Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
The weather during April records an average high-temperature of a still enjoyable 18.6°C (65.5°F), closely mirroring the preceding month. In Arialva, an average temperature of 12.4°C (54.3°F) is noted during April nights.Humidity
The average relative humidity in April is 73%.Rainfall
In Arialva, during April, the rain falls for 7.4 days and regularly aggregates up to 9mm (0.35") of precipitation. In Arialva, Portugal, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.Daylight
In April, the average length of the day in Arialva, Portugal, is 13h and 14min.On the first day of the month, sunrise is at 07:20 and sunset at 20:00. On the last day of April, in Arialva, Portugal, sunrise is at 06:39 and sunset at 20:28 WEST.
Sunshine
In Arialva, the average sunshine in April is 8.8h.UV index
In Arialva, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Arialva?
What is the average humidity in April in Arialva?
How many days does it rain in April in Arialva?
What is the average length of the day in April in Arialva?
When are sunrise and sunset in April in Arialva?
How many hours of sunshine does Arialva have in April?
How high is the UV index in April in Arialva?
Average temperature in April
Arialva, Portugal
- Average high temperature in April: 18.6°C
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).
- Average low temperature in April: 12.4°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 in April
Arialva, Portugal
- Average pressure in April: 1015.7mbar
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 in April
Arialva, Portugal
- Average wind speed in April: 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 in April
Arialva, Portugal
- Average humidity in April: 73%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall in April
Arialva, Portugal
- Average rainfall in April: 9mm
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 in April
Arialva, Portugal
- Average rainfall days in April: 7.4 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 in April /
Average sunshine in April
Arialva, Portugal
- Average daylight in April: 13h and 1min
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 April: 8h 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 in April
Arialva, Portugal
- Average sunshine days in April: 21.1 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 in April
Arialva, Portugal
- Average UV index in April: 5
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 in April
Arialva, Portugal
- Average cloud cover in April: 34
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 in April
Arialva, Portugal
- Average visibility in April: 10km
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).
