Climate and monthly weather forecastSiilinjärvi, Finland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Siilinjärvi, Finland, is a freezing cold winter month, with temperature in the range of an average low of -9.9°C (14.2°F) and an average high of -5.8°C (21.6°F). January, having an average high-temperature of -5.8°C (21.6°F) and an average low-temperature of -9.9°C (14.2°F), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Siilinjärvi, Finland, with an average temperature fluctuating between -4.7°C (23.5°F) and -9.7°C (14.5°F). An average high-temperature of a still freezing cold -4.7°C (23.5°F) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »Weather in March
The first month of the spring, March, is also a subzero cold month in Siilinjärvi, Finland, with temperature in the range of an average high of -1.5°C (29.3°F) and an average low of -6.8°C (19.8°F). Siilinjärvi's transition into March brings a slight rise in the average high-temperature, moving from -4.7°C (23.5°F) in February to a still freezing cold -1.5°C (29.3°F). Weather in March »Weather in April
April in Siilinjärvi, Finland, is a wintry spring month, with an average temperature varying between -1.1°C (30°F) and 4.3°C (39.7°F). Siilinjärvi's transition into April sees a rise in the average high-temperature, advancing from a freezing cold -1.5°C (29.3°F) in March to a wintry 4.3°C (39.7°F). Weather in April »Weather in May
The last month of the spring, May, is a cool month in Siilinjärvi, Finland, with an average temperature varying between 12.8°C (55°F) and 5.4°C (41.7°F). May's onset brings a noticeable temperature rise, soaring from an icy 4.3°C (39.7°F) in April to a fresh 12.8°C (55°F). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Siilinjärvi, Finland, with an average temperature varying between 17.3°C (63.1°F) and 9.5°C (49.1°F). The commencement of June sees a minor shift in the average high-temperature, moving from a cool 12.8°C (55°F) in May to a refreshing 17.3°C (63.1°F). Weather in June »Weather in July
July is an agreeable summer month in Siilinjärvi, Finland, with an average temperature fluctuating between 20.9°C (69.6°F) and 12.9°C (55.2°F). Siilinjärvi's temperatures tend to reach their peak averages in July, with a high of 20.9°C (69.6°F) and a low of 12.9°C (55.2°F). Weather in July »Weather in August
August, the last month of the summer in Siilinjärvi, is another refreshing month, with an average temperature fluctuating between 19.3°C (66.7°F) and 11.8°C (53.2°F). Siilinjärvi records an average high-temperature of an enjoyable 19.3°C (66.7°F) in August, maintaining a close correlation with July's 20.9°C (69.6°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderate month in Siilinjärvi, Finland, with an average temperature fluctuating between 13.6°C (56.5°F) and 7.9°C (46.2°F). The start of September involves a temperature drop, moving from a refreshing 19.3°C (66.7°F) in August to a moderate 13.6°C (56.5°F). Weather in September »Weather in October
October, like September, in Siilinjärvi, Finland, is a wintry autumn month, with an average temperature ranging between min 2°C (35.6°F) and max 5.8°C (42.4°F). Siilinjärvi's weather changes with the onset of October, slightly falling from a mild 13.6°C (56.5°F) in September to an icy 5.8°C (42.4°F). Weather in October »Weather in November
November, the last month of the autumn in Siilinjärvi, is also an icy month, with temperature in the range of an average low of -1.1°C (30°F) and an average high of 1.5°C (34.7°F). The start of November comes with a small reduction in the average high-temperature, subtly receding from an icy 5.8°C (42.4°F) in October to a still cold 1.5°C (34.7°F). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Siilinjärvi, Finland, with an average temperature ranging between min -5.7°C (21.7°F) and max -2.7°C (27.1°F). Siilinjärvi's weather subtly changes with the onset of December, barely falling from a cold 1.5°C (34.7°F) in November to a freezing cold -2.7°C (27.1°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
January, with its high-temperature average of -5.8°C (21.6°F) and a low-temperature average of -9.9°C (14.2°F), is the coldest month.
January and February, with an average relative humidity of 95%, are most humid months.
In Siilinjärvi, Finland, during the entire year, the rain falls for 106.5 days and collects up to 384mm (15.12") of precipitation.
Months with snowfall in Siilinjärvi, Finland, are January through June, September through December.
The month with the most snowfall is January, when snow falls for 23.2 days and typically aggregates up to 230mm (9.06") of snow.
In Siilinjärvi, Finland, during the entire year, snow falls for 110.8 days and aggregates up to 1074mm (42.28") of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
April is the month with the least rainfall in Siilinjärvi, Finland. Rain falls for 8.6 days and accumulates 23mm (0.91") of precipitation.
