Weather on September 17 in Riga
Historical weather data for September 17 in Riga, Latvia
Based on 47 years of data from RIGA
About This Date
September 17th in Riga, Latvia typically brings mild fall weather, with average highs around 16°C and lows near 8°C. Over 47 years of records, the warmest September 17th was in 2015 (21°C average), while the coldest was 1973 (6°C) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 30% of September 17th dates historically, with the wettest September 17th recording 2.69" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 17th in Riga? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 17°C (63°F) | 13°C (56°F) | -- |
| 2024 | 23°C (74°F) | 12°C (54°F) | -- |
| 2023 | -- | 11°C (51°F) | 0 mm |
| 2022 | 16°C (60°F) | 12°C (54°F) | -- |
| 2017 | 13°C (56°F) | 8°C (46°F) | -- |
| 2016 | 16°C (60°F) | 8°C (46°F) | -- |
| 2015 | 27°C (80°F) | 14°C (58°F) | -- |
| 2014 | -- | 4°C (40°F) | -- |
| 2013 | -- | 12°C (54°F) | -- |
| 2012 | 20°C (68°F) | 13°C (56°F) | -- |
| 2011 | 17°C (62°F) | -- | -- |
| 2010 | 14°C (58°F) | 9°C (49°F) | 5 mm |
| 2009 | 17°C (62°F) | 9°C (49°F) | 8 mm |
| 2004 | 16°C (61°F) | 6°C (42°F) | -- |
| 2003 | 17°C (63°F) | 9°C (48°F) | -- |
| 2002 | 16°C (61°F) | 8°C (46°F) | 1 mm |
| 2001 | 21°C (69°F) | 13°C (56°F) | -- |
| 2000 | 14°C (58°F) | 3°C (37°F) | -- |
| 1999 | 18°C (65°F) | -- | -- |
| 1998 | 15°C (59°F) | 9°C (48°F) | 1 mm |
| 1997 | 19°C (66°F) | 11°C (51°F) | -- |
| 1996 | 13°C (55°F) | -- | -- |
| 1995 | 15°C (59°F) | -- | 0 mm |
| 1994 | 16°C (61°F) | -- | 0 mm |
| 1993 | 9°C (49°F) | 6°C (43°F) | 15 mm |
| 1992 | 14°C (58°F) | 11°C (51°F) | 68 mm |
| 1991 | 16°C (61°F) | 8°C (46°F) | 1 mm |
| 1990 | 12°C (53°F) | 6°C (43°F) | 0 mm |
| 1989 | 18°C (65°F) | 11°C (51°F) | 0 mm |
| 1988 | 15°C (59°F) | 8°C (47°F) | 0 mm |
| 1987 | 13°C (55°F) | 9°C (49°F) | 9 mm |
| 1986 | 15°C (59°F) | 6°C (43°F) | 0 mm |
| 1985 | 13°C (56°F) | 9°C (49°F) | 15 mm |
| 1984 | 17°C (62°F) | 9°C (49°F) | 0 mm |
| 1983 | 21°C (70°F) | 14°C (57°F) | 8 mm |
| 1982 | 19°C (67°F) | 6°C (43°F) | 0 mm |
| 1981 | 12°C (53°F) | 6°C (42°F) | 0 mm |
| 1980 | 16°C (60°F) | 7°C (44°F) | 0 mm |
| 1979 | 11°C (51°F) | 2°C (36°F) | 18 mm |
| 1978 | 14°C (58°F) | 6°C (43°F) | 0 mm |
| 1977 | 10°C (50°F) | 7°C (44°F) | 8 mm |
| 1976 | 19°C (66°F) | 12°C (53°F) | 0 mm |
| 1975 | 23°C (73°F) | 9°C (48°F) | 0 mm |
| 1974 | 16°C (61°F) | 5°C (41°F) | 0 mm |
| 1973 | 11°C (52°F) | 1°C (33°F) | 0 mm |
| 1972 | 14°C (58°F) | 11°C (52°F) | 23 mm |
| 1971 | 12°C (54°F) | 7°C (44°F) | 2 mm |