Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Kastu, Finland, with an average temperature varying between -5.3°C (22.5°F) and -1.9°C (28.6°F). In Kastu, Finland, January is the month with the lowest recorded average temperatures, measuring a high of -1.9°C (28.6°F) and a 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 Kastu, Finland, with an average temperature fluctuating between -1.7°C (28.9°F) and -5.6°C (21.9°F). The advent of February presents an average high-temperature of a still subzero cold -1.7°C (28.9°F), maintaining a close correlation with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Kastu, Finland, with temperature in the range of an average low of -3.5°C (25.7°F) and an average high of 1.3°C (34.3°F). As February transitions into March, Kastu notices a gentle rise in the average high-temperature, transitioning from a subzero cold -1.7°C (28.9°F) to a cold 1.3°C (34.3°F). Weather in March »
Weather in April
April in Kastu, Finland, is a frosty spring month, with an average temperature fluctuating between 6.8°C (44.2°F) and 1.4°C (34.5°F). April's arrival signals an increase in average high-temperatures, moving from March's wintry 1.3°C (34.3°F) to a frosty 6.8°C (44.2°F). Weather in April »
Weather in May
May, the last month of the spring in Kastu, is a mild month, with an average temperature varying between 6.7°C (44.1°F) and 13.2°C (55.8°F). May's arrival coincides with a rise in the average high-temperature, moving from April's chilly 6.8°C (44.2°F) to a refreshing 13.2°C (55.8°F). Weather in May »
Weather in June
June, the first month of the summer in Kastu, is an enjoyable month, with an average temperature varying between 10.1°C (50.2°F) and 17°C (62.6°F). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's moderate 13.2°C (55.8°F) to a still refreshing 17°C (62.6°F). Weather in June »
Weather in July
July in Kastu, Finland, is an agreeable summer month, with an average temperature varying between 13.8°C (56.8°F) and 20.4°C (68.7°F). July, recognised by an average high temperature of 20.4°C (68.7°F) and a low of 13.8°C (56.8°F), is Kastu's warmest month. Weather in July »
Weather in August
August, the last month of the summer in Kastu, is another comfortable month, with an average temperature varying between 19.7°C (67.5°F) and 13.8°C (56.8°F). Kastu, Finland, observes a minor difference in average high-temperatures between July's 20.4°C (68.7°F) and August's 19.7°C (67.5°F). Weather in August »
Weather in September
September, the first month of the autumn in Kastu, is still a refreshing month, with an average temperature fluctuating between 10.2°C (50.4°F) and 15.3°C (59.5°F). Transition into September subtly marks a drop in the average high-temperature, moderately moving 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 Kastu, Finland, is another chilly autumn month, with an average temperature fluctuating between 8.5°C (47.3°F) and 4.7°C (40.5°F). October implies a gentle temperature shift, with average high-temperatures reducing from September's moderate 15.3°C (59.5°F) to a frosty 8.5°C (47.3°F). Weather in October »
Weather in November
November, the last month of the autumn in Kastu, is also an icy month, with an average temperature ranging between max 4.5°C (40.1°F) and min 1.7°C (35.1°F). November's arrival subtly correlates with a reduction in the average high-temperature, down from a chilly 8.5°C (47.3°F) in October to an icy 4.5°C (40.1°F). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Kastu, Finland, with an average temperature fluctuating between 1.1°C (34°F) and -2.2°C (28°F). During the shift to December, Kastu records a mild decrease in average high-temperature, moving from 4.5°C (40.1°F) in November to a still wintry 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
What is the coldest month in Kastu?
During the coldest month in Kastu, January, temperatures average a high of -1.9°C (28.6°F) and a low of -5.3°C (22.5°F).
How many days does it rain in Kastu?
In Kastu, during the entire year, the rain falls for 133.7 days and collects up to 390mm (15.35") of precipitation.
When does it snow in Kastu?
Months with snowfall are January through May, October through December.
What is the snowiest month in Kastu?
January is the month with the most snowfall. Snow falls for 13.7 days and accumulates 103mm (4.06") of snow.
How much does it snow in Kastu?
Throughout the year, there are 60.5 snowfall days, and 454mm (17.87") of snow is accumulated.
When is the lowest UV index in Kastu?
The months with the lowest UV index in Kastu, Finland, are January through March, November and December, with an average maximum UV index of 1.
What is the most humid month in Kastu?
The most humid month is February, with an average relative humidity of 91%.
What is the driest month in Kastu?
The month with the least rainfall in Kastu, Finland, is April, when the rain falls for 9.9 days and typically collects 19mm (0.75") of precipitation.
What is the least humid month in Kastu?
May is the least humid month in Kastu, with an average relative humidity of 71%.
When it does not snow in Kastu?
June through September are months without snowfall in Kastu, Finland.
When are the longest days in Kastu?
June has the longest days of the year, with an average of 18h and 54min of daylight.
What are the months with the highest UV index in Kastu?
The months with the highest UV index are June through August, with an average maximum UV index of 5.
What time of the year is the hottest in Kastu?
In Kastu, July is the month with the highest recorded average temperatures, measuring a high of 20.4°C (68.7°F) and a low of 13.8°C (56.8°F).
What is the wettest month in Kastu?
July is the month with the most rainfall in Kastu. Rain falls for 15.1 days and accumulates 49mm (1.93") of precipitation.
What month has the most sunshine in Kastu?
With an average of 11.5h of sunshine, July has the most sunshine of the year.
When is Daylight Saving Time (DST) in Kastu?
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.
What is the month with the shortest days in Kastu?
December has the shortest days of the year, with an average of 5h and 54min of daylight.
What is the month with the least sunshine in Kastu?
The month with the least sunshine in Kastu is December, with an average of 2h of sunshine.
Average temperature
Kastu, 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
Kastu, 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:
1013.2mbar - 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
Kastu, 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:
15.8km/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
Kastu, Finland
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Kastu, Finland
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days
Kastu, 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:
13.6 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
13.1 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
Kastu, 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
Kastu, 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
Kastu, Finland
- Average daylight in January:
6h and 4min - Average daylight in February:
9h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 4min - Average daylight in May:
17h and 2min - Average daylight in June:
18h and 5min
- Average daylight in July:
18h and 1min - Average daylight in August:
15h and 4min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 1min - Average daylight in November:
7h and 3min - Average daylight in December:
5h and 5min
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 1min - Average sunshine in February:
2h and 5min - Average sunshine in March:
4h and 4min - Average sunshine in April:
7h and 4min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
11h and 3min - Average sunshine in August:
9h and 5min - Average sunshine in September:
7h and 4min - Average sunshine in October:
4h and 2min - Average sunshine in November:
3h and 1min - Average sunshine in December:
2h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days
Kastu, 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:
13.2 days - Average sunshine days in October:
14.8 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
Kastu, 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
Kastu, 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
Kastu, 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).
