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Weather in Riga for September 2025

Your guide to Riga weather in September - trends and predictions
  • 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.
Average dry days
23
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Riga in September average weather

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Temperatures trend during September in Riga

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
18° /12° 5.1 mm 4
2 Sept. Light rain shower
Light rain shower
20° /12° 9.5 mm 5
3 Sept. Light rain shower
Light rain shower
22° /12° 2.1 mm 5
4 Sept. Mist
Mist
24° /13° 0 mm 6
5 Sept. Cloudy
Cloudy
24° /14° 0 mm 6
6 Sept. Overcast
Overcast
21° /12° 0 mm 5
7 Sept. Overcast
Overcast
21° /11° 0 mm 6
8 Sept. Sunny
Sunny
23° /12° 0 mm 7
9 Sept. Mist
Mist
23° /13° 0 mm 6
10 Sept. Partly cloudy
Partly cloudy
21° /13° 1.7 mm 5
11 Sept. Sunny
Sunny
23° /14° 0.9 mm 6
12 Sept. Sunny
Sunny
22° /13° 0 mm 6
13 Sept. Partly cloudy
Partly cloudy
22° /15° 0.6 mm 6
14 Sept. Overcast
Overcast
21° /13° 1.3 mm 5
15 Sept. Partly cloudy
Partly cloudy
18° /12° 0 mm 5
16 Sept. Sunny
Sunny
22° /11° 0 mm 6
17 Sept. Overcast
Overcast
23° /12° 0 mm 6
18 Sept. Cloudy
Cloudy
21° /12° 0 mm 6
19 Sept. Light rain shower
Light rain shower
21° /13° 1.2 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
18° /12° 0.1 mm 5
21 Sept. Sunny
Sunny
21° /12° 0 mm 6
22 Sept. Sunny
Sunny
21° /11° 0 mm 6
23 Sept. Light rain shower
Light rain shower
20° /11° 1 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
20° /11° 0 mm 5
25 Sept. Sunny
Sunny
19° /11° 0.4 mm 5
26 Sept. Cloudy
Cloudy
19° /11° 1.6 mm 5
27 Sept. Partly cloudy
Partly cloudy
20° /14° 3.4 mm 5
28 Sept. Sunny
Sunny
20° /12° 1.1 mm 5
29 Sept. Overcast
Overcast
17° /10° 0.7 mm 4
30 Sept. Light rain shower
Light rain shower
15° /9° 1.7 mm 4
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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.

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 42 mm across approximately 7 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.

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

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Location coordinates 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.

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