Rovaniemi (Lapland), Finland is most comfortable in May, June, August. The toughest month for heat is January (comfort 63/100). In August, daytime highs average 18.5°C (feels like 17°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 | -6.8° | -12.4° | -11.7° | 0 | 0 | 0 | 63 |
| February | -5.7° | -10.9° | -10.4° | 0 | 0 | 0 | 66 |
| March | -1.1° | -8.1° | -5.4° | 0 | 0 | 0 | 77 |
| April | 3.9° | -4.5° | -0.3° | 0 | 0 | 0 | 90 |
| May | 11.4° | 1.8° | 7.9° | 0 | 0 | 0 | 100 |
| June | 18.4° | 9.8° | 16.3° | 0 | 0 | 0 | 100 |
| July | 21° | 12.7° | 19.9° | 0.4 | 0 | 0.2 | 99 |
| August | 18.5° | 10.9° | 17° | 0 | 0 | 0 | 100 |
| September | 12.8° | 6.8° | 10.4° | 0 | 0 | 0 | 100 |
| October | 4.5° | 0.1° | 1.1° | 0 | 0 | 0 | 91 |
| November | -2.3° | -7.1° | -6.4° | 0 | 0 | 0 | 74 |
| December | -5.2° | -10.5° | -9.8° | 0 | 0 | 0 | 67 |
No. August daytime highs in Rovaniemi (Lapland) average a comfortable 18.5°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 Rovaniemi (Lapland) are May, June, August. The toughest month for heat is January, scoring 63/100 on our heat-comfort index.
In August, nights in Rovaniemi (Lapland) average a low of 10.9°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.