May weather forecastJoensuu, Finland
May
Weather in May
May is a time of renewal in Joensuu, as winter finally surrenders to spring. A radiant sun takes over the sky, leading to a considerable increase in temperature. The warmth breathes life into the city, coaxing flowers to bloom and trees to flourish. With a notable increase in sunshine hours averaging 9.8h, days are filled with light and cheer. Far less snowfall dominates the weather patterns, opening up clear skies and stirring up outdoor activities.Temperature
May in Joensuu indicates a noticeable escalation in the average high-temperature, moving up from a cold 4.1°C (39.4°F) in April to a refreshing 13.3°C (55.9°F). Joensuu experiences a nighttime temperature average of 5.2°C (41.4°F) during May.Humidity
The months with the lowest humidity in Joensuu are May and June, with an average relative humidity of 68%.Rainfall
In Joensuu, in May, it is raining for 12.3 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Joensuu, there are 127.5 rainfall days, and 461mm (18.15") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Joensuu, in May, snow falls for 2.3 days, with typically accumulated 39mm (1.54") of snow. In Joensuu, during the entire year, snow falls for 120.8 days and aggregates up to 1101mm (43.35") of snow.Daylight
In May, the average length of the day is 17h and 56min.On the first day of May, sunrise is at 04:41 and sunset at 21:14. On the last day of the month, sunrise is at 03:20 and sunset at 22:36 EEST.
Sunshine
In Joensuu, the average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May in Joensuu is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in May translates into these instructions:
Take precautions - Protection against skin and eye damage is obliged. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Joensuu, Finland
- Average high temperature in May: 13.3°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-6.4°C).
- Average low temperature in May: 5.2°C
The month with the highest average low temperature is July (12.5°C).
The coldest month (with the lowest average low temperature) is January (-10.4°C).
Average pressure in May
Joensuu, Finland
- Average pressure in May: 1014.7mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in May
Joensuu, Finland
- Average wind speed in May: 11.3km/h
The windiest months (with the highest average wind speed) are November and December (13.8km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).
Average humidity in May
Joensuu, Finland
- Average humidity in May: 68%
The month with the highest relative humidity is February (96%).
The months with the lowest relative humidity are May and June (68%).
Average rainfall in May
Joensuu, Finland
- Average rainfall in May: 35mm
The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in May
Joensuu, Finland
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (2 days).
Average snowfall in May
Joensuu, Finland
- Average snowfall in May: 39mm
The months with the highest snowfall are March and December (202mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in May
Joensuu, Finland
- Average snowfall days in May: 2.3 days
The month with the highest number of snowfall days is December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Joensuu, Finland
- Average daylight in May: 17h and 54min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in May: 9h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days in May
Joensuu, Finland
- Average sunshine days in May: 15 days
The month with the most sunshine days is May (15 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in May
Joensuu, Finland
- Average UV index in May: 4
The month with the highest UV index is 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
Joensuu, Finland
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in May
Joensuu, Finland
- Average visibility in May: 9km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).





