October weather forecast
Geysir, Iceland

October

Weather in October

October brings a distinct autumnal chill to Geysir's air, preparing for winter’s eminent return. The weather gets colder, as the mercury dips to approximately 2.8°C (37°F) during the day. Snow begins to appear prominently on the forecast, with 53mm (2.09") on average. Despite the creeping cold, nature presents a stunning spectacle with fall colors lighting up the landscape. It’s an excellent time for taking scenic drives or brisk walks amongst the golden foliage.

Temperature

During the shift to October, a minor reduction in average high-temperature is observed, shifting from a chilly 6.8°C (44.2°F) in September to a cold 2.8°C (37°F). Geysir's nights in October maintain a consistent average of -0.9°C (30.4°F), demonstrating a minimal differential from its daytime temperature.

Humidity

The average relative humidity in October in Geysir is 87%.

Rainfall

In Geysir, in October, during 19.4 rainfall days, 95mm (3.74") of precipitation is typically accumulated. Throughout the year, there are 201.7 rainfall days, and 1100mm (43.31") of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Geysir, during October, snow falls for 6.3 days and regularly aggregates up to 53mm (2.09") of snow. Throughout the year, there are 98.9 snowfall days, and 1660mm (65.35") of snow is accumulated.

Daylight

The average length of the day in October is 9h and 43min.
On the first day of the month, sunrise is at 07:32 and sunset at 18:49. On the last day of October, sunrise is at 09:04 and sunset at 17:05 GMT.

Sunshine

In Geysir, the average sunshine in October is 4.5h.

UV index

The months with the lowest UV index in Geysir are October and November, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 1 in October translates into these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is it in October?
The high-temperature during October is 2.8°C (37°F) and the low-temperature is -0.9°C (30.4°F).
What is the average humidity in October in Geysir?
In October, the average relative humidity is 87%.
How many days does it rain in October?
In Geysir, in October, it is raining for 19.4 days, with typically 95mm (3.74") of accumulated precipitation.
How many days does it snow in October in Geysir?
In Geysir, during October, snow falls for 6.3 days and regularly aggregates up to 53mm (2.09") of snow.
How many hours of daylight does Geysir have in October?
The average day length in October is 9h and 43min.
When are sunrise and sunset in October in Geysir?
In October, on the first day of the month, sunrise is at 07:32 and sunset at 18:49. On the last day of the month, sunrise is at 09:04 and sunset at 17:05 GMT.
How long on average sun shines in October?
In October, the average sunshine duration in Geysir is 4.5h.
When is the lowest UV index?
The months with the lowest UV index are October and November, with an average maximum UV index of 1.
What is the UV index reading in October in Geysir?
In October, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in October - Geysir, Iceland
Average temperature in October
Geysir, Iceland
  • Average high temperature in October: 2.8°C

The warmest month (with the highest average high temperature) is July (11.3°C).
The month with the lowest average high temperature is December (-2.6°C).

  • Average low temperature in October: -0.9°C

The month with the highest average low temperature is July (5.9°C).
The coldest month (with the lowest average low temperature) is December (-7.6°C).

Average pressure in October - Geysir, Iceland
Average pressure in October
Geysir, Iceland
  • Average pressure in October: 1004.2mbar

The month with the highest atmospheric pressure is June (1013.9mbar).
The month with the lowest atmospheric pressure is January (997.4mbar).

Average wind speed in October - Geysir, Iceland
Average wind speed in October
Geysir, Iceland
  • Average wind speed in October: 16.9km/h

The windiest month (with the highest average wind speed) is February (19.9km/h).
The calmest month (with the lowest average wind speed) is June (11.8km/h).

Average humidity in October - Geysir, Iceland
Average humidity in October
Geysir, Iceland
  • Average humidity in October: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is June (78%).

Average rainfall in October - Geysir, Iceland
Average rainfall in October
Geysir, Iceland
  • Average rainfall in October: 95mm

The wettest month (with the highest rainfall) is January (141mm).
The driest month (with the least rainfall) is June (41mm).

Average rainfall days in October - Geysir, Iceland
Average rainfall days in October
Geysir, Iceland
  • Average rainfall days in October: 19.4 days

The month with the highest number of rainy days is September (21.9 days).
The month with the least rainy days is February (12.2 days).

Average snowfall in October - Geysir, Iceland
Average snowfall in October
Geysir, Iceland
  • Average snowfall in October: 53mm

The month with the highest snowfall is January (393mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in October - Geysir, Iceland
Average snowfall days in October
Geysir, Iceland
  • Average snowfall days in October: 6.3 days

The month with the highest number of snowfall days is March (17.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in October / Average sunshine in October - Geysir, Iceland
Average daylight in October /
Average sunshine in October
Geysir, Iceland
  • Average daylight in October: 9h and 4min

The month with the longest days is June (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 4h and 18min).

  • Average sunshine in October: 4h and 3min

The month with the most sunshine is August (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in October - Geysir, Iceland
Average sunshine days in October
Geysir, Iceland
  • Average sunshine days in October: 8.3 days

The month with the most sunshine days is June (10.5 days).
The month with the least sunshine days is September (5.3 days).

Average UV index in October - Geysir, Iceland
Average UV index in October
Geysir, Iceland
  • Average UV index in October: 1

The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are October and November (UV index 1).

Average cloud cover in October - Geysir, Iceland
Average cloud cover in October
Geysir, Iceland
  • Average cloud cover in October: 61

The month with the most cloud cover is September (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 57).

Average visibility in October - Geysir, Iceland
Average visibility in October
Geysir, Iceland
  • Average visibility in October: 8km

The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is January (7km).

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