Reykjavík is warmest in July, averaging 13° by day and 9° at night. The wettest month is January with 167 mm, and the year brings about 1573 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 1° | -2° | 167 mm | 4° | 4.9 h | Cool |
| February | 1° | -2° | 143 mm | 4° | 8.0 h | Cool |
| March | 2° | -1° | 143 mm | 4° | 11.2 h | Cool |
| April | 5° | 1° | 114 mm | 5° | 14.7 h | Cool |
| May | 8° | 3° | 118 mm | 7° | 17.9 h | Cool |
| June | 11° | 7° | 108 mm | 10° | 20.4 h | Cool |
| July | 13° | 9° | 90 mm | 11° | 19.3 h | Mild |
| August | 13° | 8° | 130 mm | 12° | 16.1 h | Mild |
| September | 10° | 6° | 162 mm | 10° | 12.6 h | Cool |
| October | 6° | 3° | 127 mm | 8° | 9.3 h | Cool |
| November | 4° | 0° | 135 mm | 6° | 5.9 h | Cool |
| December | 1° | -2° | 136 mm | 5° | 3.6 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: No month in Reykjavík combines swimming warmth with dry skies.