May weather forecastForssa, Finland
May
Weather in May
The last month of the spring, May, is a refreshing month in Forssa, Finland, with temperature in the range of an average high of 15.3°C (59.5°F) and an average low of 5.8°C (42.4°F).Temperature
The transition to May introduces an increase in the average high-temperature, shifting from a chilly 7.6°C (45.7°F) in April to a mild 15.3°C (59.5°F). In May, in Forssa, the average low-temperature is an icy 5.8°C (42.4°F).Humidity
With an average relative humidity of 68%, May is the least humid month in Forssa.Rainfall
In Forssa, during May, the rain falls for 13.5 days and regularly aggregates up to 30mm (1.18") of precipitation. In Forssa, during the entire year, the rain falls for 128.2 days and collects up to 406mm (15.98") of precipitation.Snowfall
Months with snowfall in Forssa are January through May, October through December. May is the last month it regularly snows in Forssa, Finland. During 0.8 snowfall days, in May, Forssa aggregates 15mm (0.59") of snow. In Forssa, during the entire year, snow falls for 82.5 days and aggregates up to 750mm (29.53") of snow.Daylight
The average length of the day in May is 17h and 24min.On the first day of the month, sunrise is at 05:16 and sunset at 21:28. On the last day of May, in Forssa, sunrise is at 04:06 and sunset at 22:39 EEST.
Sunshine
In May, the average sunshine in Forssa, Finland, is 9.6h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Forssa, Finland
- Average high temperature in May: 15.3°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-4°C).
- Average low temperature in May: 5.8°C
The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-8.1°C).
Average pressure in May
Forssa, Finland
- Average pressure in May: 1014.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in May
Forssa, Finland
- Average wind speed in May: 12.1km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in May
Forssa, Finland
- Average humidity in May: 68%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (68%).
Average rainfall in May
Forssa, Finland
- Average rainfall in May: 30mm
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in May
Forssa, Finland
- Average rainfall days in May: 13.5 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
Forssa, Finland
- Average snowfall in May: 15mm
The month with the highest snowfall is February (165mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Forssa, Finland
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Forssa, Finland
- Average daylight in May: 17h and 24min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in May: 9h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in May
Forssa, Finland
- Average sunshine days in May: 15.1 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in May
Forssa, Finland
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Forssa, Finland
- Average cloud cover in May: 43
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in May
Forssa, Finland
- Average visibility in May: 9km
The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is February (6km).





