Climate and monthly weather forecastKarlby, Finland
Climate and monthly weather forecast
Weather in January
January, like December, in Karlby, Finland, is another cold winter month, with an average temperature varying between 1.2°C (34.2°F) and -1°C (30.2°F). As Karlby steps into January, the average high-temperature is measured at a still wintry 1.2°C (34.2°F), displaying minor differences from December's 3.5°C (38.3°F). Weather in January »Weather in February
February, the last month of the winter in Karlby, is also a wintry month, with temperature in the range of an average high of 0.3°C (32.5°F) and an average low of -1.7°C (28.9°F). February, recording an average high temperature of 0.3°C (32.5°F) and a low temperature of -1.7°C (28.9°F), is Karlby's coldest month. Weather in February »Weather in March
The first month of the spring, March, is still a cold month in Karlby, Finland, with an average temperature fluctuating between 1.3°C (34.3°F) and -1.1°C (30°F). With the onset of March, the average high-temperature stands at a still wintry 1.3°C (34.3°F), closely aligned with February's 0.3°C (32.5°F). Weather in March »Weather in April
April, the same as March, is an icy spring month in Karlby, Finland, with temperature in the range of an average high of 3.9°C (39°F) and an average low of 1.9°C (35.4°F). The shift into April uncovers an average high-temperature of a still cold 3.9°C (39°F), subtly different from the previous month. Weather in April »Weather in May
The last month of the spring, May, is a frosty month in Karlby, Finland, with an average temperature ranging between max 8.5°C (47.3°F) and min 6.3°C (43.3°F). The shift from April to May is marked by a slight increase in the average high-temperature, moving from a wintry 3.9°C (39°F) to a frosty 8.5°C (47.3°F). Weather in May »Weather in June
June, the first month of the summer in Karlby, is a mild month, with an average temperature fluctuating between 10.9°C (51.6°F) and 13.1°C (55.6°F). June's arrival is noted with a slight increase in the average high-temperature, moving from a frosty 8.5°C (47.3°F) in May to a moderate 13.1°C (55.6°F). Weather in June »Weather in July
July is a refreshing summer month in Karlby, Finland, with temperature in the range of an average high of 17.1°C (62.8°F) and an average low of 15.4°C (59.7°F). July introduces a minor temperature shift, with average high-temperatures adjusting from June's moderate 13.1°C (55.6°F) to a still refreshing 17.1°C (62.8°F). Weather in July »Weather in August
The last month of the summer, August, is also an enjoyable month in Karlby, Finland, with an average temperature fluctuating between 18.1°C (64.6°F) and 16.3°C (61.3°F). August, marked by an average high-temperature of 18.1°C (64.6°F) and a low-temperature of 16.3°C (61.3°F), is the warmest month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderate month in Karlby, Finland, with an average temperature varying between 14.9°C (58.8°F) and 13.2°C (55.8°F). September signifies a gentle decline in Karlby's average high-temperature, easing from a comfortable 18.1°C (64.6°F) in August to a mild 14.9°C (58.8°F). Weather in September »Weather in October
October, like September, is another chilly autumn month in Karlby, Finland, with an average temperature ranging between min 7.9°C (46.2°F) and max 9.7°C (49.5°F). Transition into October marks a drop in the average high-temperature, moving from a refreshing 14.9°C (58.8°F) in September to a chilly 9.7°C (49.5°F). Weather in October »Weather in November
November, the last month of the autumn in Karlby, is another chilly month, with an average temperature varying between 4.8°C (40.6°F) and 6.7°C (44.1°F). Karlby signifies an average high-temperature of a still chilly 6.7°C (44.1°F) in November, closely mirroring the 9.7°C (49.5°F) of October. Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Karlby, Finland, with an average temperature varying between 1.7°C (35.1°F) and 3.5°C (38.3°F). In Karlby, entering December brings a subtle temperature decrement, reducing from November's chilly 6.7°C (44.1°F) to a wintry 3.5°C (38.3°F). Weather in December »Updated: Aug 16, 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
In Karlby, during the entire year, the rain falls for 132.5 days and collects up to 310mm (12.2") of precipitation.
