Climate and monthly weather forecastJomala, Finland
Climate and monthly weather forecast
Weather in January
January, like December, in Jomala, Finland, is another cold winter month, with an average temperature varying between -0.8°C (30.6°F) and 1.3°C (34.3°F). January reports an average high-temperature of a still wintry 1.3°C (34.3°F), slightly varied from December's 3.5°C (38.3°F). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Jomala, Finland, with an average temperature ranging between max 0.5°C (32.9°F) and min -1.5°C (29.3°F). Temperature readings reach their annual highs in February, averaging 0.5°C (32.9°F) and a minimum average of -1.5°C (29.3°F). Weather in February »Weather in March
March, the first month of the spring in Jomala, is also an icy month, with an average temperature fluctuating between 1.7°C (35.1°F) and -0.7°C (30.7°F). Entering March, the average high-temperature is recorded at a still wintry 1.7°C (35.1°F), exhibiting a minimal shift from February's 0.5°C (32.9°F). Weather in March »Weather in April
April, the same as March, is another cold spring month in Jomala, Finland, with an average temperature varying between 2.2°C (36°F) and 4.3°C (39.7°F). The commencement of April records an average high-temperature of a still wintry 4.3°C (39.7°F), barely varying from March's 1.7°C (35.1°F). Weather in April »Weather in May
May, the last month of the spring in Jomala, is a chilly month, with an average temperature varying between 6.3°C (43.3°F) and 8.3°C (46.9°F). The shift into May brings a slight increase in the average high-temperature, moving from a cold 4.3°C (39.7°F) in April to a chilly 8.3°C (46.9°F). Weather in May »Weather in June
The first month of the summer, June, is a fresh month in Jomala, Finland, with an average temperature fluctuating between 12.9°C (55.2°F) and 10.7°C (51.3°F). With the onset of June, Jomala's average high-temperature sees a modest rise, moving from May's frosty 8.3°C (46.9°F) to a fresh 12.9°C (55.2°F). Weather in June »Weather in July
July is an enjoyable summer month in Jomala, Finland, with an average temperature ranging between max 17.2°C (63°F) and min 15.2°C (59.4°F). Jomala in July denotes a subtle temperature transition, adjusting from an average high of a fresh 12.9°C (55.2°F) in June to an enjoyable 17.2°C (63°F). Weather in July »Weather in August
The last month of the summer, August, is also an enjoyable month in Jomala, Finland, with an average temperature ranging between max 17.6°C (63.7°F) and min 15.9°C (60.6°F). August temperatures tend to peak at an average high of 17.6°C (63.7°F) and dip to a low of 15.9°C (60.6°F). Weather in August »Weather in September
The first month of the autumn, September, is still a mild month in Jomala, Finland, with an average temperature ranging between min 12.7°C (54.9°F) and max 14.5°C (58.1°F). Jomala, Finland, observes a small decrease in the average high-temperature with the arrival of September, falling from August's enjoyable 17.6°C (63.7°F) to a mild 14.5°C (58.1°F). Weather in September »Weather in October
October, the same as September, in Jomala, Finland, is another chilly autumn month, with an average temperature fluctuating between 9.6°C (49.3°F) and 7.8°C (46°F). The transition into October involves a small decrease in the average high-temperature, dipping slightly from a moderate 14.5°C (58.1°F) in September to a chilly 9.6°C (49.3°F). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Jomala, Finland, with temperature in the range of an average low of 4.6°C (40.3°F) and an average high of 6.3°C (43.3°F). As November commences, the average high-temperature subtly reduces, transitioning from a chilly 9.6°C (49.3°F) in October to a still frosty 6.3°C (43.3°F). Weather in November »Weather in December
December, the first month of the winter in Jomala, is also an icy month, with an average temperature fluctuating between 1.3°C (34.3°F) and 3.5°C (38.3°F). As Jomala welcomes December, the average high-temperature is noted at a cold 3.5°C (38.3°F), closely aligning with the preceding month. Weather in December »Updated: Jan 31, 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
Throughout the year, in Jomala, Finland, there are 116.3 rainfall days, and 274mm (10.79") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
January is the month with the most snowfall in Jomala. Snow falls for 10.1 days and accumulates 44mm (1.73") of snow.
