Climate and monthly weather forecastSionkylä, Finland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Sionkylä, Finland, is another subzero cold winter month, with an average temperature varying between -8.4°C (16.9°F) and -4.3°C (24.3°F). The month of January sees the lowest average temperatures, reaching -4.3°C (24.3°F) at the peak and -8.4°C (16.9°F) at the low. Weather in January »Weather in February
February, the last month of the winter in Sionkylä, is another freezing cold month, with an average temperature fluctuating between -3.1°C (26.4°F) and -8.1°C (17.4°F). The advent of February reveals an average high-temperature of a still freezing cold -3.1°C (26.4°F), showing minimal difference from the prior month. Weather in February »Weather in March
March, the first month of the spring in Sionkylä, is a wintry month, with an average temperature ranging between max 0.3°C (32.5°F) and min -5.4°C (22.3°F). The beginning of March signals a minor rise in the average high-temperature, moving from a subzero cold -3.1°C (26.4°F) in February to an icy 0.3°C (32.5°F). Weather in March »Weather in April
April is a chilly spring month in Sionkylä, Finland, with an average temperature ranging between max 7.1°C (44.8°F) and min 0°C (32°F). An escalation in the average high-temperature is seen with the onset of April, moving from a cold 0.3°C (32.5°F) in March to a frosty 7.1°C (44.8°F). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Sionkylä, Finland, with temperature in the range of an average low of 5.8°C (42.4°F) and an average high of 15.5°C (59.9°F). A distinct shift in the average high-temperature is signaled in May, moving up from a frosty 7.1°C (44.8°F) in April to a mild 15.5°C (59.9°F). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Sionkylä, Finland, with temperature in the range of an average high of 18.8°C (65.8°F) and an average low of 9.3°C (48.7°F). Observing a minor shift, the average high-temperature during June adjusts from May's 15.5°C (59.9°F) to a still refreshing 18.8°C (65.8°F). Weather in June »Weather in July
July is an agreeable summer month in Sionkylä, Finland, with temperature in the range of an average low of 12.1°C (53.8°F) and an average high of 21.8°C (71.2°F). Sionkylä experiences its highest temperatures in July, with an average peak of 21.8°C (71.2°F) and a low of 12.1°C (53.8°F). Weather in July »Weather in August
The last month of the summer, August, is another pleasant month in Sionkylä, Finland, with an average temperature ranging between min 11°C (51.8°F) and max 20.4°C (68.7°F). August's presence marks an average high-temperature of a still agreeable 20.4°C (68.7°F), subtly varied from July's 21.8°C (71.2°F). Weather in August »Weather in September
September, the first month of the autumn in Sionkylä, is still a refreshing month, with an average temperature fluctuating between 14.8°C (58.6°F) and 7.6°C (45.7°F). Sionkylä's progression into September involves a drop in the average high-temperature, receding from a pleasant 20.4°C (68.7°F) in August to a refreshing 14.8°C (58.6°F). Weather in September »Weather in October
October, the same as September, in Sionkylä, Finland, is a frosty autumn month, with an average temperature fluctuating between 2.3°C (36.1°F) and 6.9°C (44.4°F). Sionkylä's weather in October involves a decrease in the average high-temperature, moving down from September's refreshing 14.8°C (58.6°F) to a frosty 6.9°C (44.4°F). Weather in October »Weather in November
November, the last month of the autumn in Sionkylä, is also an icy month, with an average temperature fluctuating between -0.6°C (30.9°F) and 2.5°C (36.5°F). In Sionkylä, the beginning of November is marked by a marginally lowered average high-temperature, shifting from October's frosty 6.9°C (44.4°F) to an icy 2.5°C (36.5°F). Weather in November »Weather in December
December, the first month of the winter in Sionkylä, is still a freezing cold month, with temperature in the range of an average low of -4.8°C (23.4°F) and an average high of -1.7°C (28.9°F). The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's wintry 2.5°C (36.5°F) to a freezing cold -1.7°C (28.9°F). Weather in December »Updated: Jul 4, 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
With an average high-temperature of -4.3°C (24.3°F) and an average low-temperature of -8.4°C (16.9°F), January is the coldest month.
