Climate and monthly weather forecastKoiskala, Finland
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Koiskala, Finland, with temperature in the range of an average high of -4.5°C (23.9°F) and an average low of -8.9°C (16°F). In Koiskala, January records the lowest average temperatures, peaking at -4.5°C (23.9°F) and reaching a low of -8.9°C (16°F). Weather in January »Weather in February
February, the last month of the winter in Koiskala, is another freezing cold month, with temperature in the range of an average high of -3.3°C (26.1°F) and an average low of -8.4°C (16.9°F). The transition into February marks the average high-temperature at a still subzero cold -3.3°C (26.1°F), differing minimally from January's -4.5°C (23.9°F). Weather in February »Weather in March
March, the first month of the spring in Koiskala, is a wintry month, with an average temperature fluctuating between -5.7°C (21.7°F) and 0°C (32°F). The arrival of March witnesses a small shift in the average high-temperature, moving from a freezing cold -3.3°C (26.1°F) in February to an icy 0°C (32°F). Weather in March »Weather in April
April is a chilly spring month in Koiskala, Finland, with an average temperature varying between 7.2°C (45°F) and 0°C (32°F). The average high-temperature increases in April, moving from an icy 0°C (32°F) in March to a frosty 7.2°C (45°F). Weather in April »Weather in May
May, the last month of the spring in Koiskala, is a refreshing month, with temperature in the range of an average high of 15.5°C (59.9°F) and an average low of 5.9°C (42.6°F). The arrival of May brings a significant change in Koiskala's weather, with average high-temperatures climbing from April's frosty 7.2°C (45°F) to a moderate 15.5°C (59.9°F). Weather in May »Weather in June
June, the first month of the summer in Koiskala, is a comfortable month, with an average temperature ranging between min 9.3°C (48.7°F) and max 18.9°C (66°F). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from a moderate 15.5°C (59.9°F) to an enjoyable 18.9°C (66°F). Weather in June »Weather in July
July in Koiskala, Finland, is an agreeable summer month, with temperature in the range of an average high of 22°C (71.6°F) and an average low of 12.4°C (54.3°F). Koiskala, Finland, notes the warmest temperatures in July, with a high average of 22°C (71.6°F) and a low of 12.4°C (54.3°F). Weather in July »Weather in August
August, the last month of the summer in Koiskala, is also an agreeable month, with an average temperature varying between 11.3°C (52.3°F) and 20.3°C (68.5°F). Koiskala's weather in August displays an average high-temperature of a still pleasant 20.3°C (68.5°F), showing minor disparity from July's 22°C (71.6°F). Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Koiskala, Finland, with an average temperature fluctuating between 7.7°C (45.9°F) and 14.9°C (58.8°F). With September's onset, the average high-temperature recedes from August's pleasant 20.3°C (68.5°F) to a mild 14.9°C (58.8°F). Weather in September »Weather in October
October, like September, is a frosty autumn month in Koiskala, Finland, with an average temperature fluctuating between 6.8°C (44.2°F) and 2.4°C (36.3°F). The onset of October brings a distinct decrease in the average high-temperature, receding from a refreshing 14.9°C (58.8°F) in September to a frosty 6.8°C (44.2°F). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Koiskala, Finland, with an average temperature varying between -0.6°C (30.9°F) and 2.3°C (36.1°F). November ushers in a minute temperature change, with average high-temperatures reducing from October's frosty 6.8°C (44.2°F) to a wintry 2.3°C (36.1°F). Weather in November »Weather in December
December, the first month of the winter in Koiskala, is also a subzero cold month, with an average temperature fluctuating between -5.1°C (22.8°F) and -1.4°C (29.5°F). A modest decline in the average high-temperature is seen during December, decreasing from an icy 2.3°C (36.1°F) in November to a subzero cold -1.4°C (29.5°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Koiskala, Finland
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-4.5°C).
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-8.9°C).
Average pressure
Koiskala, Finland
- Average pressure in January:
1011.7mbar - Average pressure in February:
1012.5mbar - Average pressure in March:
1011mbar - Average pressure in April:
1013.2mbar - Average pressure in May:
1014.8mbar - Average pressure in June:
1011.9mbar
- Average pressure in July:
1011.1mbar - Average pressure in August:
1013.2mbar - Average pressure in September:
1013.2mbar - Average pressure in October:
1014mbar - Average pressure in November:
1012.1mbar - Average pressure in December:
1008.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed
Koiskala, Finland
- Average wind speed in January:
11.3km/h - Average wind speed in February:
10.9km/h - Average wind speed in March:
11.3km/h - Average wind speed in April:
10.4km/h - Average wind speed in May:
10.5km/h - Average wind speed in June:
10.4km/h
- Average wind speed in July:
9.6km/h - Average wind speed in August:
9.4km/h - Average wind speed in September:
10.4km/h - Average wind speed in October:
10.9km/h - Average wind speed in November:
11.1km/h - Average wind speed in December:
12km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity
Koiskala, Finland
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall
Koiskala, Finland
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days
Koiskala, Finland
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
11.7 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
11.7 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall
Koiskala, Finland
- Average snowfall in January:
196mm - Average snowfall in February:
179mm - Average snowfall in March:
162mm - Average snowfall in April:
52mm - Average snowfall in May:
37mm - Average snowfall in June:
0mm
The month with the highest snowfall is January (196mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days
Koiskala, Finland
- Average snowfall days in January:
18.9 days - Average snowfall days in February:
18.5 days - Average snowfall days in March:
17.5 days - Average snowfall days in April:
7.5 days - Average snowfall days in May:
1 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:
0.1 days - Average snowfall days in October:
3.5 days - Average snowfall days in November:
7.8 days - Average snowfall days in December:
18.9 days
The months with the highest number of snowfall days are January and December (18.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Koiskala, Finland
- Average daylight in January:
6h and 36min - 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 30min - Average daylight in June:
19h and 6min
- 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 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in January:
1h and 30min - Average sunshine in February:
2h and 0min - Average sunshine in March:
3h and 12min - Average sunshine in April:
5h and 48min - Average sunshine in May:
9h and 18min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
9h and 12min - Average sunshine in September:
6h and 30min - Average sunshine in October:
3h and 30min - Average sunshine in November:
2h and 18min - Average sunshine in December:
1h and 24min
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 24min).
Average sunshine days
Koiskala, Finland
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
10.1 days - Average sunshine days in March:
10.3 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
17.6 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
13.3 days - Average sunshine days in November:
12.1 days - Average sunshine days in December:
8.4 days
The months with the most sunshine days are May and August (17.6 days).
The month with the least sunshine days is December (8.4 days).
Average UV index
Koiskala, 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
Koiskala, Finland
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility
Koiskala, Finland
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).





