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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, the same as December, in Jonku, Finland, is a freezing cold winter month, with temperature in the range of an average low of -12.7°C (9.1°F) and an average high of -7.7°C (18.1°F). The lowest temperatures are recorded in January, with averages reaching a high of -7.7°C (18.1°F) and a low of -12.7°C (9.1°F). Weather in January »
Weather in February
February, the last month of the winter in Jonku, is another freezing cold month, with temperature in the range of an average high of -6.3°C (20.7°F) and an average low of -11.6°C (11.1°F). As February takes hold, the average high-temperature is a still freezing cold -6.3°C (20.7°F), nearly mirroring that of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Jonku, is also a subzero cold month, with an average temperature ranging between max -2.3°C (27.9°F) and min -8.9°C (16°F). As February gives way to March, the average high-temperature displays a slight ascent, adjusting from a freezing cold -6.3°C (20.7°F) to a still subzero cold -2.3°C (27.9°F). Weather in March »
Weather in April
April in Jonku, Finland, is an icy spring month, with an average temperature ranging between max 2.7°C (36.9°F) and min -3.1°C (26.4°F). The arrival of April signals an increase in the average high-temperature, moving from a subzero cold -2.3°C (27.9°F) in March to an icy 2.7°C (36.9°F). Weather in April »
Weather in May
May, the last month of the spring in Jonku, is a fresh month, with an average temperature fluctuating between 12°C (53.6°F) and 3.5°C (38.3°F). With the onset of May, Jonku experiences a distinct temperature rise, with the average high-temperature advancing from April's icy 2.7°C (36.9°F) to a fresh 12°C (53.6°F). Weather in May »
Weather in June
June, the first month of the summer in Jonku, is an enjoyable month, with an average temperature ranging between max 16.8°C (62.2°F) and min 7.6°C (45.7°F). A subtle rise in the average high-temperature is observed during June, adjusting from a fresh 12°C (53.6°F) in May to a comfortable 16.8°C (62.2°F). Weather in June »
Weather in July
July is a pleasant summer month in Jonku, Finland, with an average temperature ranging between min 11°C (51.8°F) and max 20.7°C (69.3°F). Temperature readings reach their annual highs in July, averaging 20.7°C (69.3°F) and a minimum average of 11°C (51.8°F). Weather in July »
Weather in August
The last month of the summer, August, is another refreshing month in Jonku, Finland, with temperature in the range of an average low of 9.2°C (48.6°F) and an average high of 17.9°C (64.2°F). Jonku marks the arrival of August with an average high-temperature of an enjoyable 17.9°C (64.2°F), hardly different from July's 20.7°C (69.3°F). Weather in August »
Weather in September
September, the first month of the autumn in Jonku, is also a fresh month, with temperature in the range of an average high of 12.4°C (54.3°F) and an average low of 5.5°C (41.9°F). Stepping into September, Jonku observes a temperature decline, with the average high falling from August's refreshing 17.9°C (64.2°F) to a fresh 12.4°C (54.3°F). Weather in September »
Weather in October
October, the same as September, is a wintry autumn month in Jonku, Finland, with an average temperature fluctuating between -0.7°C (30.7°F) and 3.6°C (38.5°F). The onset of October marks a clear decrease in the average high-temperature, dropping from a fresh 12.4°C (54.3°F) in September to a wintry 3.6°C (38.5°F). Weather in October »
Weather in November
November, the last month of the autumn in Jonku, is also a subzero cold month, with an average temperature fluctuating between -0.6°C (30.9°F) and -3.6°C (25.5°F). Jonku's November weather shows a modest shift in high-temperatures, falling from October's icy 3.6°C (38.5°F) to a subzero cold -0.6°C (30.9°F). Weather in November »
Weather in December
December, the first month of the winter in Jonku, is still a freezing cold month, with an average temperature varying between -8.5°C (16.7°F) and -4.6°C (23.7°F). The arrival of December suggests a slight decrease in the average high-temperature, moving from -0.6°C (30.9°F) in November to a still freezing cold -4.6°C (23.7°F). Weather in December »
Updated: Jun 9, 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 are the coldest months?
With average temperatures fluctuating between a high of -7.7°C (18.1°F) and a low of -12.7°C (9.1°F), January stands out as the coldest month in Jonku.
What is the most humid month?
January, February and December, with an average relative humidity of 96%, are most humid months.
How many days does it rain?
Throughout the year, there are 134 rainfall days, and 527mm (20.75") of precipitation is accumulated.
When does it snow?
January through June, September through December are months with snowfall.
How much does it snow?
Throughout the year, there are 133.6 snowfall days, and 1512mm (59.53") of snow is accumulated.
When is the lowest UV index?
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month in Jonku?
March is the month with the most snowfall in Jonku. Snow falls for 21.3 days and accumulates 284mm (11.18") of snow.
What is the driest month?
