Tartu
September
Weather in Tartu for September 2026
Your guide to Tartu weather in September - trends and predictions
Until now, September 2026 in Tartu is cooler than usual, with temperatures averaging 16.7 °C, this is 3.3 °C below the typical seasonal average.
Expect cooler weather in the next days in Tartu with the forecast suggesting a temperature of 14.1 °C, lower than the historical average.
In general, the average temperature in Tartu at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16 °C by the end of September.
Tartu experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 33.2 mm.
Temperatures
Rain 🌧️
24
Dry days
6
Rainy days
0
Snow days
20°/10°
Temperatures
15 km/h
Avg max wind
73 %
Avg humidity
Tartu Weather September
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Temperatures trend during September in Tartu
See the weather trend as well as the moving average line
September weather in Tartu day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Fog | 21° /11° | 2.1 mm | 4 | |
| 2 Sept. |  Light rain shower | 21° /11° | 3.7 mm | 4 | |
| 3 Sept. | Light rain shower | 21° /11° | 2.3 mm | 4 | |
| 4 Sept. | Light rain shower | 21° /12° | 2.4 mm | 4 | |
| 5 Sept. |  Overcast | 22° /12° | 0.3 mm | 4 | |
| 6 Sept. |  Sunny | 21° /10° | 0 mm | 5 | |
| 7 Sept. | Sunny | 21° /10° | 0 mm | 5 | |
| 8 Sept. |  Cloudy | 23° /11° | 0 mm | 5 | |
| 9 Sept. | Cloudy | 24° /12° | 0.9 mm | 5 | |
| 10 Sept. |  Partly cloudy | 21° /11° | 2.6 mm | 5 | |
| 11 Sept. | Sunny | 21° /11° | 0.7 mm | 5 | |
| 12 Sept. | Overcast | 21° /11° | 0.1 mm | 4 | |
| 13 Sept. | Patchy rain possible | 21° /13° | 3.4 mm | 4 | |
| 14 Sept. | Patchy rain possible | 20° /11° | 4.5 mm | 4 | |
| 15 Sept. | Partly cloudy | 19° /9° | 0.4 mm | 4 | |
| 16 Sept. | Sunny | 20° /10° | 2.1 mm | 4 | |
| 17 Sept. | Patchy rain possible | 20° /10° | 1.1 mm | 4 | |
| 18 Sept. | Sunny | 18° /8° | 0.2 mm | 4 | |
| 19 Sept. | Light rain shower | 19° /10° | 2.9 mm | 4 | |
| 20 Sept. |  Light drizzle | 19° /10° | 1.5 mm | 4 | |
| 21 Sept. | Fog | 20° /10° | 1 mm | 4 | |
| 22 Sept. | Sunny | 18° /8° | 0.2 mm | 4 | |
| 23 Sept. | Light rain | 17° /7° | 2.8 mm | 3 | |
| 24 Sept. | Fog | 16° /6° | 3.8 mm | 3 | |
| 25 Sept. | Mist | 15° /7° | 1.8 mm | 3 | |
| 26 Sept. | Overcast | 18° /8° | 1.4 mm | 4 | |
| 27 Sept. | Sunny | 16° /9° | 1.2 mm | 1.9 | |
| 28 Sept. | Sunny | 16° /8° | 0 mm | 2 | |
| 29 Sept. | Overcast | 17° /8° | 0 mm | 1.4 | |
| 30 Sept. | Overcast | 14° /12° | 0 mm | 0.9 | |
| Next | |||||
Important Notice
Our weather forecast for Tartu in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Tartu forecast closer to your planned date for the most up-to-date weather information.
Change Month
Tartu in September - FAQ
What are the expected maximum and minimum temperatures in Tartu during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Tartu during September?
In September, Tartu can expect light to moderate rainfall, totaling 33.2 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Tartu during September?
The average wind speed in Tartu during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Tartu
Explore the daily rainfall trends and prepare for Tartus September weather 💧
Typically, Tartu has 6 rainy days in September with a total of 33.2 mm of rainfall.
UV exposure in Tartu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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