Norway · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Oslo are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
Oslo sees its warmest weather in July, when daytime highs average around 23°C, and its coolest in January (around 0°C).
Annual precipitation totals roughly 836mm — August is typically the wettest month (~103mm) and March the driest (~41mm).
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 0° / -5°C | 58mm | 🤔 Fair |
| February | 1° / -5°C | 46mm | 🤔 Fair |
| March | 5° / -2°C | 41mm | 🤔 Fair |
| April | 11° / 2°C | 48mm | 🤔 Fair |
| May | 17° / 7°C | 60mm | 👍 Good |
| June | 20° / 11°C | 80mm | 🌟 Great |
| July | 23° / 13°C | 87mm | 🌟 Great |
| August | 21° / 13°C | 103mm | 🌟 Great |
| September | 16° / 9°C | 82mm | 👍 Good |
| October | 10° / 4°C | 93mm | ⚠️ Challenging |
| November | 4° / 0°C | 85mm | 🤔 Fair |
| December | 1° / -4°C | 54mm | 🤔 Fair |
January in Oslo is cold, with average daytime highs around 0°C (32°F) and nighttime lows near -5°C (24°F). Expect roughly 58mm of precipitation spread over about 10 rainy days, with little rainfall.
🎒 What to pack — warm coat · sweaters and layers · scarf
February in Oslo is cold, with average daytime highs around 1°C (34°F) and nighttime lows near -5°C (24°F). Expect roughly 46mm of precipitation spread over about 8 rainy days, with little rainfall.
🎒 What to pack — warm coat · sweaters and layers · scarf
March in Oslo is cold, with average daytime highs around 5°C (42°F) and nighttime lows near -2°C (28°F). Expect roughly 41mm of precipitation spread over about 7 rainy days, with little rainfall.
🎒 What to pack — warm coat · sweaters and layers · scarf
April in Oslo is chilly, with average daytime highs around 11°C (52°F) and nighttime lows near 2°C (36°F). Expect roughly 48mm of precipitation spread over about 8 rainy days, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
May in Oslo is mild, with average daytime highs around 17°C (62°F) and nighttime lows near 7°C (44°F). Expect roughly 60mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
🎒 What to pack — light jacket · layers for cool evenings
June in Oslo is pleasantly warm, with average daytime highs around 20°C (69°F) and nighttime lows near 11°C (51°F). Expect roughly 80mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
July in Oslo is pleasantly warm, with average daytime highs around 23°C (73°F) and nighttime lows near 13°C (56°F). Expect roughly 87mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
August in Oslo is pleasantly warm, with average daytime highs around 21°C (70°F) and nighttime lows near 13°C (55°F). Expect roughly 103mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
September in Oslo is mild, with average daytime highs around 16°C (62°F) and nighttime lows near 9°C (47°F). Expect roughly 82mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
🎒 What to pack — light jacket · layers for cool evenings
October in Oslo is chilly, with average daytime highs around 10°C (49°F) and nighttime lows near 4°C (39°F). Expect roughly 93mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — jacket or coat · long-sleeve layers
November in Oslo is cold, with average daytime highs around 4°C (40°F) and nighttime lows near 0°C (32°F). Expect roughly 85mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — warm coat · sweaters and layers · scarf
December in Oslo is cold, with average daytime highs around 1°C (34°F) and nighttime lows near -4°C (25°F). Expect roughly 54mm of precipitation spread over about 10 rainy days, with little rainfall.
🎒 What to pack — warm coat · sweaters and layers · scarf