In Sionkylä, during the entire year, the rain falls for 114.9 days and collects up to 260mm (10.24") of precipitation.
January through May, October through December are months with snowfall in Sionkylä.
The months with the most snowfall are January through March, with an average 86mm (3.39") of accumulated snow.
In Sionkylä, during the entire year, snow falls for 85.3 days and aggregates up to 453mm (17.83") of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
February is the most humid month, with an average relative humidity of 95%.
March and April are months with the least rain when the rain falls for 6.3 days and typically aggregates up to 16mm (0.63") of rain.
The least humid month is May, with an average relative humidity of 66%.
June through September are months without snowfall.
The month with the longest days is June, with an average of 19h and 18min of daylight.
The month with the most sunshine is June, with an average of 11.6h of sunshine.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
The warmest time of the year is July, with temperatures averaging a high of 21.8°C (71.2°F) and a low of 12.1°C (53.8°F).
July is the month with the most rainfall. Rain falls for 16.3 days and accumulates 37mm (1.46") of precipitation.
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.
With an average of 5h and 36min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 1.5h of sunshine.
Average temperature
Sionkylä, Finland
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-4.3°C).
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is January (-8.4°C).
Average pressure
Sionkylä, Finland
- Average pressure in January:
1011.1mbar - Average pressure in February:
1011.7mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1013.1mbar - Average pressure in May:
1014.7mbar - Average pressure in June:
1012mbar
- Average pressure in July:
1011mbar - Average pressure in August:
1012.8mbar - Average pressure in September:
1012.8mbar - Average pressure in October:
1013.6mbar - Average pressure in November:
1011.3mbar - Average pressure in December:
1007.5mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed
Sionkylä, Finland
- Average wind speed in January:
11.9km/h - Average wind speed in February:
11.7km/h - Average wind speed in March:
11.9km/h - Average wind speed in April:
11km/h - Average wind speed in May:
11km/h - Average wind speed in June:
10.7km/h
- Average wind speed in July:
10km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
11km/h - Average wind speed in October:
11.5km/h - Average wind speed in November:
11.8km/h - Average wind speed in December:
12.6km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity
Sionkylä, Finland
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall
Sionkylä, Finland
The wettest month (with the highest rainfall) is July (37mm).
The driest months (with the least rainfall) are March and April (16mm).
Average rainfall days
Sionkylä, Finland
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
3 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
9.6 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3 days).
Average snowfall
Sionkylä, Finland
The months with the highest snowfall are January, February and March (86mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Sionkylä, Finland
- Average snowfall days in January:
16.8 days - Average snowfall days in February:
17.7 days - Average snowfall days in March:
17.8 days - Average snowfall days in April:
6.6 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
3.1 days - Average snowfall days in November:
7.3 days - Average snowfall days in December:
15.1 days
The month with the highest number of snowfall days is March (17.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight / Average sunshine
Sionkylä, Finland
- Average daylight in January:
6h and 30min - Average daylight in February:
9h and 0min - Average daylight in March:
11h and 48min - Average daylight in April:
14h and 48min - Average daylight in May:
17h and 36min - Average daylight in June:
19h and 18min
- Average daylight in July:
18h and 24min - Average daylight in August:
15h and 48min - Average daylight in September:
12h and 54min - Average daylight in October:
10h and 0min - Average daylight in November:
7h and 12min - Average daylight in December:
5h and 36min
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 January:
1h and 48min - Average sunshine in February:
2h and 6min - Average sunshine in March:
3h and 36min - Average sunshine in April:
6h and 18min - Average sunshine in May:
9h and 24min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
9h and 18min - Average sunshine in September:
6h and 42min - Average sunshine in October:
3h and 42min - Average sunshine in November:
2h and 24min - Average sunshine in December:
1h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days
Sionkylä, Finland
- Average sunshine days in January:
14.1 days - Average sunshine days in February:
10.4 days - Average sunshine days in March:
10.9 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
13.2 days - Average sunshine days in December:
13.1 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is February (10.4 days).
Average UV index
Sionkylä, Finland
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
Sionkylä, Finland
The month with the most cloud cover is February (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 44).
Average visibility
Sionkylä, Finland
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (6km).
