Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The arrival of October in Reykjavík signals a subtle shift in temperature, down from 9.6°C (49.3°F) in September to a still frosty 6.2°C (43.2°F). An average low-temperature of 3.2°C (37.8°F) is witnessed throughout the month of October, a mere drop from the daytime peak.Humidity
In October, the average relative humidity in Reykjavík is 81%.Rainfall
In October, the rain falls for 14.3 days. Throughout October, 37mm (1.46") of precipitation is accumulated. Throughout the year, there are 166.2 rainfall days, and 416mm (16.38") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Reykjavík. Throughout October, in the average 0.6 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, in Reykjavík, there are 41.1 snowfall days, and 309mm (12.17") of snow is accumulated.Sea temperature
In Reykjavík, the average seawater temperature in October is 8.2°C (46.8°F).Note: Swimming in 8.2°C (46.8°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.
Daylight
In October, the average length of the day is 9h and 44min.On the first day of October, sunrise is at 07:38 and sunset at 18:55. On the last day of the month, sunrise is at 09:09 and sunset at 17:12 GMT.
Sunshine
In October, the average sunshine is 4.2h.UV index
In Reykjavík, Iceland, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, the maximum UV index of 2 translates into these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
How cold does it get in Reykjavík in October?
What is the average humidity in October in Reykjavík?
How much does it rain in Reykjavík in October?
When does it start to snow in Reykjavík?
What is the sea water temperature in October in Reykjavík?
How many hours of daylight does Reykjavík have in October?
When is the sunrise / sunset in October in Reykjavík?
How long on average sun shines in October in Reykjavík?
What is the UV index intensity in October in Reykjavík?
Average temperature in October
Reykjavík, Iceland
- Average high temperature in October: 6.2°C
The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is December (1.3°C).
- Average low temperature in October: 3.2°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).
Average pressure in October
Reykjavík, Iceland
- Average pressure in October: 1003.6mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).
Average wind speed in October
Reykjavík, Iceland
- Average wind speed in October: 21.5km/h
The windiest month (with the highest average wind speed) is February (24.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity in October
Reykjavík, Iceland
- Average humidity in October: 81%
The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).
Average rainfall in October
Reykjavík, Iceland
- Average rainfall in October: 37mm
The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).
Average rainfall days in October
Reykjavík, Iceland
- Average rainfall days in October: 14.3 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is December (9.7 days).
Average snowfall in October
Reykjavík, Iceland
- Average snowfall in October: 3mm
The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in October
Reykjavík, Iceland
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is March (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in October
Reykjavík, Iceland
- Average sea temperature in October: 8.2°C
The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).
Average daylight in October /
Average sunshine in October
Reykjavík, Iceland
- Average daylight in October: 9h and 4min
The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in October: 4h and 1min
The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in October
Reykjavík, Iceland
- Average sunshine days in October: 13.3 days
The month with the most sunshine days is December (14.1 days).
The month with the least sunshine days is September (8.8 days).
Average UV index in October
Reykjavík, 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 November (UV index 1).
Average cloud cover in October
Reykjavík, Iceland
- Average cloud cover in October: 63
The months with the most cloud cover are March and April (Cloud cover 68).
The months with the least cloud cover are August and December (Cloud cover 60).
Average visibility in October
Reykjavík, 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, April, May, July, August, September, October, November and December (9km).
Reykjavík, Iceland
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