Reykjavik weather in August
Reykjavik in August averages 11°C (53°F), 66 mm of rain and 5.2 hours of sun a day.
Of the twelve months in Reykjavik, August is the second warmest, the fifth driest and the fifth sunniest.
- Average temp
- 11°C (53°F)
9–14°C · 47–58°F
- Rainfall
- 66 mm
Showers likely
- Sunshine
- 5.2 h
hours per day
- Wind
- 20 km/h
What is Reykjavik like in August?
Daytime
Days are cool.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Reykjavik in August?
A light rain jacket
About 66 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 9°C (47°F).
August compared with July and September
August in Reykjavik is 0.6°C cooler than July and 16 mm wetter than it, which averages 12°C (54°F).
August in Reykjavik is 2.6°C warmer than September and 21 mm drier than it, which averages 9°C (48°F).
Daylight in Reykjavik in August
On 15 August the sun is up for 16 hours 22 minutes in Reykjavik, rising about 05:20 and setting about 21:41 local time.
August ends 3 hours 17 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 4 hours 42 minutes short of June, the longest-lit month here.
Where to stay in Reykjavik
Dates are a starting point for August.
Travel guides for Reykjavik
What to read before you book.
Reykjavik weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 1°C / 33°F | 86 mm |
| February | 1°C / 33°F | 87 mm |
| March | 2°C / 35°F | 84 mm |
| April | 4°C / 39°F | 56 mm |
| May | 7°C / 45°F | 49 mm |
| June | 10°C / 50°F | 41 mm |
| July | 12°C / 54°F | 50 mm |
| August | 11°C / 53°F | 66 mm |
| September | 9°C / 48°F | 87 mm |
| October | 5°C / 41°F | 80 mm |
| November | 2°C / 36°F | 86 mm |
| December | 1°C / 33°F | 97 mm |
Check another month
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FAQs about Reykjavik in August
August climate averages for Reykjavik, 1991–2020.
Reykjavik averages 11°C (53°F) in August, ranging from about 9°C (47°F) at night to 14°C (58°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 66 mm falls across August, enough to need a light jacket but not enough to reshape a trip.
Yes. August averages 11°C (53°F) against 9°C (48°F) in September — 2.6°C warmer.
August is 0.6°C cooler than July, and 16 mm wetter.
Yes. August falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 5.2 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 16 hours 22 minutes of daylight in mid-August, against 21 hours 4 minutes in June and 4 hours 12 minutes in December.
On 15 August, sunrise is about 05:20 and sunset about 21:41 local time. Both shift across the month — the month ends 3 hours 17 minutes shorter than it starts.
