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 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
With the onset of May, the average high-temperature subtly transitions from a refreshing 18.7°C (65.7°F) in April to a pleasant 22°C (71.6°F). Throughout the month of May, Castro Marim witnesses an average low-temperature of 15.8°C (60.4°F).Humidity
In Castro Marim, the average relative humidity in May is 67%.Rainfall
In May, in Castro Marim, the rain falls for 4.2 days. Throughout May, 8mm (0.31") of precipitation is accumulated. In Castro Marim, during the entire year, the rain falls for 51.4 days and collects up to 90mm (3.54") of precipitation.Daylight
The average length of the day in May is 14h and 11min.On the first day of May in Castro Marim, Portugal, sunrise is at 06:34 and sunset at 20:19. On the last day of the month, sunrise is at 06:11 and sunset at 20:43 WEST.
Sunshine
In May, the average sunshine in Castro Marim is 11.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. 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 is the usual temperature for Castro Marim in May?
What is the average humidity in May in Castro Marim?
How much does it rain in Castro Marim in May?
How many hours of daylight does Castro Marim have in May?
When are sunrise and sunset in May in Castro Marim?
How long on average sun shines in May in Castro Marim?
What are the months with the highest UV index in Castro Marim?
What is the UV index reading in May in Castro Marim?
Average temperature in May
Castro Marim, Portugal
- Average high temperature in May: 22°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in May: 15.8°C
The month with the highest average low temperature is August (20.4°C).
The coldest month (with the lowest average low temperature) is February (10.3°C).
Average pressure in May
Castro Marim, Portugal
- Average pressure in May: 1015.7mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The months with the lowest atmospheric pressure are April and August (1015.3mbar).
Average wind speed in May
Castro Marim, Portugal
- Average wind speed in May: 15km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest month (with the lowest average wind speed) is September (12.2km/h).
Average humidity in May
Castro Marim, Portugal
- Average humidity in May: 67%
The month with the highest relative humidity is January (74%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall in May
Castro Marim, Portugal
- Average rainfall in May: 8mm
The wettest months (with the highest rainfall) are April and November (15mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in May
Castro Marim, Portugal
- Average rainfall days in May: 4.2 days
The month with the highest number of rainy days is April (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in May /
Average sunshine in May
Castro Marim, Portugal
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in May
Castro Marim, Portugal
- Average sunshine days in May: 25.1 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is April (20 days).
Average UV index in May
Castro Marim, Portugal
- Average UV index in May: 6
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 May
Castro Marim, Portugal
- Average cloud cover in May: 18
The months with the most cloud cover are January and April (Cloud cover 29).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Castro Marim, Portugal
- Average visibility in May: 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).
