Peak in July
Coolest in February
Heavy in November
Peak in dry season
Sea Temperature
Gulf of Finland(Suomenlahti)
Annual Average
Consider a wetsuit for extended swimming
Based on average sea surface temperature
Suomenlahti
Helsinki coastline
Helsinki 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 Helsinki
Currency
EUR
€ Euro
Language
Finnish
+1 more
Driving
Right side
Connect
Much of Helsinki is blanketed withWi-Fi ...
Safety
Very High Safety
GPI: 1.439
Best Time to Visit Helsinki
Location, climate overview & historical trends
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📍 60.1699° N, 24.9384° E
Open in Google MapsHelsinki is a prominent destination in Finland.
Located at 60.17°N latitude,Helsinki experiences a subarctic climate with cold winters and mild summers.
Based on 30 years of data, July is the warmest month (avg. 20°C), while February is the coolest. November sees the most rain (29% chance), making April the driest month.
Historical Climate Trend
30-Year Analysis+0.73°C
Total over 30 years
+0.25°C
Per decade
Linear regression analysis of historical maximum temperatures for Helsinki, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)June, July, August
Best months to visit
8°C
Avg High
Based on 30 years of NASA satellite data,Helsinki receives approximately 474mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
8°
2024 Avg
8.4°
2040 Proj
9.1°
+0.25°C
per decade (observed)
+0.47°C
per decade (CMIP6)
🌡️ Helsinki has warmed by +0.7°C since 1995. By 2040, an additional +0.7°C is projected (based on CMIP6 rate of 0.465°C/decade), for a total of +1.5°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 Helsinki
Smart Flight Estimator
Airport-to-Airport Logistics
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Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Extremely busy airport
0
slots per day
Peak
Jun
Low
Aug
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 Finland. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Finland.
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.
Polio
In Finland poliovirus has been identified in the past year.Travelers to Finland are at increased risk of exposure to poliovirus.Vaccine recommendations: Adults traveling to Finland who received a complete polio vaccination series as children may receive a single lifetime booster dose of inactivated polio vaccine; travelers who are unvaccinated or not fully vaccinated should receive a complete polio vaccination series before travel. Children who are not fully vaccinated will be considered for anaccelerated vaccination schedule.
Rabies
Dogs infected with rabies are not commonly found in Finland.If rabies exposures occur while in Finland, 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.
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Source: CDC Travelers' Health
View Complete Health GuideHelsinki Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | -1°C | 27% | ❄️ Cold |
| February | -2°C | 23% | ❄️ Cold |
| March | 1°C | 17% | ❄️ Cold |
| April | 6°C | 17% | Neutral |
| May | 12°C | 18% | Neutral |
| June | 17°C | 24% | 😊 Pleasant |
| July | 20°C | 27% | 😊 Pleasant |
| August | 19°C | 29% | 😊 Pleasant |
| September | 15°C | 25% | 😊 Pleasant |
| October | 9°C | 27% | Neutral |
| November | 4°C | 29% | ❄️ Cold |
| December | 1°C | 27% | ❄️ Cold |
Weather in Cities Near Helsinki
Explore climate data for popular destinations within easy reach
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Estonia
Turku
Finland
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Estonia
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Latvia
Stockholm
Sweden
Kaunas
Lithuania
Compare weather conditions with nearby destinations for your trip planning
Compare Helsinki Weather vs Popular Destinations
Similar Climate Destinations
Discover destinations with weather similar to Helsinki
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These destinations share similar weather patterns with Helsinki. Perfect alternatives if you're looking for the same climate in a different location.
Helsinki Weather FAQ
When is the best time to visit Helsinki?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, June, July, August are usually great choices.
When is the hottest month in Helsinki?
July is historically the hottest month in Helsinki with average highs of 20°C.
When does it rain the most in Helsinki?
November typically sees the highest probability of rain (29%).
Is Helsinki 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.