Climate and monthly weather forecastIso-Heikkilä, Finland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Iso-Heikkilä, Finland, is a freezing cold winter month, with an average temperature fluctuating between -1.9°C (28.6°F) and -5.3°C (22.5°F). January is the coldest month, with the temperature often reaching an average high of -1.9°C (28.6°F) and an average low of -5.3°C (22.5°F). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Iso-Heikkilä, Finland, with an average temperature varying between -5.6°C (21.9°F) and -1.7°C (28.9°F). The weather during February records an average high-temperature of a still freezing cold -1.7°C (28.9°F), closely mirroring the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Iso-Heikkilä, Finland, with an average temperature varying between -3.5°C (25.7°F) and 1.3°C (34.3°F). The beginning of March marks a minor shift in the average high-temperature, moving from February's freezing cold -1.7°C (28.9°F) to a cold 1.3°C (34.3°F). Weather in March »Weather in April
April in Iso-Heikkilä, Finland, is a chilly spring month, with temperature in the range of an average high of 6.8°C (44.2°F) and an average low of 1.4°C (34.5°F). A rise in the average high-temperature is observed during April, moving from a cold 1.3°C (34.3°F) in March to a chilly 6.8°C (44.2°F). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Iso-Heikkilä, Finland, with temperature in the range of an average low of 6.7°C (44.1°F) and an average high of 13.2°C (55.8°F). With the onset of May, Iso-Heikkilä's average high-temperature sees a rise, moving from April's frosty 6.8°C (44.2°F) to a moderate 13.2°C (55.8°F). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Iso-Heikkilä, Finland, with an average temperature fluctuating between 10.1°C (50.2°F) and 17°C (62.6°F). Iso-Heikkilä's June weather indicates a minor ascent in high-temperatures, adjusting from a refreshing 13.2°C (55.8°F) in May to an enjoyable 17°C (62.6°F). Weather in June »Weather in July
July in Iso-Heikkilä, Finland, is an agreeable summer month, with temperature in the range of an average high of 20.4°C (68.7°F) and an average low of 13.8°C (56.8°F). In Iso-Heikkilä, temperatures reach their average annual highs in July, measuring 20.4°C (68.7°F) and a minimum average of 13.8°C (56.8°F). Weather in July »Weather in August
The last month of the summer, August, is also an enjoyable month in Iso-Heikkilä, Finland, with an average temperature fluctuating between 13.8°C (56.8°F) and 19.7°C (67.5°F). Upon the onset of August, Iso-Heikkilä witnesses an average high-temperature of a refreshing 19.7°C (67.5°F), showing a close resemblance to the prior month. Weather in August »Weather in September
September, the first month of the autumn in Iso-Heikkilä, is also a moderate month, with an average temperature ranging between max 15.3°C (59.5°F) and min 10.2°C (50.4°F). The onset of September brings a small shift in high-temperatures, falling from a comfortable 19.7°C (67.5°F) in August to a still refreshing 15.3°C (59.5°F). Weather in September »Weather in October
October, the same as September, in Iso-Heikkilä, Finland, is a frosty autumn month, with an average temperature varying between 4.7°C (40.5°F) and 8.5°C (47.3°F). Iso-Heikkilä's average high-temperature decreases in October, falling from a moderate 15.3°C (59.5°F) in September to a chilly 8.5°C (47.3°F). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Iso-Heikkilä, Finland, with temperature in the range of an average low of 1.7°C (35.1°F) and an average high of 4.5°C (40.1°F). In November, the meteorological conditions change slightly, with the average high-temperature moving from a chilly 8.5°C (47.3°F) in October to a wintry 4.5°C (40.1°F). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Iso-Heikkilä, Finland, with an average temperature varying between -2.2°C (28°F) and 1.1°C (34°F). December is marked by a subtle drop in average high-temperatures, transitioning from a wintry 4.5°C (40.1°F) in November to a still cold 1.1°C (34°F). Weather in December »Updated: Feb 1, 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
Iso-Heikkilä witnesses the coldest weather in January, with temperatures averaging a high of -1.9°C (28.6°F) and a low of -5.3°C (22.5°F).
Throughout the year, in Iso-Heikkilä, Finland, there are 134.6 rainfall days, and 394mm (15.51") of precipitation is accumulated.
Months with snowfall in Iso-Heikkilä are January through May, October through December.
