Climate and monthly weather forecastKöyliö, Finland
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Köyliö, Finland, with temperature in the range of an average high of -1.5°C (29.3°F) and an average low of -4.7°C (23.5°F). The temperature hits its lowest levels in January and February, recording an average high-temperature of -1.5°C (29.3°F). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Köyliö, Finland, with temperature in the range of an average high of -1.5°C (29.3°F) and an average low of -5°C (23°F). Köyliö experiences its coldest period in January and February, averaging a high-temperature of -1.5°C (29.3°F). Weather in February »Weather in March
March, the first month of the spring in Köyliö, is an icy month, with an average temperature ranging between max 1°C (33.8°F) and min -3.1°C (26.4°F). The arrival of March sees a recorded average high-temperature of a cold 1°C (33.8°F), showing little divergence from the previous month's conditions. Weather in March »Weather in April
April, the same as March, is a wintry spring month in Köyliö, Finland, with temperature in the range of an average low of 1.5°C (34.7°F) and an average high of 5.6°C (42.1°F). The onset of April brings a minor temperature shift, with the average high-temperature moving from 1°C (33.8°F) in March to a still wintry 5.6°C (42.1°F). Weather in April »Weather in May
The last month of the spring, May, is a cool month in Köyliö, Finland, with an average temperature varying between 11.7°C (53.1°F) and 6.5°C (43.7°F). The onset of May marks an increase in the average high-temperature, moving from a wintry 5.6°C (42.1°F) in April to a fresh 11.7°C (53.1°F). Weather in May »Weather in June
June, the first month of the summer in Köyliö, is a moderate month, with an average temperature fluctuating between 10.3°C (50.5°F) and 15.9°C (60.6°F). A subtle rise in the average high-temperature is observed during June, adjusting from a cool 11.7°C (53.1°F) in May to a mild 15.9°C (60.6°F). Weather in June »Weather in July
July is a comfortable summer month in Köyliö, Finland, with an average temperature varying between 19.7°C (67.5°F) and 13.8°C (56.8°F). July is the warmest month, with the temperature often reaching an average high of 19.7°C (67.5°F) and an average low of 13.8°C (56.8°F). Weather in July »Weather in August
The last month of the summer, August, is another comfortable month in Köyliö, Finland, with an average temperature varying between 14°C (57.2°F) and 19.1°C (66.4°F). Köyliö experiences a recorded average high-temperature of a still comfortable 19.1°C (66.4°F) in August, closely aligned with July's 19.7°C (67.5°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderate month in Köyliö, Finland, with an average temperature ranging between min 10.8°C (51.4°F) and max 14.8°C (58.6°F). With the onset of September, the average high-temperature subtly recedes from August's 19.1°C (66.4°F) to a still refreshing 14.8°C (58.6°F). Weather in September »Weather in October
October, like September, is another chilly autumn month in Köyliö, Finland, with an average temperature varying between 5.4°C (41.7°F) and 8.2°C (46.8°F). Köyliö's transition into October involves a shift in temperature, receding from a moderate 14.8°C (58.6°F) in September to a chilly 8.2°C (46.8°F). Weather in October »Weather in November
November, the last month of the autumn in Köyliö, is another cold month, with an average temperature ranging between min 2.5°C (36.5°F) and max 4.5°C (40.1°F). November signals a slight drop in average high-temperature, sliding from October's chilly 8.2°C (46.8°F) to an icy 4.5°C (40.1°F). Weather in November »Weather in December
December, the first month of the winter in Köyliö, is also an icy month, with an average temperature fluctuating between -1.5°C (29.3°F) and 1°C (33.8°F). The average high-temperature shows a slight dip in December, from November's wintry 4.5°C (40.1°F) to a still cold 1°C (33.8°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
Köyliö's coldest period falls in January and February, when the average high-temperatures ascend to -1.5°C (29.3°F).
Throughout the year, there are 135.2 rainfall days, and 422mm (16.61") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, in Köyliö, there are 58.1 snowfall days, and 382mm (15.04") of snow is accumulated.
January and December, with an average of 2.1h of sunshine, are months with the least sunshine in Köyliö.
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Köyliö.
