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 snowfall in May
- Average snowfall 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
Weather in May
Temperature
As Niinisaari, Finland, transitions into May, the average high-temperature shows a marked escalation, increasing from a frosty 6.3°C (43.3°F) in April to a moderate 15.1°C (59.2°F). Niinisaari observes an average nighttime low-temperature of 6.1°C (43°F) during the month of May.Humidity
With an average relative humidity of 66%, May is the least humid month.Rainfall
In Niinisaari, during May, the rain falls for 14.3 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 150.8 rainfall days, and 525mm (20.67") of precipitation is accumulated.Snowfall
Months with snowfall in Niinisaari, Finland, are January through May, October through December. May is the last month it regularly snows in Niinisaari, Finland. During 1.6 snowfall days, in May, Niinisaari aggregates 28mm (1.1") of snow. Throughout the year, there are 116.2 snowfall days, and 1228mm (48.35") of snow is accumulated.Daylight
In May, the average length of the day is 17h and 35min.On the first day of May in Niinisaari, sunrise is at 04:55 and sunset at 21:13. On the last day of the month, sunrise is at 03:41 and sunset at 22:28 EEST.
Sunshine
In Niinisaari, the average sunshine in May is 9.4h.UV index
In Niinisaari, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the average May temperature in Niinisaari?
What is the least humid month in Niinisaari?
What is the average humidity in May in Niinisaari?
How much does it rain in Niinisaari in May?
What is the last month it snows in Niinisaari?
What is the average length of the day in May in Niinisaari?
What time are sunrise and sunset in May in Niinisaari?
How long on average sun shines in May in Niinisaari?
What is the UV index reading in May in Niinisaari?
Average temperature in May
Niinisaari, Finland
- Average high temperature in May: 15.1°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (-4.7°C).
- Average low temperature in May: 6.1°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).
Average pressure in May
Niinisaari, Finland
- Average pressure in May: 1014.8mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in May
Niinisaari, Finland
- Average wind speed in May: 11.2km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest months (with the lowest average wind speed) are July and August (10.6km/h).
Average humidity in May
Niinisaari, Finland
- Average humidity in May: 66%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in May
Niinisaari, Finland
- Average rainfall in May: 38mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (32mm).
Average rainfall days in May
Niinisaari, Finland
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Niinisaari, Finland
- Average snowfall in May: 28mm
The month with the highest snowfall is January (262mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Niinisaari, Finland
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Niinisaari, Finland
- Average daylight in May: 17h and 4min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in May
Niinisaari, Finland
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is December (4.7 days).
Average UV index in May
Niinisaari, 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
Niinisaari, Finland
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in May
Niinisaari, 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).
Niinisaari, Finland
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