October weather forecastHellnar, Iceland
October
Weather in October
October, like September, is another chilly autumn month in Hellnar, Iceland, with an average temperature ranging between min 5.3°C (41.5°F) and max 6.8°C (44.2°F).Temperature
Hellnar's average high-temperature in October is a still frosty 6.8°C (44.2°F), marking an insignificant difference from the 9.5°C (49.1°F) of September. Hellnar encounters a small divergence from daytime high temperatures, averaging a low-temperature of 5.3°C (41.5°F) during October nights.Humidity
The average relative humidity in October is 78%.Rainfall
In October, the rain falls for 19.5 days. Throughout October, 82mm (3.23") of precipitation is accumulated. In Hellnar, during the entire year, the rain falls for 184.8 days and collects up to 827mm (32.56") of precipitation.Snowfall
Months with snowfall in Hellnar are January through May, September through December. In Hellnar, during October, snow falls for 2 days and regularly aggregates up to 17mm (0.67") of snow. In Hellnar, during the entire year, snow falls for 46.9 days and aggregates up to 421mm (16.57") of snow.Daylight
The average length of the day in October is 9h and 40min.On the first day of the month, sunrise is at 07:46 and sunset at 19:02. On the last day of October, sunrise is at 09:20 and sunset at 17:16 GMT.
Sunshine
In Hellnar, the average sunshine in October is 3.7h.UV index
The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during October translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Hellnar, Iceland
- Average high temperature in October: 6.8°C
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).
- Average low temperature in October: 5.3°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 in October
Hellnar, Iceland
- Average pressure in October: 1003.7mbar
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 in October
Hellnar, Iceland
- Average wind speed in October: 30.8km/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 in October
Hellnar, Iceland
- Average humidity in October: 78%
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 in October
Hellnar, Iceland
- Average rainfall in October: 82mm
The wettest month (with the highest rainfall) is January (96mm).
The driest month (with the least rainfall) is June (37mm).
Average rainfall days in October
Hellnar, Iceland
- Average rainfall days in October: 19.5 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 in October
Hellnar, Iceland
- Average snowfall in October: 17mm
The month with the highest snowfall is March (99mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in October
Hellnar, Iceland
- Average snowfall days in October: 2 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 in October /
Average sunshine in October
Hellnar, Iceland
- Average daylight in October: 9h and 42min
The month with the longest days is June (Average daylight: 21h and 24min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in October: 3h and 42min
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 in October
Hellnar, Iceland
- Average sunshine days in October: 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 in October
Hellnar, Iceland
- Average UV index in October: 2
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 in October
Hellnar, Iceland
- Average cloud cover in October: 68
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 in October
Hellnar, Iceland
- Average visibility in October: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (8km).