February is the most humid month in Köyliö, Finland, with an average relative humidity of 91%.
The month with the most snowfall in Köyliö is March, when snow falls for 13 days and typically aggregates up to 88mm (3.46") of snow.
The month with the least rainfall is April, when the rain falls for 9.8 days and typically collects 21mm (0.83") of precipitation.
With an average relative humidity of 71%, May is the least humid month in Köyliö.
In Köyliö, Finland, snow does not fall in June through September.
The month with the longest days in Köyliö is June, with an average of 19h and 12min of daylight.
With an average of 12.3h of sunshine, June has the most sunshine of the year.
The months with the highest UV index are June and July, with an average maximum UV index of 5.
July is the warmest month in Köyliö, exhibiting average temperatures of 19.7°C (67.5°F) at the peak and 13.8°C (56.8°F) at the base.
The month with the most rainfall in Köyliö, Finland, is July, when the rain falls for 15.8 days and typically aggregates up to 56mm (2.2") 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 42min of daylight, December has the shortest days of the year.
Average temperature
Köyliö, Finland
The warmest month (with the highest average high temperature) is July (19.7°C).
The months with the lowest average high temperature are January and February (-1.5°C).
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (-5°C).
Average pressure
Köyliö, Finland
- Average pressure in January:
1010.6mbar - Average pressure in February:
1011.2mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1013.4mbar - Average pressure in May:
1014.8mbar - Average pressure in June:
1012.2mbar
- Average pressure in July:
1010.9mbar - Average pressure in August:
1012.5mbar - Average pressure in September:
1012.8mbar - Average pressure in October:
1013.4mbar - Average pressure in November:
1010.8mbar - Average pressure in December:
1006.9mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1006.9mbar).
Average wind speed
Köyliö, Finland
- Average wind speed in January:
19km/h - Average wind speed in February:
17.2km/h - Average wind speed in March:
17.1km/h - Average wind speed in April:
15.4km/h - Average wind speed in May:
14.7km/h - Average wind speed in June:
14.6km/h
- Average wind speed in July:
14.5km/h - Average wind speed in August:
15.2km/h - Average wind speed in September:
16.8km/h - Average wind speed in October:
18.3km/h - Average wind speed in November:
19km/h - Average wind speed in December:
20.7km/h
The windiest month (with the highest average wind speed) is December (20.7km/h).
The calmest month (with the lowest average wind speed) is July (14.5km/h).
Average humidity
Köyliö, Finland
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Köyliö, Finland
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days
Köyliö, Finland
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
11.9 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
14 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
13.5 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Köyliö, Finland
The month with the highest snowfall is March (88mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Köyliö, Finland
- Average snowfall days in January:
12 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
13 days - Average snowfall days in April:
3.4 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:
1.3 days - Average snowfall days in November:
3.6 days - Average snowfall days in December:
11.9 days
The month with the highest number of snowfall days is March (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Köyliö, Finland
- Average daylight in January:
6h and 36min - Average daylight in February:
9h and 0min - Average daylight in March:
11h and 48min - Average daylight in April:
14h and 42min - Average daylight in May:
17h and 30min - Average daylight in June:
19h and 12min
- Average daylight in July:
18h and 18min - Average daylight in August:
15h and 42min - Average daylight in September:
12h and 54min - Average daylight in October:
10h and 0min - Average daylight in November:
7h and 18min - Average daylight in December:
5h and 42min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in January:
2h and 6min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 54min - Average sunshine in April:
7h and 42min - Average sunshine in May:
10h and 24min - Average sunshine in June:
12h and 18min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
10h and 6min - Average sunshine in September:
7h and 36min - Average sunshine in October:
4h and 12min - Average sunshine in November:
3h and 6min - Average sunshine in December:
2h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 6min).
Average sunshine days
Köyliö, Finland
- Average sunshine days in January:
12.6 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
16.5 days - Average sunshine days in June:
16.8 days
- Average sunshine days in July:
14.1 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
11.2 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is June (16.8 days).
The month with the least sunshine days is December (10.7 days).
Average UV index
Köyliö, 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 and December (UV index 1).
Average cloud cover
Köyliö, Finland
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility
Köyliö, Finland
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February and March (8km).