The month with the most snowfall in Iso-Heikkilä, Finland, is January, when snow falls for 13.7 days and typically aggregates up to 103mm (4.06") of snow.
In Iso-Heikkilä, Finland, during the entire year, snow falls for 60.5 days and aggregates up to 454mm (17.87") of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
The most humid month in Iso-Heikkilä is February, with an average relative humidity of 91%.
April is the month with the least rainfall in Iso-Heikkilä, Finland. Rain falls for 9.9 days and accumulates 19mm (0.75") of precipitation.
With an average relative humidity of 71%, May is the least humid month.
June through September are months without snowfall.
The month with the longest days in Iso-Heikkilä, Finland, is June, with an average of 18h and 54min of daylight.
The months with the highest UV index in Iso-Heikkilä, Finland, are June through August, with an average maximum UV index of 5.
In Iso-Heikkilä, the peak average temperatures are observed in July, with a high of 20.4°C (68.7°F) and a low of 13.8°C (56.8°F).
July is the month with the most rainfall. Rain falls for 15.1 days and accumulates 49mm (1.93") of precipitation.
July has the most sunshine of the year in Iso-Heikkilä, with an average of 11.5h of sunshine.
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 in Iso-Heikkilä, Finland, is December, with an average of 5h and 54min of daylight.
December has the least sunshine of the year in Iso-Heikkilä, Finland, with an average of 1.9h of sunshine.
Average temperature
Iso-Heikkilä, Finland
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).
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
Iso-Heikkilä, Finland
- Average pressure in January:
1011.1mbar - Average pressure in February:
1011.7mbar - Average pressure in March:
1011.1mbar - Average pressure in April:
1013.6mbar - Average pressure in May:
1014.9mbar - Average pressure in June:
1012.3mbar
- Average pressure in July:
1011.1mbar - Average pressure in August:
1012.9mbar - Average pressure in September:
1013mbar - Average pressure in October:
1013.8mbar - Average pressure in November:
1011.3mbar - Average pressure in December:
1007.6mbar
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
Iso-Heikkilä, Finland
- Average wind speed in January:
18.6km/h - Average wind speed in February:
17.2km/h - Average wind speed in March:
17km/h - Average wind speed in April:
15.5km/h - Average wind speed in May:
14.4km/h - Average wind speed in June:
14.4km/h
- Average wind speed in July:
13.9km/h - Average wind speed in August:
14.3km/h - Average wind speed in September:
15.9km/h - Average wind speed in October:
17.4km/h - Average wind speed in November:
18.4km/h - Average wind speed in December:
20.4km/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
Iso-Heikkilä, Finland
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Iso-Heikkilä, Finland
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days
Iso-Heikkilä, Finland
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
9.9 days - Average rainfall days in May:
12 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
14.5 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
13.2 days - Average rainfall days in December:
11.1 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
Iso-Heikkilä, Finland
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
Iso-Heikkilä, Finland
- Average snowfall days in January:
13.7 days - Average snowfall days in February:
12.4 days - Average snowfall days in March:
11.7 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0 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:
2.2 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
12.4 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 daylight / Average sunshine
Iso-Heikkilä, Finland
- Average daylight in January:
6h and 48min - Average daylight in February:
9h and 6min - Average daylight in March:
11h and 48min - Average daylight in April:
14h and 42min - Average daylight in May:
17h and 18min - Average daylight in June:
18h and 54min
- Average daylight in July:
18h and 6min - Average daylight in August:
15h and 36min - Average daylight in September:
12h and 54min - Average daylight in October:
10h and 6min - Average daylight in November:
7h and 30min - Average daylight in December:
5h and 54min
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 January:
2h and 12min - Average sunshine in February:
2h and 54min - Average sunshine in March:
4h and 42min - Average sunshine in April:
7h and 36min - Average sunshine in May:
10h and 12min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 30min - Average sunshine in August:
9h and 54min - Average sunshine in September:
7h and 36min - Average sunshine in October:
4h and 18min - Average sunshine in November:
3h and 0min - Average sunshine in December:
1h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days
Iso-Heikkilä, Finland
- Average sunshine days in January:
13.2 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
17.2 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
11.2 days - Average sunshine days in December:
9.6 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
Iso-Heikkilä, Finland
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
Iso-Heikkilä, Finland
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
Iso-Heikkilä, Finland
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).
