Grundarfjordur Weather in October
Thinking of visiting Grundarfjordur in October? Expect low temperatures reaching 7°C (45°F) during the day, dropping to 4°C (39°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Grundarfjordur in October
Analyzing past climate data, one can expect approximately 19 days of rain, averaging 118 mm (4.6 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Grundarfjordur in October
Expect highs of 7°C (45°F) in Grundarfjordur in October, with nights dropping to around 4°C (39°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Grundarfjordur in October
This month sees fewer sunny days, with about 72 hours of sunshine, perfect for those who enjoy cooler temperatures.If you prefer dry days with pleasant temperatures, October may not be the ideal month to visit Grundarfjordur. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Grundarfjordur's climate page.
Grundarfjordur Temperature in October
Min Temperature
4°C (39°F)
Max Temperature
7°C (45°F)
Chance of Rain
63%
Precipitation
118 mm (4.6 in)
Rainy days
19 days
Humidity
81% *
Sunshine
72 hours *
Percentage Sunshine
23% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grundarfjordur typically stay consistent throughout October, with daily highs averaging around 7°C (45°F). Nights are cold, with lows typically ranging from 1°C (34°F) to 5°C (41°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Grundarfjordur in October
Browse day-by-day weather records for Grundarfjordur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grundarfjordur historical weather extremes in October
Based on 49 years of weather observations in Grundarfjordur between 1976 and 2025, these are the recorded extremes.
- The warmest day in October was on October 2, 2002, with a maximum of 15°C (59°F).
- The lowest daytime temperature in October was -4°C (25°F), recorded on October 31, 1996.
- Nighttime temperatures dropped to -6°C (21°F) on October 30, 2005, marking the coldest October night on record.
Best Places in Iceland in October
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Grundarfjordur in October
We recommend to layer up for chilly conditions in Grundarfjordur in October. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Grundarfjordur in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Grundarfjordur's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grundarfjordur climate overview or explore weather in Iceland.
