Oulu / Oulunsalo vs Umeå: which is sunnier?
🇫🇮 Finland vs 🇸🇪 Sweden · 275 km apart · long-term climate normals (NASA POWER, 2001–2020)
Umeå is the sunnier overall: about 1,887 hours of sunshine a year to Oulu / Oulunsalo's 1,711. Umeå has the higher Sunshine Score in 1 of 12 months; the other 11 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Oulu / Oulunsalo | Umeå | |
|---|---|---|
| Sunshine hours / year | 1,711 | 1,887 |
| Sunniest month | July (73/100) | July (73/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 64/100 | 66/100 |
| Rain / year | 730 mm | 816 mm |
| Warmest sea | 20°C / 68°F | 18°C / 64°F |
| Peak midday UV | 4 (moderate) | 4 (moderate) |
Oulu / Oulunsalo vs Umeå month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Oulu / Oulunsalo | Umeå | Oulu / Oulunsalo | Umeå | Oulu / Oulunsalo | Umeå | Oulu / Oulunsalo | Umeå | |
| January | 0 | 0 | -7° | -5° | 49 | 60 | 0° | 0° |
| February | 0 | 0 | -7° | -4° | 39 | 46 | 0° | 0° |
| March | 0 | 0 | -2° | -1° | 41 | 43 | 0° | 0° |
| April | 0 | 0 | 4° | 5° | 44 | 46 | 0° | 1° |
| May | 25 | 26 | 12° | 12° | 66 | 61 | 5° | 7° |
| June | 58 | 59 | 17° | 17° | 64 | 63 | 17° | 15° |
| July | 73 | 73 | 20° | 20° | 83 | 92 | 20° | 18° |
| August | 62 | 65 | 18° | 19° | 76 | 101 | 20° | 18° |
| September | 31 | 31 | 13° | 13° | 77 | 86 | 16° | 15° |
| October | 0 | 0 | 5° | 6° | 67 | 78 | 8° | 9° |
| November | 0 | 0 | 0° | 1° | 64 | 69 | 3° | 4° |
| December | 0 | 0 | -4° | -2° | 60 | 71 | 0° | 1° |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul even · Aug Umeå · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Oulu / Oulunsalo averages 0/100, Umeå 0/100. Umeå is the warmer, around -2°C daytime highs vs -4°C. See the winter sun ranking.
- March–May: too close to call — Oulu / Oulunsalo averages 8/100, Umeå 9/100. Daytime highs are similar (5°C vs 5°C).
- June–August: too close to call — Oulu / Oulunsalo averages 64/100, Umeå 66/100. Daytime highs are similar (18°C vs 19°C).
- September–October: too close to call — Oulu / Oulunsalo averages 16/100, Umeå 16/100. Daytime highs are similar (9°C vs 10°C).
Sea temperature
Oulu / Oulunsalo's sea gets warmer: 20°C / 68°F at its peak vs 18°C. Swimmable water (21°C+): Oulu / Oulunsalo never, Umeå never. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Oulu / Oulunsalo weather by month · Umeå weather by month · Best time to visit Finland · Best time to visit Sweden.
More comparisons: Oulu / Oulunsalo vs Luleå · Oulu / Oulunsalo vs Rovaniemi · Umeå vs Luleå · Umeå vs Rovaniemi · all head-to-heads