May weather forecastIniö, Finland
May
Weather in May
May, the last month of the spring in Iniö, is a moderate month, with an average temperature varying between 13.2°C (55.8°F) and 6.7°C (44.1°F).Temperature
Iniö's weather in May presents a rise in the average high-temperature, moving from a frosty 6.8°C (44.2°F) in April to a refreshing 13.2°C (55.8°F). In the month of May, Iniö witnesses a consistent average low-temperature of 6.7°C (44.1°F).Humidity
May is the least humid month, with an average relative humidity of 71%.Rainfall
In Iniö, Finland, during May, the rain falls for 12 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, in Iniö, there are 133.7 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
Months with snowfall in Iniö are January through May, October through December. May is the last month it regularly snows in Iniö. During 0.8 snowfall days, in May, Iniö aggregates 13mm (0.51") of snow. In Iniö, during the entire year, snow falls for 60.5 days and aggregates up to 454mm (17.87") of snow.Sea temperature
In Iniö, the average seawater temperature in May is 3.8°C (38.8°F).Note: Within swimming, this is perceived as extraordinarily cold, dangerous, and potentially lethal. If not properly protected by insulated waterproof attire, hypothermia ensues quickly.
Daylight
In Iniö, the average length of the day in May is 17h and 17min.On the first day of the month, sunrise is at 05:28 and sunset at 21:34. On the last day of May, in Iniö, sunrise is at 04:19 and sunset at 22:44 EEST.
Sunshine
The average sunshine in May in Iniö is 10.2h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, an average UV index of 4 transforms into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Iniö, Finland
- Average high temperature in May: 13.2°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in May: 6.7°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in May
Iniö, 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 (1007.6mbar).
Average wind speed in May
Iniö, Finland
- Average wind speed in May: 14.4km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in May
Iniö, Finland
- Average humidity in May: 71%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Iniö, Finland
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in May
Iniö, Finland
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in May
Iniö, Finland
- Average snowfall in May: 13mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Iniö, Finland
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Iniö, Finland
- Average sea temperature in May: 3.8°C
The best month for swimming (with the highest average sea temperature) is August (12.3°C).
The coldest month (with the lowest average sea temperature) is March (-0.2°C).
Average daylight in May /
Average sunshine in May
Iniö, Finland
- Average daylight in May: 17h and 18min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in May: 10h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in May
Iniö, Finland
- Average sunshine days in May: 17.2 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in May
Iniö, Finland
- Average UV index in May: 4
The months with the highest UV index are June, July and August (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
Iniö, Finland
- Average cloud cover in May: 40
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in May
Iniö, Finland
- Average visibility in May: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).