January through May, October through December are months with snowfall.
The month with the most snowfall is January, when snow falls for 10.3 days and typically aggregates up to 41mm (1.61") of snow.
Throughout the year, there are 38.5 snowfall days, and 160mm (6.3") of snow is accumulated.
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index.
February, noted for its average high-temperature of 0.3°C (32.5°F) and an average low-temperature of -1.7°C (28.9°F), is considered the coldest month.
The months with the highest humidity are February and March, with an average relative humidity of 84%.
April is the month with the least rainfall. Rain falls for 8.8 days and accumulates 12mm (0.47") of precipitation.
June through September are months without snowfall.
June has the longest days of the year, with an average of 18h and 42min of daylight.
With an average of 12h of sunshine, July has the most sunshine of the year.
With an average maximum UV index of 5, July is the month with the highest UV index.
August proves to be the warmest month, recording an average peak temperature of 18.1°C (64.6°F) and a minimum temperature of 16.3°C (61.3°F).
The months with the lowest humidity in Karlby are August through October, with an average relative humidity of 78%.
The month with the most rainfall is September, when the rain falls for 14.2 days and typically aggregates up to 38mm (1.5") of precipitation.
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends in Karlby, 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 6h and 6min of daylight, December has the shortest days of the year.
With an average of 2h of sunshine, December has the least sunshine of the year.
Average temperature
Karlby, Finland
The warmest month (with the highest average high temperature) is August (18.1°C).
The month with the lowest average high temperature is February (0.3°C).
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-1.7°C).
Average pressure
Karlby, Finland
- Average pressure in January:
1011.2mbar - Average pressure in February:
1011.8mbar - Average pressure in March:
1011.5mbar - Average pressure in April:
1014mbar - Average pressure in May:
1015mbar - Average pressure in June:
1012.5mbar
- Average pressure in July:
1011.2mbar - Average pressure in August:
1013mbar - Average pressure in September:
1013.3mbar - Average pressure in October:
1014mbar - Average pressure in November:
1011.3mbar - Average pressure in December:
1007.8mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed
Karlby, Finland
- Average wind speed in January:
31.3km/h - Average wind speed in February:
28.3km/h - Average wind speed in March:
26.9km/h - Average wind speed in April:
23.7km/h - Average wind speed in May:
21.3km/h - Average wind speed in June:
21.3km/h
- Average wind speed in July:
21.2km/h - Average wind speed in August:
22.6km/h - Average wind speed in September:
26.4km/h - Average wind speed in October:
29.6km/h - Average wind speed in November:
31.1km/h - Average wind speed in December:
34.1km/h
The windiest month (with the highest average wind speed) is December (34.1km/h).
The calmest month (with the lowest average wind speed) is July (21.2km/h).
Average humidity
Karlby, Finland
The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August, September and October (78%).
Average rainfall
Karlby, Finland
The wettest month (with the highest rainfall) is September (38mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days
Karlby, Finland
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
9.7 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
14 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Karlby, Finland
The month with the highest snowfall is January (41mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Karlby, Finland
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2 days - Average snowfall days in May:
0.6 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:
0.4 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Karlby, Finland
- Average daylight in January:
6h and 54min - 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 42min
- Average daylight in July:
17h and 54min - 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 36min - Average daylight in December:
6h and 6min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in January:
2h and 18min - Average sunshine in February:
3h and 18min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 36min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 6min - Average sunshine in October:
4h and 24min - Average sunshine in November:
3h and 12min - Average sunshine in December:
2h
The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 2h).
Average sunshine days
Karlby, Finland
- Average sunshine days in January:
11.7 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
17.8 days - Average sunshine days in May:
19.3 days - Average sunshine days in June:
17.6 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
13 days - Average sunshine days in September:
12.9 days - Average sunshine days in October:
12.5 days - Average sunshine days in November:
9.7 days - Average sunshine days in December:
8.9 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is December (8.9 days).
Average UV index
Karlby, Finland
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover
Karlby, Finland
The months with the most cloud cover are January and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility
Karlby, 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).
