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
Weather in April
Temperature
The transition from March to April sees average high-temperatures adjusting to a still refreshing 19.8°C (67.6°F), from a not significantly different 17°C (62.6°F). During the month of April, the nighttime temperature falls to an average of 8.6°C (47.5°F).Humidity
In April, the average relative humidity in Viana do Alentejo is 76%.Rainfall
The month with the most rainfall is April, when the rain falls for 13.4 days and typically aggregates up to 52mm (2.05") of precipitation.Daylight
The average length of the day in April in Viana do Alentejo is 13h and 13min.On the first day of the month, sunrise is at 07:15 and sunset at 19:55. On the last day of April, in Viana do Alentejo, sunrise is at 06:35 and sunset at 20:22 WEST.
Sunshine
In April, the average sunshine is 7.9h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Viana do Alentejo in April?
What is the average humidity in April in Viana do Alentejo?
What is the rainiest month in Viana do Alentejo?
How much does it rain in Viana do Alentejo in April?
What is the average length of the day in April in Viana do Alentejo?
When are sunrise and sunset in April in Viana do Alentejo?
How many hours of sunshine does Viana do Alentejo have in April?
What is the UV index intensity in April in Viana do Alentejo?
Average temperature in April
Viana do Alentejo, Portugal
- Average high temperature in April: 19.8°C
The warmest month (with the highest average high temperature) is August (33.7°C).
The month with the lowest average high temperature is January (13.7°C).
- Average low temperature in April: 8.6°C
The month with the highest average low temperature is August (16.9°C).
The coldest month (with the lowest average low temperature) is February (5.2°C).
Average pressure in April
Viana do Alentejo, Portugal
- Average pressure in April: 1015.4mbar
The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in April
Viana do Alentejo, Portugal
- Average wind speed in April: 11.1km/h
The windiest months (with the highest average wind speed) are February and March (12km/h).
The calmest month (with the lowest average wind speed) is September (9.5km/h).
Average humidity in April
Viana do Alentejo, Portugal
- Average humidity in April: 76%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (49%).
Average rainfall in April
Viana do Alentejo, Portugal
- Average rainfall in April: 52mm
The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in April
Viana do Alentejo, Portugal
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (2 days).
Average daylight in April /
Average sunshine in April
Viana do Alentejo, 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: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in April
Viana do Alentejo, Portugal
- Average sunshine days in April: 15.3 days
The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in April
Viana do Alentejo, Portugal
- Average UV index in April: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Viana do Alentejo, Portugal
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in April
Viana do Alentejo, Portugal
- Average visibility in April: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and April (8km).
Viana do Alentejo, Portugal
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