With an average relative humidity of 68%, June is the least humid month in Siilinjärvi, Finland.
The month with the longest days is June, with an average of 20h and 6min of daylight.
With an average of 12.1h of sunshine, June has the most sunshine of the year in Siilinjärvi.
July, marked by an average high-temperature of 20.9°C (69.6°F) and a low-temperature of 12.9°C (55.2°F), is the warmest month in Siilinjärvi.
The month with the most rainfall is July, when the rain falls for 13.7 days and typically aggregates up to 48mm (1.89") of precipitation.
July and August are months without snowfall in Siilinjärvi.
The month with the highest UV index in Siilinjärvi is July, with an average maximum UV index of 5.
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.
The month with the shortest days is December, with an average of 4h and 54min of daylight.
The month with the least sunshine in Siilinjärvi is December, with an average of 0.8h of sunshine.
Average temperature
Siilinjärvi, Finland
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (-5.8°C).
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-9.9°C).
Average pressure
Siilinjärvi, Finland
- Average pressure in January:
1011.6mbar - Average pressure in February:
1012.2mbar - Average pressure in March:
1010mbar - Average pressure in April:
1012.5mbar - Average pressure in May:
1014.5mbar - Average pressure in June:
1011.3mbar
- Average pressure in July:
1010.8mbar - Average pressure in August:
1012.6mbar - Average pressure in September:
1012.7mbar - Average pressure in October:
1013.4mbar - Average pressure in November:
1011.8mbar - Average pressure in December:
1008mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed
Siilinjärvi, Finland
- Average wind speed in January:
12.8km/h - Average wind speed in February:
12.8km/h - Average wind speed in March:
12.7km/h - Average wind speed in April:
11.4km/h - Average wind speed in May:
11.7km/h - Average wind speed in June:
12km/h
- Average wind speed in July:
10.9km/h - Average wind speed in August:
11.6km/h - Average wind speed in September:
13km/h - Average wind speed in October:
14.1km/h - Average wind speed in November:
15km/h - Average wind speed in December:
14.7km/h
The windiest month (with the highest average wind speed) is November (15km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity
Siilinjärvi, Finland
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (68%).
Average rainfall
Siilinjärvi, Finland
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days
Siilinjärvi, Finland
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
3.1 days - Average rainfall days in March:
5.3 days - Average rainfall days in April:
8.6 days - Average rainfall days in May:
9.8 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
13.7 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is February (3.1 days).
Average snowfall
Siilinjärvi, Finland
- Average snowfall in January:
230mm - Average snowfall in February:
223mm - Average snowfall in March:
190mm - Average snowfall in April:
77mm - Average snowfall in May:
22mm - Average snowfall in June:
1mm
The month with the highest snowfall is January (230mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Siilinjärvi, Finland
- Average snowfall days in January:
23.2 days - Average snowfall days in February:
21.8 days - Average snowfall days in March:
19.2 days - Average snowfall days in April:
8.4 days - Average snowfall days in May:
1.3 days - Average snowfall days in June:
0.2 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
4.5 days - Average snowfall days in November:
10.8 days - Average snowfall days in December:
21.1 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Siilinjärvi, Finland
- Average daylight in January:
6h and 0min - Average daylight in February:
8h and 48min - Average daylight in March:
11h and 48min - Average daylight in April:
15h and 0min - Average daylight in May:
18h and 6min - Average daylight in June:
20h and 6min
- Average daylight in July:
19h and 6min - Average daylight in August:
16h and 6min - Average daylight in September:
13h and 0min - Average daylight in October:
9h and 54min - Average daylight in November:
6h and 48min - Average daylight in December:
4h and 54min
The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 4h and 54min).
- Average sunshine in January:
1h and 18min - Average sunshine in February:
2h and 0min - Average sunshine in March:
3h and 12min - Average sunshine in April:
5h and 0min - Average sunshine in May:
9h and 54min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
9h and 24min - Average sunshine in September:
6h and 24min - Average sunshine in October:
3h and 24min - Average sunshine in November:
2h and 0min - Average sunshine in December:
0h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days
Siilinjärvi, Finland
- Average sunshine days in January:
7.9 days - Average sunshine days in February:
7.3 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
19.3 days - Average sunshine days in June:
16.8 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
16.1 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
10 days - Average sunshine days in December:
8.3 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index
Siilinjärvi, Finland
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
Siilinjärvi, Finland
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility
Siilinjärvi, Finland
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (5km).
