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
São Martinho's average high-temperature in April sits at a still refreshing 17.4°C (63.3°F), showing little difference from the previous month. São Martinho reports an average low-temperature of 15.8°C (60.4°F) during the subtly cooler April nights.Humidity
In April, the average relative humidity in São Martinho is 76%.Rainfall
In April, in São Martinho, the rain falls for 10.5 days. Throughout April, 21mm (0.83") of precipitation is accumulated. Throughout the year, there are 116.4 rainfall days, and 232mm (9.13") of precipitation is accumulated.Daylight
In April, the average length of the day in São Martinho, Portugal, is 13h and 0min.On the first day of April in São Martinho, sunrise is at 07:54 and sunset at 20:28. On the last day of the month, sunrise is at 07:21 and sunset at 20:48 WEST.
Sunshine
In April, the average sunshine is 8.2h.UV index
The months with the lowest UV index in São Martinho, Portugal, are January through June, November and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in April interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in São Martinho?
What is the average humidity in April in São Martinho?
How many days does it rain in April in São Martinho?
How many hours of daylight does São Martinho have in April?
When are sunrise and sunset in April in São Martinho?
How many hours of sunshine does São Martinho have in April?
What is the month with the lowest UV index in São Martinho?
What is the UV index intensity in April in São Martinho?
Average temperature in April
São Martinho, Portugal
- Average high temperature in April: 17.4°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).
- Average low temperature in April: 15.8°C
The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).
Average pressure in April
São Martinho, Portugal
- Average pressure in April: 1018.3mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in April
São Martinho, Portugal
- Average wind speed in April: 20.1km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in April
São Martinho, Portugal
- Average humidity in April: 76%
The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).
Average rainfall in April
São Martinho, Portugal
- Average rainfall in April: 21mm
The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in April
São Martinho, Portugal
- Average rainfall days in April: 10.5 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).
Average daylight in April /
Average sunshine in April
São Martinho, Portugal
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in April
São Martinho, Portugal
- Average sunshine days in April: 15 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in April
São Martinho, Portugal
- Average UV index in April: 5
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in April
São Martinho, Portugal
- Average cloud cover in April: 36
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in April
São Martinho, 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).
