What is the weather like in Helsinki in August?

Expect temperatures between 14°C and 19°C with 29% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Helsinki in August?

Helsinki in August scores 65/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit Helsinki in August?

August in Helsinki is ideal for: Budget travelers, Cultural tourists, Business travelers.

Helsinki Weather in August | 30-Year Forecast

Avg High

19°C

Hottest around day 4

Avg Low

14°C

Coolest around day 31

Rainy Days

28days

29% avg rain chance

Sunshine

8hrs/day

Summer season

Sea Temperature in August

Gulf of Finland(Suomenlahti)

19.5°C

Monthly Average

Water Feel

🏊Pleasant

Comfortable for most swimmers

Swim Rating

👍Good for swimming

Based on average sea surface temperature

Body of Water

Gulf of Finland

Suomenlahti

Helsinki coastline

Essential Travel Info for Helsinki

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

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

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

Major Hub

81/ 100

Traffic Index

Extremely busy airport

Peak Daily Arrivals

slots per day

Peak

Jun

Low

Aug

Monthly Traffic Distribution

204

Jan

202

Feb

194

Mar

226

Apr

232

May

613

Jun

600

Jul

176

Aug

598

Sep

542

Oct

502

Nov

579

Dec

Traffic Level

Low Season

Key Connections

Stockholm -Arlanda (ARN)

Rovaniemi (RVN)

Copenhagen Kastrup (CPH)

Oulu / Oulunsalo Oulu (OUL)

Tallinn Lennart Meri (TLL)

Health & Safety Advisory

CDC travel health recommendations

8 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.

+2 more

Source: CDC Travelers' Health

View Complete Health Guide

Is August a Good Time to Visit Helsinki?

👍Solid choice for most travelers(65/100)

Short Answer

Smart travelers know August in Helsinki: 19°C temperatures, 29% rain probability, and only 29% of peak-season crowds. Better prices, similar experience.

Decision Factors

Vaccinations required

Yellow Fever

Very high humidity

80% average humidity

Off-peak season - fewer crowds

Only 29% of peak - better deals and quiet crowds

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Parvovirus B19

Plenty of sunshine

11.1h of sunshine daily

Calm, family-friendly seas

0.43m wave height - Lake-like

Good For

💰
Budget travelers
Off-peak pricing with acceptable weather conditions
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👴
Elderly travelers
80% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Helsinki in August averages 19°C with 29% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Helsinki in August

What are the temperatures in Helsinki in August?

Daytime highs average 19°C, nights drop to 14°C. Temperatures remain fairly consistent.

How many rainy days in Helsinki in August?

Expect around 28 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Helsinki in August?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is August peak season in Helsinki?

This is shoulder season—moderate prices and manageable crowds.

Helsinki Weather in August