Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The shift from April to May introduces a subtle increase in the average high-temperature, moving from a refreshing 17.6°C (63.7°F) to an agreeable 21.3°C (70.3°F). Throughout the nights in May, an average low-temperature of 10.3°C (50.5°F) is noted in Semelhe.Humidity
In Semelhe, the average relative humidity in May is 72%.Rainfall
In May, the rain falls for 11.2 days. Throughout May, 47mm (1.85") of precipitation is accumulated. In Semelhe, during the entire year, the rain falls for 139.7 days and collects up to 924mm (36.38") of precipitation.Snowfall
February through December are months without snowfall.Daylight
In May, the average length of the day in Semelhe is 14h and 32min.On the first day of May in Semelhe, Portugal, sunrise is at 06:29 and sunset at 20:31. On the last day of the month, sunrise is at 06:02 and sunset at 21:00 WEST.
Sunshine
In May, the average sunshine in Semelhe is 9.5h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Semelhe in May?
What is the average humidity in May in Semelhe?
How much does it rain in Semelhe in May?
When it does not snow in Semelhe?
What is the average length of the day in May in Semelhe?
When are sunrise and sunset in May in Semelhe?
How long on average sun shines in May in Semelhe?
What is the UV index reading in May in Semelhe?
Average temperature in May
Semelhe, Portugal
- Average high temperature in May: 21.3°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in May: 10.3°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in May
Semelhe, Portugal
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Semelhe, Portugal
- Average wind speed in May: 7.6km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in May
Semelhe, Portugal
- Average humidity in May: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (64%).
Average rainfall in May
Semelhe, Portugal
- Average rainfall in May: 47mm
The wettest month (with the highest rainfall) is November (136mm).
The driest month (with the least rainfall) is July (11mm).
Average rainfall days in May
Semelhe, Portugal
- Average rainfall days in May: 11.2 days
The month with the highest number of rainy days is January (15.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in May
Semelhe, Portugal
- Average snowfall in May: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Semelhe, Portugal
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Semelhe, Portugal
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Semelhe, Portugal
- Average sunshine days in May: 18.4 days
The month with the most sunshine days is August (24.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in May
Semelhe, Portugal
- Average UV index in May: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in May
Semelhe, Portugal
- Average cloud cover in May: 35
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in May
Semelhe, Portugal
- Average visibility in May: 8km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
