Oulu / Oulunsalo weather by month & the best time to visit
Finland · seaside town · continental climate

The best time to visit Oulu / Oulunsalo is July — its sunniest month (Sunshine Score 73/100). Oulu / Oulunsalo averages about 1,711 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 83 mm of rain in July.
When is the best time to visit Oulu / Oulunsalo?
For sunshine, the best time to visit Oulu / Oulunsalo is July. The dullest month is January (0/100, 49 mm of rain). The full month-by-month picture is in the table below.
How sunny is Oulu / Oulunsalo?
Oulu / Oulunsalo isn't a sunny place by world standards: about 1,711 hours of sunshine a year. 73 Sunshine Score points separate July (73) from January (0), so the month you pick matters. It ranks #8 of 20 destinations in Finland for annual sunshine, above the national median of 1,638 hours. The year's 730 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -7° / 19°F | -12° / 10°F | 49 mm | 0 | 0° / 32°F |
| February | 0 | -7° / 19°F | -12° / 10°F | 39 mm | 0 | 0° / 32°F |
| March | 0 | -2° / 28°F | -8° / 18°F | 41 mm | 1 | 0° / 32°F |
| April | 0 | 4° / 39°F | -2° / 28°F | 44 mm | 2 | 0° / 32°F |
| May | 25 | 12° / 54°F | 4° / 39°F | 66 mm | 3 | 5° / 41°F |
| June | 58 | 17° / 63°F | 9° / 48°F | 64 mm | 3 | 17° / 63°F |
| July | 73 | 20° / 68°F | 13° / 55°F | 83 mm | 4 | 20° / 68°F |
| August | 62 | 18° / 64°F | 12° / 54°F | 76 mm | 3 | 20° / 68°F |
| September | 31 | 13° / 55°F | 7° / 45°F | 77 mm | 1 | 16° / 61°F |
| October | 0 | 5° / 41°F | 1° / 34°F | 67 mm | 0 | 8° / 46°F |
| November | 0 | 0° / 32°F | -3° / 27°F | 64 mm | 0 | 3° / 37°F |
| December | 0 | -4° / 25°F | -8° / 18°F | 60 mm | 0 | 0° / 32°F |
Sea temperature in Oulu / Oulunsalo by month
The sea off Oulu / Oulunsalo is warmest in July at around 20°C / 68°F, and coolest in January at 0°C / 32°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Oulu / Oulunsalo compares month by month: Oulu / Oulunsalo vs Umeå · Oulu / Oulunsalo vs Luleå · Oulu / Oulunsalo vs Rovaniemi · all comparisons
Oulu / Oulunsalo: questions and answers
What kind of destination is Oulu / Oulunsalo?
Oulu / Oulunsalo is a seaside town in Finland with a continental climate — the sea reaches 20°C at its warmest.
How many hours of sunshine does Oulu / Oulunsalo get a year?
Oulu / Oulunsalo gets about 1,711 hours of sunshine a year, at its best around July.
When is the best time to visit Oulu / Oulunsalo?
The sunniest time to visit Oulu / Oulunsalo is July, when the Sunshine Score peaks at 73/100. Expect daytime highs around 20°C / 68°F.
What is the least sunny month in Oulu / Oulunsalo?
January is the least sunny month in Oulu / Oulunsalo, scoring 0/100 with about 49 mm of rain.
What is the sea temperature in Oulu / Oulunsalo?
The sea in Oulu / Oulunsalo ranges from about 0°C (January) to 20°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Oulu / Oulunsalo?
The typical midday UV index in Oulu / Oulunsalo peaks around 4 (moderate) in July, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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