Tromsø in August
In August, Tromsø averages 15°C (59°F) during the day and 9°C (48°F) at night, with around 12 days of rain (80 mm total).
High seasonConditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.
August in Tromsø is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How August compares to the rest of the year in Tromsø
August is one of the warmest months in Tromsø (2nd of 12) and moderately rainy compared to the rest of the year (7th of 12). Daytime temperature runs 10°C above the annual average (5°C). August runs 1°C cooler than July (16°C) and cools 5°C in September (10°C).
August sunrise & sunset in Tromsø
Times shown for Tromsø local time (Europe/Oslo), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Tromsø — August
Golden-hour and blue-hour windows for the 15th of August, in Tromsø's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tromsø in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (High season) and Tromsø's popularity.
Crowds & pricing — August in Tromsø
This is a busy month in Tromsø — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: comfortable tourism weather Northern Hemisphere summer holidays
Sun & mosquito risk — August in Tromsø
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Tromsø in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -2°C / 28°F | -7°C / 19°F | 80 mm | 15 | 12 |
| February | -2°C / 28°F | -7°C / 19°F | 65 mm | 13 | 10 |
| March | -1°C / 30°F | -6°C / 21°F | 65 mm | 12 | 8 |
| April | 2°C / 36°F | -3°C / 27°F | 50 mm | 10 | 4 |
| May | 7°C / 45°F | 1°C / 34°F | 40 mm | 9 | 1 |
| June | 12°C / 54°F | 5°C / 41°F | 55 mm | 10 | 0 |
| July | 16°C / 61°F | 9°C / 48°F | 75 mm | 11 | 0 |
| August | 15°C / 59°F | 9°C / 48°F | 80 mm | 12 | 0 |
| September | 10°C / 50°F | 5°C / 41°F | 90 mm | 12 | 1 |
| October | 4°C / 39°F | 0°C / 32°F | 115 mm | 15 | 3 |
| November | 1°C / 34°F | -3°C / 27°F | 90 mm | 14 | 8 |
| December | -1°C / 30°F | -5°C / 23°F | 85 mm | 15 | 11 |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Tromsø in August →
Frequently asked questions
How hot is Tromsø in August?
In August, Tromsø averages a high of 15°C (59°F) and a low of 9°C (48°F) — generally cool.
Does it rain a lot in Tromsø in August?
August can be fairly wet in Tromsø, with about 12 rainy days on average.
Is August a good time to visit Tromsø?
August is cool. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tromsø in August?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full August packing list for Tromsø for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.