Best time to visit Oslo
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Oslo
7 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Oslo).
- 1
Oslo Nature Walks: Island hopping - 2
Oslo Highlights Bike Tour - 3
Oslo Guided Food Tour with 5 Food Tastings and A Secret Dish! - 4
Oslo to Sognefjord Full Day Private Round Trip and Flam Railway - 5
Architectural Oslo: Private Tour with a Local Expert - 6
Airport Transfer: Oslo Airport OSL to Oslo City by Business Car - 7
Oslo Self Guided Sherlock Holmes Murder Mystery Game
Last refreshed 2026-05-27.
Similar climatesCopenhagen91% · Gdansk88% · Helsinki87%
Other destinations with the most-alike year-round climate to Oslo (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Oslo's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -5–0 | -4 | 10 | 141 | 14.1 | 83% | 17 | 68 | — | Quiet | 3 |
| Feb | -4–2 | -2 | 11 | 130 | 11.8 | 76% | 18 | 108 | 1 | Quiet | 4 |
| Mar | -2–5 | 1 | 9 | 116 | 12.9 | 68% | 16 | 173 | 1 | Quiet | 5 |
| Apr | 1–10 | 6 | 8 | 101 | 12.6 | 51% | 16 | 231 | 2 | Quiet | 6 |
| May | 6–16 | 13 | 11 | 120 | 10.9 | 49% | 16 | 287 | 4 | Quiet | 7 |
| Jun | 12–21 | 20 | 10 | 132 | 13.2 | 53% | 16 | 302 | 4 | Quiet | 8 |
| Jul | 13–20 | 19 | 14 | 193 | 13.8 | 63% | 16 | 276 | 4 | Quiet | 7 |
| Aug | 13–20 | 19 | 12 | 134 | 11.2 | 63% | 16 | 246 | 3 | Peak | 8 |
| Sep | 10–16 | 15 | 10 | 130 | 13.0 | 70% | 16 | 173 | 2 | Moderate | 7 |
| Oct | 5–10 | 7 | 13 | 169 | 13.0 | 81% | 17 | 111 | 1 | Quiet | 4 |
| Nov | 1–5 | 1 | 12 | 151 | 12.6 | 85% | 16 | 54 | — | Peak | 3 |
| Dec | -4–0 | -4 | 13 | 197 | 15.2 | 86% | 14 | 39 | — | Moderate | 3 |
UV Index in Oslo by Month
UV index in Oslo peaks at 4 (moderate) in June, dropping to 0 (low) in January.
Best months in detail
June
8/1012–21°C (feels 20°C) · 10 rain days (132h) · 302 sun hours · 53% humidity · Quiet crowd · UV 4 (moderate)
August
8/1013–20°C (feels 19°C) · 12 rain days (134h) · 246 sun hours · 63% humidity · Peak crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
May
7/106–16°C (feels 13°C) · 11 rain days (120h) · 287 sun hours · 49% humidity · Quiet crowd · UV 4 (moderate)
Every month
Show the other 9 months in detail
January
3/10-5–0°C (feels -4°C) · 10 rain days (141h) · 68 sun hours · 83% humidity · Quiet crowd
February
4/10-4–2°C (feels -2°C) · 11 rain days (130h) · 108 sun hours · 76% humidity · Quiet crowd · UV 1 (low)
March
5/10-2–5°C (feels 1°C) · 9 rain days (116h) · 173 sun hours · 68% humidity · Quiet crowd · UV 1 (low)
April
6/101–10°C (feels 6°C) · 8 rain days (101h) · 231 sun hours · 51% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
July
7/1013–20°C (feels 19°C) · 14 rain days (193h) · 276 sun hours · 63% humidity · Quiet crowd · UV 4 (moderate)
September
7/1010–16°C (feels 15°C) · 10 rain days (130h) · 173 sun hours · 70% humidity · Moderate crowd · UV 2 (low)
October
4/105–10°C (feels 7°C) · 13 rain days (169h) · 111 sun hours · 81% humidity · Quiet crowd · UV 1 (low)
November
3/101–5°C (feels 1°C) · 12 rain days (151h) · 54 sun hours · 85% humidity · Peak crowd
December
3/10-4–0°C (feels -4°C) · 13 rain days (197h) · 39 sun hours · 86% humidity · Moderate crowd
Frequently asked questions about visiting Oslo
When is the best time to visit Oslo?
June is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 12–21°C (10 rainy days). The top three months by score are June, August, May.
What is the worst time to visit Oslo?
December is the lowest-scoring month (3/10). Typical conditions: -4–0°C (13 rainy days).
When are crowds lowest in Oslo?
Search-interest seasonality (Google Trends 2021-2025) is lowest in March and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Oslo have good weather but fewer tourists?
June (climate 8/10, crowd index 12) and May (climate 7/10, crowd index 3) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Oslo by month?
UV peaks at 4 (moderate) in June and is lowest in January at 0 (low). Monthly peak values: Jan —, Feb 1, Mar 1, Apr 2, May 4, Jun 4, Jul 4, Aug 3, Sep 2, Oct 1, Nov —, Dec —.
What is the UV index in Oslo in June?
June is the peak UV month in Oslo, with a daily-peak UV index of 4 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.
How high can UV get in Oslo on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. August is the worst case: typical days average UV 3 (low), but the top 10% of days reach UV 4 (moderate) — and even higher. Months where the sunniest days routinely exceed the typical reading: April, August. Plan sun protection for the worst case, not the average.
Is air quality in Oslo bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 5 months: January, February, March, November, December. The worst month is February with a typical-day mean of 11 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 19 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.