21.8°C (71.2°F) and an average low of 14.8°C (58.6°F). With the start of May, the average high-temperature marginally shifts from April's comfortable 18.6°C (65.5°F) to a pleasant 21.8°C (71.2°F). Weather in May »
Weather in June
June, the first month of the summer in Arialva, is a moderately hot month, with an average temperature ranging between min 16.8°C (62.2°F) and max 23.8°C (74.8°F). With the transition into June, Arialva notes an average high-temperature of a warm 23.8°C (74.8°F), closely resembling May. Weather in June »
Weather in July
July, like June, in Arialva, Portugal, is another warm summer month, with temperature in the range of an average low of 17.9°C (64.2°F) and an average high of 25.9°C (78.6°F). Arialva indicates an average high-temperature of a still moderately hot 25.9°C (78.6°F) in July, showing minor variation from June's 23.8°C (74.8°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Arialva, Portugal, with an average temperature fluctuating between 17.8°C (64°F) and 27.1°C (80.8°F). August, recording an average high temperature of 27.1°C (80.8°F) and a low temperature of 17.8°C (64°F), is Arialva's warmest month. The heat index for August is estimated at 29°C (84.2°F). Weather in August »
Weather in September
September, the first month of the autumn in Arialva, is still a warm month, with an average temperature fluctuating between 25.6°C (78.1°F) and 17.5°C (63.5°F). September reports an average high-temperature of a still moderately hot 25.6°C (78.1°F), slightly varied from August's 27.1°C (80.8°F). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Arialva, Portugal, with an average temperature varying between 22.7°C (72.9°F) and 16.8°C (62.2°F). As Arialva, Portugal, welcomes October, the average high-temperature stabilizes at an agreeable 22.7°C (72.9°F), showing little deviation from September's 25.6°C (78.1°F). Weather in October »
Weather in November
November, the last month of the autumn in Arialva, is also an enjoyable month, with an average temperature ranging between max 17.8°C (64°F) and min 13.1°C (55.6°F). During the shift to November, a minor reduction in average high-temperature is observed, shifting from an agreeable 22.7°C (72.9°F) in October to a comfortable 17.8°C (64°F). Weather in November »
Weather in December
December, the first month of the winter in Arialva, is also a moderate month, with an average temperature ranging between min 10.9°C (51.6°F) and max 15.7°C (60.3°F). Arialva's December showcases an average high-temperature of a mild 15.7°C (60.3°F), hardly distinct from November's 17.8°C (64°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 time of the year is the coldest in Arialva?
January is the coldest month in Arialva, with the temperature often reaching an average high of 14.9°C (58.8°F) and an average low of 10.2°C (50.4°F).
What is the most humid month in Arialva?
With an average relative humidity of 76%, January is the most humid month in Arialva, Portugal.
How much does it rain in Arialva?
In Arialva, Portugal, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.
What is the month with the least sunshine in Arialva?
The month with the least sunshine is January, with an average of 5.4h of sunshine.
When is the lowest UV index in Arialva?
The months with the lowest UV index in Arialva are January through March, November and December, with an average maximum UV index of 4.
What is the month with the highest UV index in Arialva?
May through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the driest month in Arialva?
The months with the least rainfall are June through August Rain falls for 2.2 days and accumulates 1mm (0.04") of rain.
When are the longest days in Arialva?
With an average of 14h and 48min of daylight, June has the longest days of the year in Arialva, Portugal.
What month has the most sunshine in Arialva?
The month with the most sunshine in Arialva is July, with an average of 11.4h of sunshine.
What month is the hottest in Arialva?
Arialva's August weather, with an average high temperature of 27.1°C (80.8°F) and an average low temperature of 17.8°C (64°F), tends to be the warmest of the year.
What is the least humid month in Arialva?
The least humid month in Arialva is August, with an average relative humidity of 68%.
When is Daylight Saving Time (DST) in Arialva?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, 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 Arialva?
The month with the most rainfall is November, when the rain falls for 9.3 days and typically aggregates up to 15mm (0.59") of precipitation.
What is the month with the shortest days in Arialva?
The month with the shortest days in Arialva, Portugal, is December, with an average of 9h and 30min of daylight.
Average temperature
Arialva, Portugal
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure
Arialva, Portugal
- Average pressure in January:
1022.5mbar - Average pressure in February:
1020.4mbar - Average pressure in March:
1017.9mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1017.2mbar
- Average pressure in July:
1016.9mbar - Average pressure in August:
1016.6mbar - Average pressure in September:
1016.9mbar - Average pressure in October:
1016mbar - Average pressure in November:
1017.5mbar - 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 (1015.7mbar).
Average wind speed
Arialva, Portugal
- Average wind speed in January:
16km/h - Average wind speed in February:
16.5km/h - Average wind speed in March:
16.1km/h - Average wind speed in April:
15km/h - Average wind speed in May:
15.4km/h - Average wind speed in June:
15.5km/h
- Average wind speed in July:
16.1km/h - Average wind speed in August:
15km/h - Average wind speed in September:
13.1km/h - Average wind speed in October:
13.3km/h - Average wind speed in November:
15.6km/h - Average wind speed in December:
15km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity
Arialva, Portugal
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Arialva, Portugal
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days
Arialva, Portugal
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
7.4 days - Average rainfall days in May:
3.8 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
1.6 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
3.1 days - Average rainfall days in October:
6.1 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight / Average sunshine
Arialva, Portugal
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
7h and 2min - Average sunshine in March:
8h and 1min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
11h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
7h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
Arialva, Portugal
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
21.8 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
21.1 days - Average sunshine days in May:
24.7 days - Average sunshine days in June:
26.3 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.3 days - Average sunshine days in September:
26.3 days - Average sunshine days in October:
22.2 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index
Arialva, Portugal
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
Arialva, Portugal
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Arialva, Portugal
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Arialva, Portugal
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location