What is the weather like in Tallinn in September?

Expect temperatures between 10°C and 16°C with 25% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Tallinn in September?

Tallinn in September scores 63/100 based on 30 years of climate data. Worthwhile timing with some trade-offs.

Who should visit Tallinn in September?

September in Tallinn is ideal for: Cultural tourists, Business travelers.

Tallinn Weather in September | 30-Year Forecast

Avg High

16°C

Hottest around day 6

Avg Low

10°C

Coolest around day 30

Rainy Days

9days

25% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Gulf of Finland(Soome laht)

17.4°C

Monthly Average

Water Feel

💧Refreshing

Consider a wetsuit for extended swimming

Swim Rating

🏄Cool, wetsuits recommended

Based on average sea surface temperature

Body of Water

Gulf of Finland

Soome laht

Tallinn coastline

Essential Travel Info for Tallinn

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

EUR

€ Euro

Language

Estonian

Driving

Right side

Connect

Wi-Fi are available in many public areas...

Safety

High Safety

GPI: 1.662

Travel Intelligence

Exclusive flight analytics & health data for Tallinn

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Low Traffic

23/ 100

Traffic Index

Quieter airport

Peak Daily Arrivals

slots per day

Peak

Jun

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Helsinki Vantaa (HEL)

Riga (RIX)

Copenhagen Kastrup (CPH)

Stockholm -Arlanda (ARN)

Warsaw Chopin (WAW)

Health & Safety Advisory

CDC travel health recommendations

7 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

Recommended for unvaccinated travelers one year old or older going to Estonia.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Estonia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Estonia.

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 Estonia.If rabies exposures occur while in Estonia, rabies vaccines may only be available in larger suburban/urban medical facilities.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 Guide

Is September a Good Time to Visit Tallinn?

👌Worthwhile timing with some trade-offs(63/100)

Short Answer

Tallinn's September delivers on its reputation: 16°C, 25% rain, 8.3h sunshine. The trade-off? Peak crowds and prices at 95% capacity.

Decision Factors

Vaccinations required

Yellow Fever

Very high humidity

80% average humidity

Peak tourist season

95% of annual peak - expect crowds and peak prices

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Tuberculosis (TB)

Plenty of sunshine

8.3h of sunshine daily

Calm, family-friendly seas

0.41m wave height - Lake-like

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

🏖️
Beach lovers
Sea temperature only 17.4°C - too cold for comfortable swimming
💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
80% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Tallinn in September averages 16°C with 25% precipitation probability."

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

Frequently Asked Questions: Tallinn in September

What are the temperatures in Tallinn in September?

Daytime highs average 16°C, nights drop to 10°C. Temperatures remain fairly consistent.

How many rainy days in Tallinn in September?

Expect around 9 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Tallinn in September?

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

Is September peak season in Tallinn?

This is shoulder season—moderate prices and manageable crowds.

Tallinn Weather in September