Grindavík Weather in October
Grindavík in October averages 9°C (48°F) during the day and 4°C (39°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Grindavík in October
Expect around 21 days of rain based on historical data, with 130 mm (5.1 in) average. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Grindavík in October
Temperatures in Grindavík in October top out at 9°C (48°F) and drop to 4°C (39°F) overnight. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Grindavík in October
The area experiences limited sunny days, amounting to roughly 92 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.If you prefer dry days with pleasant temperatures, October may not be the ideal month to visit Grindavík. 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 Grindavík's climate page.
Grindavík Temperature in October
Min Temperature
4°C (39°F)
Max Temperature
9°C (48°F)
Chance of Rain
69%
Precipitation
130 mm (5.1 in)
Rainy days
21 days
Humidity
80% *
Sunshine
92 hours *
Percentage Sunshine
31% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grindavík typically stay consistent throughout October, with daily highs averaging around 9°C (48°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 Grindavík in October
Browse day-by-day weather records for Grindavík spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grindavík historical weather extremes in October
The extremes listed below come from historical weather data collected in Grindavík from 1976 through 2025.
- The hottest October day on record in Grindavík reached 14°C (57°F) (October 7, 2014).
- On October 31, 1996, Grindavík saw its coldest October day with temperatures maxing out at -2°C (28°F).
- The coldest night in October in Grindavík was on October 15, 1993, with a minimum of -7°C (19°F).
- Peak precipitation in October occurred on October 21, 1977, when 81 mm (3.2 in) of precipitation was measured.
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 Grindavík in October
Cold weather calls for smart layering in October. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Grindavík 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 Grindavík's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grindavík climate overview or explore weather in Iceland.
