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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Posio, Finland, with an average temperature varying between -8.4°C (16.9°F) and -13.8°C (7.2°F). January is the month when Posio sees the lowest average temperatures, with a high of -8.4°C (16.9°F) and a low of -13.8°C (7.2°F). Weather in January »
Weather in February
February, the last month of the winter in Posio, is another freezing cold month, with an average temperature fluctuating between -12.1°C (10.2°F) and -7.2°C (19°F). The average high-temperature is a still freezing cold -7.2°C (19°F) in February, hardly different from the -8.4°C (16.9°F) recorded in January. Weather in February »
Weather in March
The first month of the spring, March, is also a subzero cold month in Posio, Finland, with an average temperature varying between -3.5°C (25.7°F) and -9.9°C (14.2°F). As February gives way to March, the average high-temperature displays a slight ascent, adjusting from -7.2°C (19°F) to a still freezing cold -3.5°C (25.7°F). Weather in March »
Weather in April
April in Posio, Finland, is an icy spring month, with an average temperature fluctuating between -4.4°C (24.1°F) and 1.4°C (34.5°F). The shift into April brings a slight increase in the average high-temperature, moving from a subzero cold -3.5°C (25.7°F) in March to a wintry 1.4°C (34.5°F). Weather in April »
Weather in May
The last month of the spring, May, is a chilly month in Posio, Finland, with temperature in the range of an average high of 9.9°C (49.8°F) and an average low of 2.3°C (36.1°F). Posio's transition into May is marked by a distinct rise in the average high-temperature, advancing from an icy 1.4°C (34.5°F) in April to a chilly 9.9°C (49.8°F). Weather in May »
Weather in June
June, the first month of the summer in Posio, is a mild month, with an average temperature ranging between max 15.1°C (59.2°F) and min 6.8°C (44.2°F). Posio's June weather shows an increase in high-temperatures, moving from May's chilly 9.9°C (49.8°F) to a refreshing 15.1°C (59.2°F). Weather in June »
Weather in July
July in Posio, Finland, is a comfortable summer month, with an average temperature varying between 10.3°C (50.5°F) and 19.2°C (66.6°F). July, with an average high of 19.2°C (66.6°F) and a low of 10.3°C (50.5°F), signifies the warmest month of the year. Weather in July »
Weather in August
August, the last month of the summer in Posio, is also an enjoyable month, with an average temperature ranging between max 16.6°C (61.9°F) and min 8.4°C (47.1°F). Posio's August showcases an average high-temperature of a still refreshing 16.6°C (61.9°F), hardly distinct from July's 19.2°C (66.6°F). Weather in August »
Weather in September
September, the first month of the autumn in Posio, is still a cool month, with an average temperature varying between 4.8°C (40.6°F) and 10.7°C (51.3°F). As September begins, there is a decrease in the average high-temperature, falling from a comfortable 16.6°C (61.9°F) in August to a cool 10.7°C (51.3°F). Weather in September »
Weather in October
October, like September, in Posio, Finland, is an icy autumn month, with an average temperature fluctuating between -1.5°C (29.3°F) and 2.5°C (36.5°F). The average high-temperature exhibits a considerable decrease in October, dropping from a cool 10.7°C (51.3°F) in September to a cold 2.5°C (36.5°F). Weather in October »
Weather in November
The last month of the autumn, November, is another freezing cold month in Posio, Finland, with an average temperature fluctuating between -5°C (23°F) and -1.7°C (28.9°F). November brings a minor shift in the average high-temperature, adjusting from a cold 2.5°C (36.5°F) in October to a subzero cold -1.7°C (28.9°F). Weather in November »
Weather in December
December, the first month of the winter in Posio, is still a freezing cold month, with an average temperature fluctuating between -9.5°C (14.9°F) and -5.6°C (21.9°F). During the shift to December, Posio records a mild decrease in average high-temperature, moving from -1.7°C (28.9°F) in November to a still subzero cold -5.6°C (21.9°F). Weather in December »
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Posio?
Posio's coldest temperatures are experienced in January, with average high temperatures of -8.4°C (16.9°F) and lows of -13.8°C (7.2°F).
What is the most humid month in Posio?
The most humid month in Posio, Finland, is January, with an average relative humidity of 97%.
What is the driest month in Posio?
January and April are months with the least rain in Posio, Finland, when the rain falls for 1.7 days and typically aggregates up to 31mm (1.22") of rain.
How much does it rain in Posio?
In Posio, Finland, during the entire year, the rain falls for 117.1 days and collects up to 485mm (19.09") of precipitation.
When does it snow in Posio?
January through June, September through December are months with snowfall.
How many days does it snow in Posio?
In Posio, Finland, during the entire year, snow falls for 154.7 days and aggregates up to 1613mm (63.5") of snow.
When is the lowest UV index in Posio?
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the least humid month in Posio?
With an average relative humidity of 70%, June is the least humid month.
What are the months with the highest UV index in Posio?
June through August, with an average maximum UV index of 4, are months with the highest UV index in Posio, Finland.
What month is the hottest in Posio?
