Riga Weather in September
In September, Riga averages a high of 16°C (61°F) and a low of 8°C (47°F), from 33 years of daily records (1971–2004).
16°C
Average high
61°F
8°C
Average low
47°F
29°C
Record high
85°F · September 1, 1992
-4°C
Record low
25°F · September 21, 1996
What September Is Like in Riga
- 5 of the 10 warmest Septembers on record in Riga have come since 1990.
- On average, 0.5 nights in September drop below freezing.
- September in Riga has become 0.6°C (1.1°F) warmer on average: the 1990–2004 average against 1970–1989.
- The warmest September in the record was 1999; the coldest was 1973.
At least 1 mm of rain falls on 43% of September days, and the month averages 79 mm in total.
Warmest: 1975 (20.4°C)Latest: 2004 (17.7°C)10-year averageLong-run average (16.2°C)
Look Up a Day in September
See the weather in Riga on any September date, year by year.
Source: NOAA GHCN-Daily, Riga (1971–2004). The stations near Riga stopped reporting in 2004, so these figures end there. Averages cover 1971–2004. How we compute this