Average Temperatures in Reykjavík, Iceland
- The average annual temperature in Reykjavík, Iceland is cool at 4.3 degrees Celsius (39.7 degrees Fahrenheit).
- Mean monthly temperatures have a range of 11.1 °C (20°F) which is a low range.
- The range/ variation of daily mean temperatures is 4.8 °C (8.7 °F).
- July is the hottest month (quite mild) having a mean temperature of 10.6 degrees Celsius (51.08 degrees Fahrenheit).
- January is the coolest month (slightly cold) with a mean temperature of -0.5 degrees Celsius (31.1 degrees Fahrenheit).
- The mean annual sea temperature is 6.5 °C (43.7 °F).
Average Temperatures Table for Reykjavík
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Max Temperature °C ( °F) | 2 (35.6) | 3 (37.4) | 4 (39.2) | 6 (42.8) | 10 (50) | 12 (53.6) | 14 (57.2) | 14 (57.2) | 11 (51.8) | 7 (44.6) | 4 (39.2) | 2 (35.6) | 7.4 (45.4) | |
 | Average Temperature °C ( °F) | -0.5 (31.1) | 0.4 (32.7) | 0.5 (32.9) | 2.9 (37.2) | 6.3 (43.3) | 9 (48.2) | 10.6 (51.1) | 10.3 (50.5) | 7.4 (45.3) | 4.4 (39.9) | 1.1 (34) | -0.2 (31.6) | 4.3 (39.7) | |
 | Average Min Temperature °C ( °F) | -2 (28.4) | -2 (28.4) | -1 (30.2) | 1 (33.8) | 4 (39.2) | 7 (44.6) | 9 (48.2) | 8 (46.4) | 6 (42.8) | 3 (37.4) | 0 (32) | -2 (28.4) | 2.6 (36.7) | |
| Average Sea or Water Temp °C ( °F) | 2 (36) | 2 (36) | 3 (37) | 4 (39) | 7 (45) | 10 (50) | 12 (54) | 12 (54) | 10 (50) | 8 (46) | 5 (41) | 3 (37) | 7 (44) |
Reykjavík Average Temperatures Chart
The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).
