Peak score
5.3/10
Best months in Keflavík, Iceland
Best Time to Visit Keflavík, Iceland
Climate guide for Keflavík, Iceland — updated 2026
Travel window June, July, August Peak: July · 5.3/10 climate score
Months to avoid January, February, March, April
Keflavík on the map · best months to visit
Keflavík, Iceland
- Best monthsJune, July, August
- Avoid monthsJanuary, February, March, April
- Visit score now5/10
- Coordinates
- 64.00°, -22.56°
Quick answer
Plan your trip for June, July, August. Expect average highs near 12°C, lows near 9°C, and about 13 rainy days a month. Skip January, February, March, April when very cold temperatures, heavy rainfall sets in.
Warmest month
13°C
Coldest month
0°C
Wettest month
19d
Travel score by month
Each score weighs temperature comfort, rain, humidity, and outdoor conditions. Higher is better.
1 Jan
1 Feb
1 Mar
1 Apr
2.7 May
5 Jun
5.3 Jul
5.3 Aug
2.7 Sep
1.5 Oct
1 Nov
1 Dec
Excellent (7–10) Mixed (5–6) Tough (0–4)
Month-by-Month Recommendation
Tap any month to open its full weather page. Cards highlight score, temperature, rain, and comfort.
January
1 /10
Poor
3°C / 0°C 19 rainy days Comfort Score: 1/10
February
1 /10
Poor
3°C / 0°C 18 rainy days Comfort Score: 1/10
March
1 /10
Poor
4°C / 1°C 17 rainy days Comfort Score: 1/10
April
1 /10
Poor
6°C / 3°C 15 rainy days Comfort Score: 1/10
May
2.7 /10
Poor
9°C / 5°C 16 rainy days Comfort Score: 2.5/10
June Best
5 /10
Fair
11°C / 8°C 14 rainy days Comfort Score: 4.5/10
July Best
5.3 /10
Fair
13°C / 10°C 13 rainy days Comfort Score: 5/10
August Best
5.3 /10
Fair
12°C / 10°C 13 rainy days Comfort Score: 5/10
September
2.7 /10
Poor
10°C / 7°C 18 rainy days Comfort Score: 1.8/10
October
1.5 /10
Poor
7°C / 5°C 18 rainy days Comfort Score: 1.8/10
November
1 /10
Poor
5°C / 2°C 16 rainy days Comfort Score: 1/10
December
1 /10
Poor
3°C / 0°C 17 rainy days Comfort Score: 1/10
Climate normals
Compare the monthly shape of temperature highs/lows and rainfall before locking in your dates.
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 3°C / 0°C . Feb: 3°C / 0°C . Mar: 4°C / 1°C . Apr: 6°C / 3°C . May: 9°C / 5°C . Jun: 11°C / 8°C . Jul: 13°C / 10°C . Aug: 12°C / 10°C . Sep: 10°C / 7°C . Oct: 7°C / 5°C . Nov: 5°C / 2°C . Dec: 3°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 124 mm. Feb: 122 mm. Mar: 115 mm. Apr: 102 mm. May: 101 mm. Jun: 76 mm. Jul: 71 mm. Aug: 87 mm. Sep: 135 mm. Oct: 134 mm. Nov: 111 mm. Dec: 112 mm.
Season by Season
Season cards explain why scores rise and fall, with a representative month picked for each.
Spring
Avg score 1.6/10Mar, Apr, May
Average highs of 6°C (43°F) with 16 rainy days per month. Climate score: 1.6/10.
This month falls at the beginning of Spring. Cold conditions dominate the month.
Weather conditions this month are less ideal compared to other times of the year. Indoor activities or shorter outings may be more comfortable.
Summer
Avg score 5.2/10Jun, Jul, Aug
Average highs of 12°C (54°F) with 13 rainy days per month. Climate score: 5.2/10.
This month falls at the beginning of Summer.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Autumn
Avg score 1.7/10Sep, Oct, Nov
Average highs of 7°C (45°F) with 17 rainy days per month. Climate score: 1.7/10.
This month falls at the beginning of Autumn.
Weather conditions this month are less ideal compared to other times of the year. Indoor activities or shorter outings may be more comfortable.
Winter
Avg score 1/10Dec, Jan, Feb
Average highs of 3°C (37°F) with 18 rainy days per month. Climate score: 1/10.
This month falls at the middle of Winter. Cold conditions dominate the month.
Weather conditions this month are less ideal compared to other times of the year. Indoor activities or shorter outings may be more comfortable.
Frequently Asked Questions
The best months to visit Keflavík are June, July, August, when temperatures are comfortable and rainfall is low.
Consider avoiding January, February, March, April due to very cold temperatures, heavy rainfall.
Packing depends on the season. In peak months (June, July, August), light layers and sun protection are typical essentials.
Yes! June earns a climate score of 5/10 and is one of the best months to visit Keflavík. Mild conditions, with highs averaging 10.5°C (51°F) and noticeably cooler mornings. Rain falls on about 14 days this month. Winds are noticeable. Sea temperature stays cool at 9.8°C (50°F).
Yes! July earns a climate score of 5.3/10 and is one of the best months to visit Keflavík. Mild conditions, with highs averaging 12.5°C (55°F) and noticeably cooler mornings. Rain falls on about 13 days this month. Sea temperature stays cool at 11.8°C (53°F).