Climate and monthly weather forecastHertsön, Sweden
Climate and monthly weather forecast
Weather in January
January, the same as December, in Hertsön, Sweden, is a freezing cold winter month, with an average temperature varying between -5.7°C (21.7°F) and -9.9°C (14.2°F). In Hertsön, January is the month with the lowest recorded average temperatures, measuring a high of -5.7°C (21.7°F) and a low of -9.9°C (14.2°F). Weather in January »Weather in February
February, the last month of the winter in Hertsön, is another freezing cold month, with temperature in the range of an average high of -5.4°C (22.3°F) and an average low of -10.6°C (12.9°F). February's commencement is accompanied by an average high-temperature of a still freezing cold -5.4°C (22.3°F), diverging marginally from January's -5.7°C (21.7°F). Weather in February »Weather in March
The first month of the spring, March, is still a freezing cold month in Hertsön, Sweden, with an average temperature fluctuating between -1.7°C (28.9°F) and -6.8°C (19.8°F). March witnesses a minor rise in the average high-temperature, transitioning from a freezing cold -5.4°C (22.3°F) in February to a still subzero cold -1.7°C (28.9°F). Weather in March »Weather in April
April is a wintry spring month in Hertsön, Sweden, with an average temperature varying between -1.8°C (28.8°F) and 2.3°C (36.1°F). April's onset witnesses a minor shift in the average high-temperature, moving from a freezing cold -1.7°C (28.9°F) in March to a cold 2.3°C (36.1°F). Weather in April »Weather in May
May, the last month of the spring in Hertsön, is a frosty month, with temperature in the range of an average high of 8.6°C (47.5°F) and an average low of 4°C (39.2°F). As Hertsön transitions into May, a rise in the average high-temperature is observed, moving from an icy 2.3°C (36.1°F) in April to a chilly 8.6°C (47.5°F). Weather in May »Weather in June
June, the first month of the summer in Hertsön, is a refreshing month, with an average temperature ranging between max 13.3°C (55.9°F) and min 8.9°C (48°F). As Hertsön transitions into June, the average high-temperature is observed to slightly rise from a frosty 8.6°C (47.5°F) in May to a mild 13.3°C (55.9°F). Weather in June »Weather in July
July in Hertsön, Sweden, is an enjoyable summer month, with temperature in the range of an average low of 13°C (55.4°F) and an average high of 17.3°C (63.1°F). In Hertsön, July records the highest average temperatures, peaking at 17.3°C (63.1°F) and reaching a low of 13°C (55.4°F). Weather in July »Weather in August
The last month of the summer, August, is another comfortable month in Hertsön, Sweden, with an average temperature ranging between max 16.6°C (61.9°F) and min 12.4°C (54.3°F). The average high-temperature is a still enjoyable 16.6°C (61.9°F) in August, hardly different from the 17.3°C (63.1°F) recorded in July. Weather in August »Weather in September
The first month of the autumn, September, is still a cool month in Hertsön, Sweden, with temperature in the range of an average high of 12.5°C (54.5°F) and an average low of 8.6°C (47.5°F). Hertsön's September weather features a light decline in high-temperatures, reducing from a comfortable 16.6°C (61.9°F) in August to a cool 12.5°C (54.5°F). Weather in September »Weather in October
October, like September, in Hertsön, Sweden, is another cold autumn month, with an average temperature fluctuating between 2.7°C (36.9°F) and 5.7°C (42.3°F). October's arrival coincides with a drop in the average high-temperature, decreasing from September's fresh 12.5°C (54.5°F) to an icy 5.7°C (42.3°F). Weather in October »Weather in November
November, the last month of the autumn in Hertsön, is also a wintry month, with an average temperature ranging between max 1.5°C (34.7°F) and min -1.4°C (29.5°F). The start of November comes with a small reduction in the average high-temperature, subtly receding from an icy 5.7°C (42.3°F) in October to a still cold 1.5°C (34.7°F). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Hertsön, Sweden, with temperature in the range of an average high of -2.1°C (28.2°F) and an average low of -5.7°C (21.7°F). December sees a slight reduction in average high-temperature, with a shift from an icy 1.5°C (34.7°F) in November to a freezing cold -2.1°C (28.2°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hertsön, Sweden
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (-5.7°C).
