Sea Temperature in Reykjavik in September

Complete information on the sea temperature range in the Atlantic Ocean in Reykjavik in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Reykjavik. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Reykjavik in September

45°F

MINIMUN

50°F

AVERAGE

55°F

MAXIMUM

Historical Data of Water Temperature in September in Reykjavik

Water Temperature Chart for Atlantic Ocean in Reykjavik in September

Sea Temperature Table in Reykjavik in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	54°C	52°C	50°C	51°C
Sep 2	54°C	54°C	46°C	51°C
Sep 3	54°C	52°C	45°C	50°C
Sep 4	54°C	52°C	50°C	51°C
Sep 5	54°C	52°C	52°C	52°C
Sep 6	52°C	52°C	46°C	50°C
Sep 7	54°C	52°C	46°C	50°C
Sep 8	54°C	52°C	46°C	51°C
Sep 9	52°C	52°C	48°C	51°C
Sep 10	54°C	52°C	46°C	51°C
Sep 11	52°C	50°C	48°C	50°C
Sep 12	52°C	50°C	46°C	50°C
Sep 13	52°C	50°C	48°C	50°C
Sep 14	52°C	50°C	48°C	50°C
Sep 15	52°C	50°C	48°C	50°C
Sep 16	52°C	50°C	46°C	49°C
Sep 17	52°C	50°C	52°C	51°C
Sep 18	50°C	50°C	45°C	48°C
Sep 19	50°C	50°C	45°C	48°C
Sep 20	50°C	50°C	45°C	48°C
Sep 21	48°C	50°C	45°C	47°C
Sep 22	48°C	50°C	45°C	48°C
Sep 23	46°C	50°C	50°C	49°C
Sep 24	48°C	48°C	50°C	49°C
Sep 25	48°C	48°C	50°C	49°C
Sep 26	48°C	48°C	46°C	48°C
Sep 27	50°C	48°C	45°C	48°C
Sep 28	50°C	48°C	50°C	49°C
Sep 29	48°C	48°C	52°C	49°C

Reykjavik Climate and Swimming Opportunities in September

50°F

Average Day Air Temperature

43°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

11 days

Number of Rainy Days

13 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

15 mph

Average Wind Speed

81%

Average
humidity

Reykjavik lies within in Iceland. The average daytime temperature in Reykjavik in September is 10°C (50°F), while the nighttime average is 6°C (42°F). There are typically 11 rainy days during the month, with a total precipitation of 73 mm (2.9 inches). The daylight duration in September in Reykjavik is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 24 km/h (15 mph), and the humidity level is around 81%.

The water temperature in Reykjavik in September ranges from 8°C to 11°C (46°F to 52°F). At the beginning of the month, the average temperature is around 10°C (50°F), shifting to 10°C (50°F) by mid-September and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Reykjavik for September is 10°C (50°F). The water is frigid, but with warmer air, it might be tolerable for a quick swim. Wetsuits are recommended.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Reykjavik

What is the sea temperature in Reykjavik in September?

The water temperature in the Atlantic Ocean in Reykjavik in September ranges from 8°C to 11°C (46°F to 52°F).

Is it possible to swim in the Atlantic Ocean in Reykjavik in September?

The average sea temperature in Reykjavik in September is 10°C (50°F), and the air temperature is 10°C (50°F), so the water is frigid, but with warmer air, it might be tolerable for a quick swim. Wetsuits are recommended.