May weather forecastCastelo Branco, Portugal
May weather for Castelo Branco, Portugal: The last month of the spring, May, is a warm month in Castelo Branco, Portugal, with an average temperature ranging between min 11.3°C (52.3°F) and max 23.1°C (73.6°F). In Castelo Branco, during May, the rain falls for 7.9 days and regularly aggregates up to 21mm (0.83") of precipitation.
May
Weather in May
The last month of the spring, May, is a warm month in Castelo Branco, Portugal, with an average temperature ranging between min 11.3°C (52.3°F) and max 23.1°C (73.6°F).Temperature
As May begins, there's a slight increase in the average high-temperature, moving from a refreshing 18.5°C (65.3°F) in April to a warm 23.1°C (73.6°F). In the month of May, Castelo Branco records a consistent average low-temperature of 11.3°C (52.3°F).Humidity
In Castelo Branco, the average relative humidity in May is 63%.Rainfall
In Castelo Branco, during May, the rain falls for 7.9 days and regularly aggregates up to 21mm (0.83") of precipitation. In Castelo Branco, during the entire year, the rain falls for 97 days and collects up to 369mm (14.53") of precipitation.Snowfall
February through December are months without snowfall.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May, sunrise is at 06:29 and sunset at 20:24. On the last day of the month, sunrise is at 06:03 and sunset at 20:51 WEST.
Sunshine
In Castelo Branco, the average sunshine in May is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Castelo Branco. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 6 in May suggests the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Castelo Branco, Portugal
- Average high temperature in May: 23.1°C
The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in May: 11.3°C
The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).
Average pressure in May
Castelo Branco, Portugal
- Average pressure in May: 1015.9mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in May
Castelo Branco, Portugal
- Average wind speed in May: 9.9km/h
The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in May
Castelo Branco, Portugal
- Average humidity in May: 63%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).
Average rainfall in May
Castelo Branco, Portugal
- Average rainfall in May: 21mm
The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in May
Castelo Branco, Portugal
- Average rainfall days in May: 7.9 days
The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).
Average snowfall in May
Castelo Branco, 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
Castelo Branco, Portugal
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and March (0.1 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Castelo Branco, Portugal
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 10h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in May
Castelo Branco, Portugal
- Average sunshine days in May: 20.5 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).
Average UV index in May
Castelo Branco, Portugal
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Castelo Branco, Portugal
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in May
Castelo Branco, Portugal
- Average visibility in May: 9km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
