Weather in Riga in September
In an average September, Riga sees a daily high around 16°C and a low around 11°C, based on 1980–2026 of local climate records.
| Average high | 16°C |
|---|---|
| Typical high range | 12°C to 20°C |
| Average low | 11°C |
| Typical low range | 7°C to 14°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
27°C
1992-09-01
Lowest
7°C
1986-09-27
Low
Highest
18°C
2025-09-07
Lowest
1°C
1993-09-30
Feels-like
Highest
29°C
1992-09-01
Lowest
-5°C
1986-09-28
Humidity
Highest
15.6 g/m³
2025-09-07
Lowest
4.5 g/m³
1986-09-28
Wind
Highest
53 km/h
1983-09-23
Lowest
7 km/h
1992-09-12
Gust
Highest
93 km/h
1983-09-23
Lowest
12 km/h
2014-09-03
Precip
Wettest
152 mm
2017
Driest
29 mm
2000
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