Tartu Weather in September
September in Tartu brings moderate temperatures, with daytime highs of 17°C (63°F) and nights around 8°C (46°F). Expect around 60 mm (2.4 in) of rainfall during the month.
Rainfall in Tartu in September
Based on our climate data of the past 30 years, about 16 days of rain are anticipated, with 60 mm (2.4 in) on average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Tartu in September
Temperatures in Tartu in September top out at 17°C (63°F) and drop to 8°C (46°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Tartu in September
The city usually sees around 138 hours of sunlight, indicating a moderately sunny period.For Tartu itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Tartu Temperature in September
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Tartu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tartu - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tartu typically drop from around 18°C (64°F) at the start of September to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 10°C (50°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Tartu in September
Browse day-by-day weather records for Tartu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tartu historical weather extremes in September
Based on 49 years of weather observations in Tartu between 1976 and 2025, these are the recorded extremes.
- Tartu recorded its highest September temperature of 30°C (86°F) on September 1, 1992.
- The coldest September day was on September 27, 1986, with a maximum of 3°C (37°F).
- The coldest night in September in Tartu was on September 26, 1977, with a minimum of -4°C (25°F).
- The wettest September day on record brought 30 mm (1.2 in) of precipitation to Tartu (September 5, 1979).
Best Places in Estonia in September
Find out more about the weather in Estonia and which places have the best travel conditions in this month. See all of Estonia in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Tartu in September
For Tartu in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Tartu in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Tartu 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Tartu climate overview or explore weather in Estonia.
Popular in September
Where to go in September - average daytime high across popular destinations.
Pärnu
18°C (64°F) Tartu
17°C (63°F) Otepää17°C (63°F) Narva-Jõesuu16°C (61°F) Narva17°C (63°F) Haapsalu
16°C (61°F) Tallinn17°C (63°F) Kuressaare17°C (63°F) 
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