The month with the least rainfall is April, when the rain falls for 11 days and typically collects 29mm (1.14") of precipitation.
What is the least humid month in Jonku?
With an average relative humidity of 69%, June is the least humid month.
When are the longest days?
With an average of 22h and 0min of daylight, June has the longest days of the year in Jonku.
What is the warmest month?
Jonku's warmest temperatures are experienced in July, with average high temperatures of 20.7°C (69.3°F) and lows of 11°C (51.8°F).
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 18.2 days and typically aggregates up to 66mm (2.6") of precipitation.
When it does not snow?
In Jonku, snow does not fall in July and August.
What month has the most sunshine?
With an average of 11.5h of sunshine, July has the most sunshine of the year.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 5.
When is Daylight Saving Time (DST)?
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?
December has the shortest days of the year, with an average of 3h and 42min of daylight.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 0.7h of sunshine.
Average temperature
Jonku, Finland
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-7.7°C).
The month with the highest average low temperature is July (11°C).
The coldest month (with the lowest average low temperature) is January (-12.7°C).
Average pressure
Jonku, Finland
- Average pressure in January:
1009.9mbar - Average pressure in February:
1010.3mbar - Average pressure in March:
1008.1mbar - Average pressure in April:
1011.5mbar - Average pressure in May:
1014.1mbar - Average pressure in June:
1010.9mbar
- Average pressure in July:
1010.7mbar - Average pressure in August:
1011.6mbar - Average pressure in September:
1011.2mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1005.7mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).
Average wind speed
Jonku, Finland
- Average wind speed in January:
11.4km/h - Average wind speed in February:
11.7km/h - Average wind speed in March:
11.6km/h - Average wind speed in April:
10.1km/h - Average wind speed in May:
11.2km/h - Average wind speed in June:
10.8km/h
- Average wind speed in July:
9.5km/h - Average wind speed in August:
9.9km/h - Average wind speed in September:
10.9km/h - Average wind speed in October:
10.5km/h - Average wind speed in November:
11.4km/h - Average wind speed in December:
11.6km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest month (with the lowest average wind speed) is July (9.5km/h).
Average humidity
Jonku, Finland
The months with the highest relative humidity are January, February and December (96%).
The month with the lowest relative humidity is June (69%).
Average rainfall
Jonku, Finland
The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days
Jonku, Finland
- Average rainfall days in January:
2.7 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
5.3 days - Average rainfall days in April:
11 days - Average rainfall days in May:
16 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
18.2 days - Average rainfall days in August:
18.6 days - Average rainfall days in September:
15.5 days - Average rainfall days in October:
12 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall
Jonku, Finland
- Average snowfall in January:
252mm - Average snowfall in February:
257mm - Average snowfall in March:
284mm - Average snowfall in April:
126mm - Average snowfall in May:
51mm - Average snowfall in June:
3mm
The month with the highest snowfall is March (284mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Jonku, Finland
- Average snowfall days in January:
22.2 days - Average snowfall days in February:
21.4 days - Average snowfall days in March:
21.3 days - Average snowfall days in April:
15.4 days - Average snowfall days in May:
4.3 days - Average snowfall days in June:
0.4 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.7 days - Average snowfall days in October:
8.3 days - Average snowfall days in November:
16.1 days - Average snowfall days in December:
23.5 days
The month with the highest number of snowfall days is December (23.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Jonku, Finland
- Average daylight in January:
5h and 1min - Average daylight in February:
8h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
15h and 2min - Average daylight in May:
19h and 0min - Average daylight in June:
22h and 0min
- Average daylight in July:
20h and 2min - Average daylight in August:
16h and 4min - Average daylight in September:
13h and 1min - Average daylight in October:
9h and 4min - Average daylight in November:
6h and 1min - Average daylight in December:
3h and 4min
The month with the longest days is June (Average daylight: 22h and 0min).
The month with the shortest days is December (Average daylight: 3h and 42min).
- Average sunshine in January:
1h and 1min - Average sunshine in February:
1h and 5min - Average sunshine in March:
2h and 5min - Average sunshine in April:
4h and 0min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
11h and 3min - Average sunshine in August:
8h and 5min - Average sunshine in September:
5h and 4min - Average sunshine in October:
3h and 2min - Average sunshine in November:
1h and 3min - Average sunshine in December:
0h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days
Jonku, Finland
- Average sunshine days in January:
9.1 days - Average sunshine days in February:
7.3 days - Average sunshine days in March:
8.3 days - Average sunshine days in April:
6.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
10 days - Average sunshine days in September:
11.2 days - Average sunshine days in October:
12 days - Average sunshine days in November:
8.2 days - Average sunshine days in December:
7.3 days
The month with the most sunshine days is October (12 days).
The month with the least sunshine days is April (6.8 days).
Average UV index
Jonku, Finland
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover
Jonku, Finland
The months with the most cloud cover are January and December (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility
Jonku, Finland
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).
