Riga
September
Weather in Riga for September 2026
Your guide to Riga weather in September - trends and predictions
Dzeltenais vēja brīdinājums - See hour by hour.
Expect cooler weather in the next days in Riga with the forecast suggesting a temperature of 16.4 °C, lower than the historical average.
In general, the average temperature in Riga at the beginning of September is 18.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 17.1 °C by the end of September.
Riga experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 41.3 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
21
Dry days
9
Rainy days
0
Snow days
20°/12°
Temperatures
17 km/h
Avg max wind
72 %
Avg humidity
Riga Weather September
Move between months or click on a day
Temperatures trend during September in Riga
See the weather trend as well as the moving average line
September weather in Riga day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 19° /13° | 3.5 mm | 4 | |
| 2 Sept. | Light rain shower | 21° /12° | 5.7 mm | 4 | |
| 3 Sept. | Light rain shower | 22° /13° | 1.7 mm | 4 | |
| 4 Sept. | Light rain shower | 18° /14° | 7.9 mm | 2.1 | |
| 5 Sept. | Light rain shower | 16° /12° | 9.7 mm | 3.1 | |
| 6 Sept. | Patchy rain possible | 16° /13° | 3.6 mm | 1.5 | |
| 7 Sept. | Patchy rain possible | 18° /12° | 0.4 mm | 4 | |
| 8 Sept. |  Overcast | 21° /11° | 0 mm | 5 | |
| 9 Sept. | Overcast | 18° /13° | 1.5 mm | 4 | |
| 10 Sept. | Overcast | 15° /11° | 1.2 mm | 4 | |
| 11 Sept. |  Sunny | 17° /10° | 2.6 mm | 5 | |
| 12 Sept. | Overcast | 16° /11° | 0.1 mm | 4 | |
| 13 Sept. | Patchy rain possible | 15° /12° | 3.3 mm | 4 | |
| 14 Sept. | Overcast | 17° /10° | 1 mm | 4 | |
| 15 Sept. | Overcast | 16° /9° | 1.7 mm | 4 | |
| 16 Sept. | Patchy rain possible | 14° /10° | 1.4 mm | 3 | |
| 17 Sept. | Patchy rain possible | 13° /11° | 0.8 mm | 3 | |
| 18 Sept. |  Cloudy | 20° /11° | 0.6 mm | 5 | |
| 19 Sept. | Light rain shower | 20° /13° | 1.8 mm | 4 | |
| 20 Sept. | Patchy rain possible | 20° /12° | 0.1 mm | 5 | |
| 21 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
| 22 Sept. | Sunny | 20° /11° | 0.8 mm | 5 | |
| 23 Sept. | Light rain shower | 18° /10° | 1.3 mm | 4 | |
| 24 Sept. | Patchy rain possible | 18° /10° | 2.2 mm | 4 | |
| 25 Sept. | Sunny | 17° /9° | 0.4 mm | 4 | |
| 26 Sept. | Patchy rain possible | 18° /10° | 1.1 mm | 4 | |
| 27 Sept. |  Partly cloudy | 19° /12° | 2.3 mm | 5 | |
| 28 Sept. | Sunny | 19° /10° | 0.7 mm | 5 | |
| 29 Sept. | Overcast | 15° /8° | 0.5 mm | 4 | |
| 30 Sept. | Light rain shower | 14° /7° | 1.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Riga 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 Riga forecast closer to your planned date for the most up-to-date weather information.
Change Month
Riga in September - FAQ
What are the expected maximum and minimum temperatures in Riga during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Riga during September?
In September, Riga can expect light to moderate rainfall, totaling 41.3 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Riga during September?
The average wind speed in Riga during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Riga
Explore the daily rainfall trends and prepare for Rigas September weather 💧
Typically, Riga has 9 rainy days in September with a total of 41.3 mm of rainfall.
UV exposure in Riga during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Riga weather pages
You are here
Where is Riga?Get accurate weather forecasts for Riga, located at latitude 56.946 and longitude 24.106. Stay updated with localized weather information tailored for Riga.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.