Weather in Riga for September 2025
In general, the average temperature in Riga at the beginning of September is 21.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 18.6 °C by the end of September.
Riga sees moderate rainfall in September, averaging 7 rainy days.
Is September a good time to visit Riga? check out the best time to travel to Riga page.
- New! Chat with our AI weatherman - it’s amazing and free.
Riga in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 18° | 2 20° | 3 22° | 4 24° | 5 24° | 6 21° | 7 21° |
8 23° | 9 23° | 10 21° | 11 23° | 12 22° | 13 22° | 14 21° |
15 18° | 16 22° | 17 23° | 18 21° | 19 21° | 20 18° | 21 21° |
22 21° | 23 20° | 24 20° | 25 19° | 26 19° | 27 20° | 28 20° |
29 17° | 30 15° |
You can click on date
Temperatures trend during September in Riga
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 18° /12° | 5.1 mm | 4 | |
2 Sept. | Light rain shower | 20° /12° | 9.5 mm | 5 | |
3 Sept. | Light rain shower | 22° /12° | 2.1 mm | 5 | |
4 Sept. | Mist | 24° /13° | 0 mm | 6 | |
5 Sept. | Cloudy | 24° /14° | 0 mm | 6 | |
6 Sept. | Overcast | 21° /12° | 0 mm | 5 | |
7 Sept. | Overcast | 21° /11° | 0 mm | 6 | |
8 Sept. | Sunny | 23° /12° | 0 mm | 7 | |
9 Sept. | Mist | 23° /13° | 0 mm | 6 | |
10 Sept. | Partly cloudy | 21° /13° | 1.7 mm | 5 | |
11 Sept. | Sunny | 23° /14° | 0.9 mm | 6 | |
12 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
13 Sept. | Partly cloudy | 22° /15° | 0.6 mm | 6 | |
14 Sept. | Overcast | 21° /13° | 1.3 mm | 5 | |
15 Sept. | Partly cloudy | 18° /12° | 0 mm | 5 | |
16 Sept. | Sunny | 22° /11° | 0 mm | 6 | |
17 Sept. | Overcast | 23° /12° | 0 mm | 6 | |
18 Sept. | Cloudy | 21° /12° | 0 mm | 6 | |
19 Sept. | Light rain shower | 21° /13° | 1.2 mm | 5 | |
20 Sept. | Patchy rain possible | 18° /12° | 0.1 mm | 5 | |
21 Sept. | Sunny | 21° /12° | 0 mm | 6 | |
22 Sept. | Sunny | 21° /11° | 0 mm | 6 | |
23 Sept. | Light rain shower | 20° /11° | 1 mm | 5 | |
24 Sept. | Patchy rain possible | 20° /11° | 0 mm | 5 | |
25 Sept. | Sunny | 19° /11° | 0.4 mm | 5 | |
26 Sept. | Cloudy | 19° /11° | 1.6 mm | 5 | |
27 Sept. | Partly cloudy | 20° /14° | 3.4 mm | 5 | |
28 Sept. | Sunny | 20° /12° | 1.1 mm | 5 | |
29 Sept. | Overcast | 17° /10° | 0.7 mm | 4 | |
30 Sept. | Light rain shower | 15° /9° | 1.7 mm | 4 | |
Next |
Riga in September - FAQ
What to pack to Riga in September?
As you prepare for your trip to Riga in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Riga, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Quick links
Get accurate weather forecasts for Riga, located at latitude 56.946 and longitude 24.106. Stay updated with localized weather information tailored for Riga.