Posio records the warmest temperatures in July, averaging a high of 19.2°C (66.6°F) and a low of 10.3°C (50.5°F).
What is the rainiest month in Posio?
July is the month with the most rainfall in Posio. Rain falls for 18 days and accumulates 57mm (2.24") of precipitation.
When it does not snow in Posio?
July and August are months without snowfall in Posio.
When are the longest days in Posio?
The month with the longest days in Posio is July, with an average of 20h and 18min of daylight.
What month has the most sunshine in Posio?
July has the most sunshine of the year, with an average of 10.6h of sunshine.
When is Daylight Saving Time (DST) in Posio?
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
What is the snowiest month in Posio?
The month with the most snowfall is December, when snow falls for 24.5 days and typically aggregates up to 283mm (11.14") of snow.
What is the month with the shortest days in Posio?
The month with the shortest days is December, with an average of 3h and 6min of daylight.
What is the month with the least sunshine in Posio?
With an average of 0.7h of sunshine, December has the least sunshine of the year in Posio.
Average temperature
Posio, Finland
The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is January (-8.4°C).
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-13.8°C).
Average pressure
Posio, Finland
- Average pressure in January:
1010.3mbar - Average pressure in February:
1010.7mbar - Average pressure in March:
1007.9mbar - Average pressure in April:
1011.4mbar - Average pressure in May:
1014.4mbar - Average pressure in June:
1010.9mbar
- Average pressure in July:
1011mbar - Average pressure in August:
1011.8mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1006.1mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1006.1mbar).
Average wind speed
Posio, Finland
- Average wind speed in January:
12.6km/h - Average wind speed in February:
12.6km/h - Average wind speed in March:
12.7km/h - Average wind speed in April:
11.4km/h - Average wind speed in May:
12.1km/h - Average wind speed in June:
11.8km/h
- Average wind speed in July:
10.5km/h - Average wind speed in August:
10.6km/h - Average wind speed in September:
11.7km/h - Average wind speed in October:
11.8km/h - Average wind speed in November:
12.9km/h - Average wind speed in December:
12.7km/h
The windiest month (with the highest average wind speed) is November (12.9km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity
Posio, Finland
The month with the highest relative humidity is January (97%).
The month with the lowest relative humidity is June (70%).
Average rainfall
Posio, Finland
The wettest month (with the highest rainfall) is July (57mm).
The driest months (with the least rainfall) are January and April (31mm).
Average rainfall days
Posio, Finland
- Average rainfall days in January:
1.7 days - Average rainfall days in February:
1.3 days - Average rainfall days in March:
3.3 days - Average rainfall days in April:
8 days - Average rainfall days in May:
13.6 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
18.4 days - Average rainfall days in September:
15.4 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
2.8 days
The month with the highest number of rainy days is August (18.4 days).
The month with the least rainy days is February (1.3 days).
Average snowfall
Posio, Finland
- Average snowfall in January:
227mm - Average snowfall in February:
225mm - Average snowfall in March:
238mm - Average snowfall in April:
175mm - Average snowfall in May:
84mm - Average snowfall in June:
8mm
The month with the highest snowfall is December (283mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Posio, Finland
- Average snowfall days in January:
22.8 days - Average snowfall days in February:
21.2 days - Average snowfall days in March:
22 days - Average snowfall days in April:
20.2 days - Average snowfall days in May:
6.8 days - Average snowfall days in June:
1.3 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.1 days - Average snowfall days in September:
1.5 days - Average snowfall days in October:
12.8 days - Average snowfall days in November:
21.5 days - Average snowfall days in December:
24.5 days
The month with the highest number of snowfall days is December (24.5 days).
The month with the least snowfall days is July (0 days).
Average daylight / Average sunshine
Posio, Finland
- Average daylight in January:
4h and 4min - Average daylight in February:
8h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
15h and 3min - Average daylight in May:
19h and 2min - Average daylight in June:
7h and 3min
- Average daylight in July:
20h and 2min - Average daylight in August:
16h and 5min - Average daylight in September:
13h and 1min - Average daylight in October:
9h and 3min - Average daylight in November:
5h and 5min - Average daylight in December:
3h and 1min
The month with the longest days is July (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 3h and 6min).
- Average sunshine in January:
0h and 5min - Average sunshine in February:
1h and 3min - Average sunshine in March:
2h and 4min - Average sunshine in April:
3h and 2min - Average sunshine in May:
8h and 1min - Average sunshine in June:
4h and 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
8h and 1min - Average sunshine in September:
5h and 1min - Average sunshine in October:
2h and 4min - Average sunshine in November:
1h and 2min - Average sunshine in December:
0h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days
Posio, Finland
- Average sunshine days in January:
8.8 days - Average sunshine days in February:
8.1 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
5.3 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
10.1 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
10.1 days - Average sunshine days in November:
6.6 days - Average sunshine days in December:
6.3 days
The month with the most sunshine days is July (11.6 days).
The month with the least sunshine days is April (5.3 days).
Average UV index
Posio, Finland
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover
Posio, Finland
The month with the most cloud cover is February (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 51).
Average visibility
Posio, Finland
The months with the highest visibility are June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).
