January
Tough weather
0.5/10
5°C / 1°C · 20 rain days · 1.8 h sun · sea 7°C
Days are short and dark, with highs near 5°C and lows around 1°C. Rain falls on about 20 days, and sun hours average just 1.8 a day. The low score reflects tough weather: this is a month for storm-watching or indoor culture, not hiking, though New Year's Day marks the start.
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February
Tough weather
1.0/10
5°C / 2°C · 19 rain days · 3.9 h sun · sea 7°C
Still cold, with highs of 5°C and lows of 1.5°C. Rain days drop slightly to 18.5, and sun creeps up to 3.9 hours a day. The verdict stays weak, since wind and short daylight limit outdoor plans, but light is slowly returning.
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Where to go in February →
March
Tough weather
1.4/10
6°C / 2°C · 22 rain days · 5.7 h sun · sea 7°C
Highs reach 5.7°C but rain days climb to 21.6, the wettest spell of days all year. Sun hours rise to 5.7, giving brighter afternoons despite the frequent showers. Scores remain low, as changeable weather and lingering cold keep this an off-season month.
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Where to go in March →
April
Tough weather
2.0/10
7°C / 3°C · 16 rain days · 7.8 h sun · sea 7°C
Spring brings relief: highs hit 6.9°C and rain days fall to 15.9, among the driest counts of the year. Sun hours reach 7.8. Easter weekend and National Flag Day on the 25th fall in this month, though the overall score is still weak.
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Where to go in April →
May
Tough weather
2.6/10
9°C / 5°C · 17 rain days · 8.6 h sun · sea 8°C
Highs climb to 9.1°C and lows finally clear freezing at 5.2°C. Rain days are a manageable 16.6, with sun hours at 8.6. General Prayer Day, Ascension Day and Whit weekend all land in May, and conditions are improving, though the verdict is still cautious.
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Where to go in May →
June
Tough weather
3.7/10
11°C / 8°C · 16 rain days · 9.0 h sun · sea 9°C
Highs reach 11.4°C with lows of 7.7°C, and sun hours peak at 9 a day. Rain days sit at 16.2, among the lowest of the year. Constitution Day falls on the 5th, and this is when long daylight hours make up for the still-cool air, pushing the score toward the year's best range.
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Where to go in June →
July
Best time
4.3/10
13°C / 9°C · 20 rain days · 7.8 h sun · sea 11°C
This is one of the two best months to visit, with highs of 12.7°C and sea temperatures reaching 10.8°C, the warmest water of the year. Rain days rise again to 20.1, so pack for showers even in midsummer. Saint Olav's Eve and Day close out the month with the islands' main festival period.
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Where to go in July →
August
Best time
4.3/10
13°C / 9°C · 18 rain days · 7.7 h sun · sea 11°C
August ties July for the top score, with highs of 12.8°C, the warmest air of the year, and sea at 11.3°C. Rain days ease slightly to 18.4, and sun hours stay solid at 7.7. This is the most reliable stretch for hiking and boat trips.
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Where to go in August →
September
Tough weather
3.1/10
12°C / 8°C · 19 rain days · 5.6 h sun · sea 11°C
Highs drop to 11.5°C and sun hours fall sharply to 5.6 as rain days climb to 19.1. The score slides, marking the shift toward autumn storms. Colours change fast and crowds thin, but weather turns less predictable.
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Where to go in September →
October
Tough weather
1.5/10
9°C / 6°C · 20 rain days · 3.8 h sun · sea 10°C
Highs fall to 9.2°C and rain days reach 20.2, with rainfall totalling 163mm, among the wettest months. Sun hours drop to 3.8. The low score reflects the start of the stormy, dark season setting in.
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Where to go in October →
November
Tough weather
0.6/10
7°C / 4°C · 19 rain days · 2.2 h sun · sea 9°C
Highs sit at 6.9°C and sun hours fall to just 2.2 a day. Rain days average 19, and the score is near the year's lowest, as short days and frequent wind and rain dominate. This month suits travellers drawn to dramatic, stormy coastal scenery rather than outdoor activity.
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Where to go in November →
December
Tough weather
0.3/10
6°C / 2°C · 20 rain days · 1.0 h sun · sea 8°C
This is the toughest month on record, with sun hours at just 1 a day and rainfall peaking at 169mm over 20.2 rain days. Highs reach only 5.7°C. Christmas Eve, Christmas Day, St. Stephen's Day and New Year's Eve bring holiday light to the darkest stretch of the year.
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Where to go in December →