Peak in July
Coolest in January
Heavy in September
Peak in dry season
Tromsø Monthly Weather Guide
Click any month to explore daily weather forecasts
January
February
March
April
May
June
July
August
September
October
November
December
Essential Travel Info for Tromsø
Currency
NOK
kr Norwegian krone
Language
Norwegian Nynorsk
+2 more
Driving
Right side
Connect
Tromsø has a goodcellular4G and 5G signa...
Safety
Very High Safety
GPI: 1.465
Best Time to Visit Tromsø
Location, climate overview & historical trends
Tap to Explore Map
📍 69.6492° N, 18.9553° E
Open in Google MapsTromsø is a prominent destination in Norway.
Located at 69.65°N latitude,Tromsø experiences a subarctic climate with cold winters and mild summers.
Based on 30 years of data, July is the warmest month (avg. 17°C), while January is the coolest. September sees the most rain (46% chance), making December the driest month.
Historical Climate Trend
30-Year Analysis+2.86°C
Total over 30 years
+0.95°C
Per decade
Linear regression analysis of historical maximum temperatures for Tromsø, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)July
Best months to visit
5°C
Avg High
Based on 30 years of NASA satellite data,Tromsø receives approximately 946mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
3.2°
2024 Avg
5.7°
2040 Proj
6.3°
+0.95°C
per decade (observed)
+0.40°C
per decade (CMIP6)
🌡️ Tromsø has warmed by +2.9°C since 1995. By 2040, an additional +0.6°C is projected (based on CMIP6 rate of 0.401°C/decade), for a total of +3.5°C from 1995 baseline.
NASA POWER (1995-2024) + CMIP6 (CMCC_CM2_VHR4, EC_Earth3P_HR, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, NICAM16_8S)
Travel Intelligence
Exclusive flight analytics & health data for Tromsø
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Quieter airport
0
slots per day
Peak
Jan
Low
Nov
Monthly Traffic Distribution
Key Connections
Health & Safety Advisory
CDC travel health recommendations
COVID-19
All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.
Hepatitis A
Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.
Hepatitis B
Recommended for unvaccinated travelers younger than 60 years old traveling to Norway. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Norway.
Measles
Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.
Rabies
Dogs infected with rabies are not commonly found in Norway.If rabies exposures occur while in Norway, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.
Tick-borne Encephalitis
For travelers moving or traveling toTBE-endemic areasTBE vaccineis recommended for persons who will haveextensiveexposure to ticks based on their planned outdoor activities and itinerary.TBE vaccine may be considered for persons who might engage in outdoor activities in areas ticks are likely to be found.
+1 more
Source: CDC Travelers' Health
View Complete Health GuideTromsø Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | -5°C | 38% | ❄️ Cold |
| February | -4°C | 38% | ❄️ Cold |
| March | -2°C | 42% | ❄️ Cold |
| April | 2°C | 42% | ❄️ Cold |
| May | 7°C | 38% | Neutral |
| June | 13°C | 40% | Neutral |
| July | 17°C | 33% | 😊 Pleasant |
| August | 16°C | 38% | Neutral |
| September | 11°C | 46% | 🌧️ Rainy |
| October | 4°C | 43% | ❄️ Cold |
| November | -1°C | 38% | ❄️ Cold |
| December | -4°C | 33% | ❄️ Cold |
Similar Climate Destinations
Discover destinations with weather similar to Tromsø
Reykjavik
Iceland
Juneau
United States
Banff
Canada
Helsinki
Finland
Ulaanbaatar
Mongolia
Bergen
Norway
These destinations share similar weather patterns with Tromsø. Perfect alternatives if you're looking for the same climate in a different location.
Tromsø Weather FAQ
When is the best time to visit Tromsø?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, July are usually great choices.
When is the hottest month in Tromsø?
July is historically the hottest month in Tromsø with average highs of 17°C.
When does it rain the most in Tromsø?
September typically sees the highest probability of rain (46%).
Is Tromsø expensive?
Prices vary by season. The "Perfect" weather months usually coincide with peak tourist season and higher prices, while the rainy or cold months offer better deals.