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure
Hertsön, Sweden
- Average pressure in January:
1009.4mbar - Average pressure in February:
1009.6mbar - Average pressure in March:
1008.1mbar - Average pressure in April:
1011.7mbar - Average pressure in May:
1014mbar - Average pressure in June:
1011.1mbar
- Average pressure in July:
1010.5mbar - Average pressure in August:
1011.1mbar - Average pressure in September:
1010.9mbar - Average pressure in October:
1011.4mbar - Average pressure in November:
1009.2mbar - Average pressure in December:
1004.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed
Hertsön, Sweden
- Average wind speed in January:
15.6km/h - Average wind speed in February:
14.5km/h - Average wind speed in March:
15.2km/h - Average wind speed in April:
13km/h - Average wind speed in May:
13.6km/h - Average wind speed in June:
13.7km/h
- Average wind speed in July:
13.3km/h - Average wind speed in August:
14.7km/h - Average wind speed in September:
16.4km/h - Average wind speed in October:
17.2km/h - Average wind speed in November:
17.2km/h - Average wind speed in December:
17.3km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is April (13km/h).
Average humidity
Hertsön, Sweden
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (70%).
Average rainfall
Hertsön, Sweden
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days
Hertsön, Sweden
- Average rainfall days in January:
3.4 days - Average rainfall days in February:
3.1 days - Average rainfall days in March:
5.8 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall
Hertsön, Sweden
- Average snowfall in January:
174mm - Average snowfall in February:
138mm - Average snowfall in March:
163mm - Average snowfall in April:
69mm - Average snowfall in May:
27mm - Average snowfall in June:
0mm
The month with the highest snowfall is December (178mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Hertsön, Sweden
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
14.2 days - Average snowfall days in March:
14.3 days - Average snowfall days in April:
8.4 days - Average snowfall days in May:
3.3 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:
3.5 days - Average snowfall days in November:
7.2 days - Average snowfall days in December:
15 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hertsön, Sweden
- Average daylight in January:
4h and 54min - Average daylight in February:
8h and 18min - Average daylight in March:
11h and 48min - Average daylight in April:
15h and 24min - Average daylight in May:
19h and 6min - Average daylight in June:
22h and 30min
- Average daylight in July:
20h and 30min - Average daylight in August:
16h and 42min - Average daylight in September:
13h and 6min - Average daylight in October:
9h and 36min - Average daylight in November:
6h and 0min - Average daylight in December:
3h and 30min
The month with the longest days is June (Average daylight: 22h and 30min).
The month with the shortest days is December (Average daylight: 3h and 30min).
- Average sunshine in January:
1h and 42min - Average sunshine in February:
3h and 36min - Average sunshine in March:
4h and 54min - Average sunshine in April:
6h and 18min - Average sunshine in May:
10h and 42min - Average sunshine in June:
12h and 12min
- Average sunshine in July:
12h and 48min - Average sunshine in August:
9h and 54min - Average sunshine in September:
7h and 18min - Average sunshine in October:
4h and 42min - Average sunshine in November:
2h and 42min - Average sunshine in December:
1h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days
Hertsön, Sweden
- Average sunshine days in January:
13.5 days - Average sunshine days in February:
12.6 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
16.5 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
15.6 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
13.7 days - Average sunshine days in December:
11.6 days
The months with the most sunshine days are June and October (16.5 days).
The month with the least sunshine days is December (11.6 days).
Average UV index
Hertsön, Sweden
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
Hertsön, Sweden
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility
Hertsön, Sweden
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (7km).





