Tomorrow's Weather Forecast - Reykjavik

Tomorrow's weather in Reykjavik. high 11°C (52°F), low 5°C (41°F). Drizzle.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Light rain is possible, though a 35% peak chance means much of the day could stay dry. That risk lines up with humidity averaging 67% through the day the more moisture in the air, the more readily clouds build into showers. Humidity sits at a moderate 67%, so the air shouldn't feel unusually damp or dry. A light breeze near 22 km/h is expected. Sunrise is at 6:41 AM and sunset at 8:03 PM, for about 13h 22m of daylight.

Tomorrow
11°/ 5°
Today10° / 6°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon
Rain probability
35%
Wind speed
13 km/h
AfternoonNoon – 6 PM10°
Rain probability
18%
Wind speed
10 km/h
Evening6 PM – Midn
Rain probability
2%
Wind speed
10 km/h
NightMidn – 6 AM
Rain probability
13%
Wind speed
22 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
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Temperature · peaks at +11°C

Planning Advice for Tomorrow

Clothing
Bundle up — heavy coat, scarf, and gloves needed.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 6:11 AM
Total Daylight
Full day forecastSolar noon 1:22 PM
Sunset
Dusk 8:33 PM
vs today-7 min daylight
Sunrise shift3 min later
Sunset shift4 min earlier

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Reykjavik is forecast to reach a high of 11°C tomorrow, with an overnight low around 5°C. That's 1° above the long-term average high of 10°C for this time of year. Expect a low chance of rain (35% probability) and moderate breezes averaging 22 km/h. Air quality is currently good (AQI 33), with no notable outdoor health concerns.

Today vs Normal

10°C0° below normal

The long-term average high for today is 10°C.

13 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

2026-08-28: 11°C11°2026-08-29: 10°C10°2026-08-30: 11°C11°2026-08-31: 12°C12°2026-09-01: 12°C12°2026-09-02: 10°C10°2026-09-03: 9°C9°2026-09-04: 11°C11°2026-09-05: 10°C10°2026-09-06: 12°C12°2026-09-07: 12°C12°2026-09-08: 13°C13°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.