May weather forecastSines, Portugal
May weather for Sines, Portugal: The last month of the spring, May, is a pleasant month in Sines, Portugal, with an average temperature fluctuating between 20.1°C (68.2°F) and 15.4°C (59.7°F). On the last day of the month, in Sines, sunrise is at 06:14 and sunset at 20:51 WEST.
May
Weather in May
The last month of the spring, May, is a pleasant month in Sines, Portugal, with an average temperature fluctuating between 20.1°C (68.2°F) and 15.4°C (59.7°F).Temperature
The beginning of May reveals an average high-temperature of an agreeable 20.1°C (68.2°F), showing minimal deviation from the previous month. Sines in May experiences a minor decline in temperature, with an average low of 15.4°C (59.7°F) at night.Humidity
The average relative humidity in May in Sines, Portugal, is 73%.Rainfall
In May, in Sines, the rain falls for 6.4 days. Throughout May, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 94.6 rainfall days, and 327mm (12.87") of precipitation is accumulated.Sea temperature
In Sines, Portugal, in May, the average water temperature is 17.9°C (64.2°F).Note: Most people find swimming in 17.9°C (64.2°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
The average length of the day in May in Sines, Portugal, is 14h and 14min.On the first day of May, sunrise is at 06:38 and sunset at 20:26. On the last day of the month, sunrise is at 06:14 and sunset at 20:51 WEST.
Sunshine
In May, the average sunshine in Sines is 10.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Guard yourself - Avoiding sunburn is suggested. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sines, Portugal
- Average high temperature in May: 20.1°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is February (14.8°C).
- Average low temperature in May: 15.4°C
The months with the highest average low temperature are August and September (18.8°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).
Average pressure in May
Sines, Portugal
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in May
Sines, Portugal
- Average wind speed in May: 17.5km/h
The windiest month (with the highest average wind speed) is February (19.4km/h).
The calmest month (with the lowest average wind speed) is September (15.1km/h).
Average humidity in May
Sines, Portugal
- Average humidity in May: 73%
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Sines, Portugal
- Average rainfall in May: 20mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Sines, Portugal
- Average rainfall days in May: 6.4 days
The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (1.1 days).
Average sea temperature in May
Sines, Portugal
- Average sea temperature in May: 17.9°C
The best month for swimming (with the highest average sea temperature) is October (20.5°C).
The coldest month (with the lowest average sea temperature) is March (15.6°C).
Average daylight in May /
Average sunshine in May
Sines, Portugal
- Average daylight in May: 14h and 12min
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 36min).
- Average sunshine in May: 10h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in May
Sines, Portugal
- Average sunshine days in May: 23 days
The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in May
Sines, Portugal
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in May
Sines, Portugal
- Average cloud cover in May: 22
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in May
Sines, 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).
