Climate and monthly weather forecastHellissandur, Iceland
Climate and monthly weather forecast
Weather in January
January, like December, in Hellissandur, Iceland, is a wintry winter month, with temperature in the range of an average low of 1.4°C (34.5°F) and an average high of 3.8°C (38.8°F). Hellissandur's weather, upon January's arrival, documents an average high-temperature of a still wintry 3.8°C (38.8°F), nearly the same as the prior month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Hellissandur, Iceland, with temperature in the range of an average high of 3.6°C (38.5°F) and an average low of 1.1°C (34°F). With the advent of February, Hellissandur's high-temperatures adjust to a still wintry 3.6°C (38.5°F), closely aligning with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Hellissandur, is also an icy month, with an average temperature varying between 0.8°C (33.4°F) and 3.3°C (37.9°F). The coldest month is March, with an average high-temperature of 3.3°C (37.9°F) and an average low-temperature of 0.8°C (33.4°F). Weather in March »Weather in April
April, the same as March, is another cold spring month in Hellissandur, Iceland, with temperature in the range of an average high of 4.5°C (40.1°F) and an average low of 2.3°C (36.1°F). Hellissandur, Iceland, records an average high-temperature of a still icy 4.5°C (40.1°F) as April arrives, nearly mirroring the previous month's climate. Weather in April »Weather in May
The last month of the spring, May, is a frosty month in Hellissandur, Iceland, with an average temperature varying between 6.8°C (44.2°F) and 4.3°C (39.7°F). As Hellissandur, Iceland, transitions into May, the average high-temperature stands at a frosty 6.8°C (44.2°F), offering little variation from the preceding month. Weather in May »Weather in June
June, the first month of the summer in Hellissandur, is still a chilly month, with an average temperature varying between 7.3°C (45.1°F) and 9.4°C (48.9°F). Entering June, Hellissandur's average high-temperature reads a still frosty 9.4°C (48.9°F), indicating a close resemblance to the previous month's climate. Weather in June »Weather in July
July is a fresh summer month in Hellissandur, Iceland, with an average temperature varying between 11.2°C (52.2°F) and 9.3°C (48.7°F). Hellissandur observes a minor difference in average high-temperatures between June's 9.4°C (48.9°F) and July's 11.2°C (52.2°F). Weather in July »Weather in August
August, the last month of the summer in Hellissandur, is another cool month, with an average temperature ranging between min 9.3°C (48.7°F) and max 11.3°C (52.3°F). August, noted for its average high-temperature of 11.3°C (52.3°F) and an average low-temperature of 9.3°C (48.7°F), is considered the warmest month. Weather in August »Weather in September
September, the first month of the autumn in Hellissandur, is still a chilly month, with an average temperature fluctuating between 9.5°C (49.1°F) and 7.8°C (46°F). Hellissandur, Iceland, marks the onset of September with an average high-temperature of a frosty 9.5°C (49.1°F), subtly divergent from August's 11.3°C (52.3°F). Weather in September »Weather in October
October, like September, is another chilly autumn month in Hellissandur, Iceland, with an average temperature fluctuating between 6.8°C (44.2°F) and 5.3°C (41.5°F). With the onset of October, the average high-temperature registers at a still frosty 6.8°C (44.2°F), subtly different from September's 9.5°C (49.1°F). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Hellissandur, Iceland, with an average temperature fluctuating between 5.2°C (41.4°F) and 3°C (37.4°F). The transition into November is marked with an average high-temperature of an icy 5.2°C (41.4°F), showing an insignificant shift from October's 6.8°C (44.2°F). Weather in November »Weather in December
December, the first month of the winter in Hellissandur, is also an icy month, with an average temperature ranging between min 1.6°C (34.9°F) and max 3.8°C (38.8°F). Hellissandur's shift into December sets the average high-temperature at a still icy 3.8°C (38.8°F), a figure that deviates only slightly from November's 5.2°C (41.4°F). Weather in December »Updated: Feb 10, 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
January is the month with the most rainfall in Hellissandur. Rain falls for 15.5 days and accumulates 96mm (3.78") of precipitation.
In Hellissandur, Iceland, during the entire year, the rain falls for 184.8 days and collects up to 827mm (32.56") of precipitation.
Months with snowfall are January through May, September through December.
Throughout the year, there are 46.9 snowfall days, and 421mm (16.57") of snow is accumulated.
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Hellissandur.
March, having an average high-temperature of 3.3°C (37.9°F) and an average low-temperature of 0.8°C (33.4°F), is the coldest month.
March and December, with an average relative humidity of 75%, are the least humid months in Hellissandur.
March is the month with the most snowfall in Hellissandur. Snow falls for 9.8 days and accumulates 99mm (3.9") of snow.
June and July, with an average relative humidity of 82%, are most humid months.
June is the month with the least rainfall. Rain falls for 13.4 days and accumulates 37mm (1.46") of precipitation.
In Hellissandur, Iceland, snow does not fall in June through August.
