Stockholm, Sweden is most comfortable in April, May, June. The toughest month for heat is January (comfort 82/100). In August, daytime highs average 20.7°C (feels like 19.7°C) with 0 days over 30°C and 0 tropical nights.
| Month | Avg high | Avg low | Feels like | Days ≥30°C | Days ≥35°C | Nights ≥20°C | Comfort |
|---|---|---|---|---|---|---|---|
| January | 0.8° | -3.8° | -3.6° | 0 | 0 | 0 | 82 |
| February | 1.7° | -3.8° | -2.5° | 0 | 0 | 0 | 84 |
| March | 6.2° | -1.5° | 2° | 0 | 0 | 0 | 95 |
| April | 9.5° | 0.6° | 5.7° | 0 | 0 | 0 | 100 |
| May | 15.7° | 5.8° | 13° | 0 | 0 | 0 | 100 |
| June | 21.5° | 11.7° | 20.3° | 0 | 0 | 0 | 100 |
| July | 22.4° | 14° | 21.9° | 0.4 | 0 | 0 | 100 |
| August | 20.7° | 13° | 19.7° | 0 | 0 | 0 | 100 |
| September | 16.9° | 10° | 15.3° | 0 | 0 | 0 | 100 |
| October | 11.1° | 5.7° | 8.2° | 0 | 0 | 0 | 100 |
| November | 5.1° | 1° | 1.6° | 0 | 0 | 0 | 93 |
| December | 1.3° | -3.1° | -2.7° | 0 | 0 | 0 | 83 |
No. August daytime highs in Stockholm average a comfortable 20.7°C with 0 days over 30°C — it's a solid summer choice for avoiding extreme heat.
Based on 5 years of climate data, the most comfortable months in Stockholm are April, May, June. The toughest month for heat is January, scoring 82/100 on our heat-comfort index.
In August, nights in Stockholm average a low of 13°C, with 0 tropical nights per month (nights that stay at or above 20°C) — a key factor for sleep quality if your stay has no air conditioning.
Tell us where and when you're going. If a heatwave becomes likely for your dates, we'll email you early — with cooler day-by-day alternatives nearby.