Weather in Reykjavik in August

August in Reykjavik is cool outdoor weather: usable if you dress for it, not a beach brief.

In Iceland, this is how Reykjavik actually wears August, not how a country centroid would. Compared with July and February, August sits in the middle of Reykjavik's year.

Pack for Reykjavik in August, not for a brochure that was photographed in another season.

Reykjavik
Average temp
11°C

9–14°C

Rainfall
66 mm

Showers likely

Sunshine
5.2 h

hours per day

Wind
20 km/h

What to expect

Daytime

Cool days in Reykjavik: a jumper you can take off, a shell in the bag. Walking is fine. Lingering outside without a layer is optimism.

Mornings and evenings are colder than the postcard. Pack for both, especially if you leave the built-up centre.

Rain

Mixed skies in Reykjavik in August. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.

Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • Rain jacket

  • A layer for cooler evenings

Where to stay in Reykjavik

Dates are a starting point for August.

All hotels in Reykjavik

Average weather in Reykjavik

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

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FAQs about Reykjavik

Climate averages for Reykjavik, 1991–2020.

The best time to visit Reykjavik is between May and October, the most comfortable stretch of the year on these averages.

July is the hottest month, with an average around 12°C.

December is the wettest month, with about 97 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.