June has the longest days of the year in Hellissandur, with an average of 21h and 36min of daylight.
The month with the least sunshine in Hellissandur is June, with an average of 0.9h of sunshine.
The month with the highest UV index in Hellissandur, Iceland, is July, with an average maximum UV index of 4.
August stands out as Hellissandur's warmest month, with an average high-temperature of 11.3°C (52.3°F) and a low-temperature of 9.3°C (48.7°F).
With an average of 7.8h of sunshine, August has the most sunshine of the year.
The month with the shortest days in Hellissandur is December, with an average of 3h and 54min of daylight.
Hellissandur does not observe Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Hellissandur, Iceland
The warmest month (with the highest average high temperature) is August (11.3°C).
The month with the lowest average high temperature is March (3.3°C).
The months with the highest average low temperature are July and August (9.3°C).
The coldest month (with the lowest average low temperature) is March (0.8°C).
Average pressure
Hellissandur, Iceland
- Average pressure in January:
996.1mbar - Average pressure in February:
997.5mbar - Average pressure in March:
1003.1mbar - Average pressure in April:
1008.6mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1014.1mbar
- Average pressure in July:
1010.2mbar - Average pressure in August:
1008.3mbar - Average pressure in September:
1002.6mbar - Average pressure in October:
1003.7mbar - Average pressure in November:
1001.7mbar - Average pressure in December:
998.4mbar
The month with the highest atmospheric pressure is June (1014.1mbar).
The month with the lowest atmospheric pressure is January (996.1mbar).
Average wind speed
Hellissandur, Iceland
- Average wind speed in January:
35.7km/h - Average wind speed in February:
36.4km/h - Average wind speed in March:
33.8km/h - Average wind speed in April:
29.3km/h - Average wind speed in May:
24.7km/h - Average wind speed in June:
19.4km/h
- Average wind speed in July:
20.2km/h - Average wind speed in August:
21.7km/h - Average wind speed in September:
26.8km/h - Average wind speed in October:
30.8km/h - Average wind speed in November:
33.2km/h - Average wind speed in December:
36.3km/h
The windiest month (with the highest average wind speed) is February (36.4km/h).
The calmest month (with the lowest average wind speed) is June (19.4km/h).
Average humidity
Hellissandur, Iceland
The months with the highest relative humidity are June and July (82%).
The months with the lowest relative humidity are March and December (75%).
Average rainfall
Hellissandur, Iceland
The wettest month (with the highest rainfall) is January (96mm).
The driest month (with the least rainfall) is June (37mm).
Average rainfall days
Hellissandur, Iceland
- Average rainfall days in January:
15.5 days - Average rainfall days in February:
12.2 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
19.9 days - Average rainfall days in October:
19.5 days - Average rainfall days in November:
16.6 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is February (12.2 days).
Average snowfall
Hellissandur, Iceland
The month with the highest snowfall is March (99mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days
Hellissandur, Iceland
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
5.5 days - Average snowfall days in May:
1.6 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:
0.2 days - Average snowfall days in October:
2 days - Average snowfall days in November:
4.4 days - Average snowfall days in December:
6.8 days
The month with the highest number of snowfall days is March (9.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Hellissandur, Iceland
- Average daylight in January:
5h and 18min - Average daylight in February:
8h and 30min - Average daylight in March:
11h and 48min - Average daylight in April:
15h and 18min - Average daylight in May:
18h and 48min - Average daylight in June:
21h and 36min
- Average daylight in July:
20h and 0min - Average daylight in August:
16h and 30min - Average daylight in September:
13h and 0min - Average daylight in October:
9h and 36min - Average daylight in November:
6h and 18min - Average daylight in December:
3h and 54min
The month with the longest days is June (Average daylight: 21h and 36min).
The month with the shortest days is December (Average daylight: 3h and 54min).
- Average sunshine in January:
2h and 6min - Average sunshine in February:
2h and 48min - Average sunshine in March:
3h and 54min - Average sunshine in April:
5h and 18min - Average sunshine in May:
7h and 18min - Average sunshine in June:
0h and 54min
- Average sunshine in July:
5h and 30min - Average sunshine in August:
7h and 48min - Average sunshine in September:
4h and 36min - Average sunshine in October:
3h and 42min - Average sunshine in November:
2h and 12min - Average sunshine in December:
2h and 36min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 54min).
Average sunshine days
Hellissandur, Iceland
- Average sunshine days in January:
4.7 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
5.8 days - Average sunshine days in April:
7.6 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
8.5 days - Average sunshine days in October:
7.5 days - Average sunshine days in November:
7.5 days - Average sunshine days in December:
7.5 days
The month with the most sunshine days is July (14.2 days).
The month with the least sunshine days is January (4.7 days).
Average UV index
Hellissandur, Iceland
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Hellissandur, Iceland
The month with the most cloud cover is March (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 56).
Average visibility
Hellissandur, Iceland
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (8km).
