October weather forecastStykkishólmur, Iceland
October
Weather in October
October presents a significant seasonal shift in Stykkishólmur's weather to colder autumn days. There is a noticeable drop in temperature from the previous month, and the city starts to experience the first signs of snow—signalling winter's impending arrival. Strong winds resurface, with an average speed of 21.7km/h (13.5mph). As nature prepares for the icy grip, the once lush vegetation starts to wither, casting a unique charm on the city. October weathers can be harsh, but it's the perfect time to experience Iceland's authenticity and diverse landscapes.Temperature
A mild shift in the average high-temperature occurs in October, reducing from a frosty 8.5°C (47.3°F) in September to an icy 5°C (41°F). Stykkishólmur sees a minor drop to an average minimum temperature of 2.7°C (36.9°F) during the night in the month of October.Humidity
January, February and October, with an average relative humidity of 83%, are the most humid months.Rainfall
In Stykkishólmur, in October, it is raining for 15.7 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 139.6 rainfall days, and 351mm (13.82") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 4.2 snowfall days, it receives 10mm (0.39") of snow. In Stykkishólmur, during the entire year, snow falls for 64.8 days and aggregates up to 403mm (15.87") of snow.Sea temperature
In Stykkishólmur, the average seawater temperature in October is 7.2°C (45°F).Note: Swimming in 7.2°C (45°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Stykkishólmur, the average length of the day in October is 9h and 38min.On the first day of October in Stykkishólmur, sunrise is at 07:42 and sunset at 18:58. On the last day of the month, sunrise is at 09:18 and sunset at 17:10 GMT.
Sunshine
The average sunshine in October is 3.8h.UV index
January, February, April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Stykkishólmur. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In October, the maximum UV index of 1 transforms into these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Stykkishólmur, Iceland
- Average high temperature in October: 5°C
The warmest month (with the highest average high temperature) is July (12.1°C).
The month with the lowest average high temperature is December (0.7°C).
- Average low temperature in October: 2.7°C
The month with the highest average low temperature is July (8.3°C).
The coldest months (with the lowest average low temperature) are February and December (-1.8°C).
Average pressure in October
Stykkishólmur, Iceland
- Average pressure in October: 1004.1mbar
The month with the highest atmospheric pressure is June (1014.1mbar).
The month with the lowest atmospheric pressure is January (996.7mbar).
Average wind speed in October
Stykkishólmur, Iceland
- Average wind speed in October: 21.7km/h
The windiest month (with the highest average wind speed) is February (25.9km/h).
The calmest month (with the lowest average wind speed) is June (14.6km/h).
Average humidity in October
Stykkishólmur, Iceland
- Average humidity in October: 83%
The months with the highest relative humidity are January, February and October (83%).
The month with the lowest relative humidity is May (77%).
Average rainfall in October
Stykkishólmur, Iceland
- Average rainfall in October: 30mm
The wettest month (with the highest rainfall) is January (40mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in October
Stykkishólmur, Iceland
- Average rainfall days in October: 15.7 days
The month with the highest number of rainy days is October (15.7 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in October
Stykkishólmur, Iceland
- Average snowfall in October: 10mm
The month with the highest snowfall is March (97mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in October
Stykkishólmur, Iceland
- Average snowfall days in October: 4.2 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in October
Stykkishólmur, Iceland
- Average sea temperature in October: 7.2°C
The best month for swimming (with the highest average sea temperature) is August (10.3°C).
The coldest month (with the lowest average sea temperature) is March (2.1°C).
Average daylight in October /
Average sunshine in October
Stykkishólmur, Iceland
- Average daylight in October: 9h and 36min
The month with the longest days is June (Average daylight: 21h and 42min).
The month with the shortest days is December (Average daylight: 3h and 48min).
- Average sunshine in October: 3h and 48min
The month with the most sunshine is May (Average sunshine: 7h and 18min).
The month with the least sunshine is June (Average sunshine: 0h and 48min).
Average sunshine days in October
Stykkishólmur, Iceland
- Average sunshine days in October: 10.1 days
The months with the most sunshine days are June and July (16.8 days).
The month with the least sunshine days is March (9.1 days).
Average UV index in October
Stykkishólmur, Iceland
- Average UV index in October: 1
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, April, October, November and December (UV index 1).
Average cloud cover in October
Stykkishólmur, Iceland
- Average cloud cover in October: 67
The month with the most cloud cover is March (Cloud cover 72).
The months with the least cloud cover are May and June (Cloud cover 61).
Average visibility in October
Stykkishólmur, Iceland
- Average visibility in October: 9km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March, April, May, August, September, October, November and December (9km).