Throughout the year, in Jomala, Finland, there are 40.1 snowfall days, and 160mm (6.3") of snow is accumulated.
January and December, with an average of 2.2h of sunshine, are months with the least sunshine in Jomala, Finland.
January through March, with an average maximum UV index of 1, are months with the lowest UV index in Jomala, Finland.
February, with its high-temperature average of 0.5°C (32.9°F) and a low-temperature average of -1.5°C (29.3°F), is the coldest month in Jomala, Finland.
February is the most humid month, with an average relative humidity of 84%.
The month with the least rainfall in Jomala is April, when the rain falls for 7.4 days and typically collects 11mm (0.43") of precipitation.
June through September are months without snowfall.
June has the longest days of the year in Jomala, Finland, with an average of 18h and 48min of daylight.
With an average of 12h of sunshine, July has the most sunshine of the year.
The month with the highest UV index in Jomala is July, with an average maximum UV index of 5.
Jomala, Finland, registers the average highest temperatures during August, with peaks of 17.6°C (63.7°F) and lows of 15.9°C (60.6°F).
The months with the lowest humidity are August and October, with an average relative humidity of 78%.
The month with the most rainfall in Jomala is October, when the rain falls for 13.8 days and typically aggregates up to 32mm (1.26") 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.
The month with the shortest days is December, with an average of 6h and 0min of daylight.
Average temperature
Jomala, Finland
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (0.5°C).
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-1.5°C).
Average pressure
Jomala, Finland
- Average pressure in January:
1010.9mbar - Average pressure in February:
1011.4mbar - Average pressure in March:
1011.4mbar - Average pressure in April:
1013.9mbar - Average pressure in May:
1014.9mbar - Average pressure in June:
1012.5mbar
- Average pressure in July:
1011.1mbar - Average pressure in August:
1012.7mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1013.8mbar - Average pressure in November:
1010.9mbar - Average pressure in December:
1007.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed
Jomala, Finland
- Average wind speed in January:
30.1km/h - Average wind speed in February:
26.6km/h - Average wind speed in March:
25.7km/h - Average wind speed in April:
22.6km/h - Average wind speed in May:
20.8km/h - Average wind speed in June:
20.2km/h
- Average wind speed in July:
20km/h - Average wind speed in August:
22km/h - Average wind speed in September:
25.1km/h - Average wind speed in October:
28.1km/h - Average wind speed in November:
29km/h - Average wind speed in December:
31.7km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is July (20km/h).
Average humidity
Jomala, Finland
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and October (78%).
Average rainfall
Jomala, Finland
The wettest month (with the highest rainfall) is October (32mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days
Jomala, Finland
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
7 days - Average rainfall days in April:
7.4 days - Average rainfall days in May:
9 days - Average rainfall days in June:
9.9 days
- Average rainfall days in July:
12.5 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
11.8 days - Average rainfall days in December:
8.8 days
The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall
Jomala, Finland
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Jomala, Finland
- Average snowfall days in January:
10.1 days - Average snowfall days in February:
9.2 days - Average snowfall days in March:
7.7 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.7 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jomala, Finland
- Average daylight in January:
6h and 48min - Average daylight in February:
9h and 12min - Average daylight in March:
11h and 48min - Average daylight in April:
14h and 36min - Average daylight in May:
17h and 12min - Average daylight in June:
18h and 48min
- Average daylight in July:
18h and 0min - 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:
6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in January:
2h and 12min - Average sunshine in February:
3h and 24min - Average sunshine in March:
5h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 24min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
10h and 24min - Average sunshine in September:
7h and 48min - Average sunshine in October:
4h and 24min - Average sunshine in November:
3h and 6min - Average sunshine in December:
2h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).
Average sunshine days
Jomala, Finland
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
13 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
19.2 days - Average sunshine days in May:
20.5 days - Average sunshine days in June:
18.5 days
- Average sunshine days in July:
16.1 days - Average sunshine days in August:
14 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
11.1 days
The month with the most sunshine days is May (20.5 days).
The month with the least sunshine days is December (11.1 days).
Average UV index
Jomala, Finland
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).
Average cloud cover
Jomala, 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 35).
Average visibility
Jomala, Finland
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
