Weather on August 23 in Ottawa
Historical weather data for August 23 in Ottawa, Canada
Based on 56 years of data from OTTAWA CDA RCS
About This Date
August 23rd in Ottawa, Canada typically brings pleasant summer weather, with average highs around 24°C and lows near 14°C. Over 56 years of records, the warmest August 23rd was in 2021 (25°C average), while the coldest was 1971 (13°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 34% of August 23rd dates historically, with the wettest August 23rd recording 0.99" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for August 23rd in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 24°C (75°F) | 18°C (64°F) | -- |
| 2025 | 30°C (86°F) | 12°C (53°F) | 0 mm |
| 2024 | 25°C (77°F) | 12°C (53°F) | 0 mm |
| 2023 | 27°C (80°F) | 14°C (58°F) | 0 mm |
| 2022 | 24°C (75°F) | 18°C (64°F) | -- |
| 2021 | 28°C (83°F) | 22°C (71°F) | 0 mm |
| 2020 | 28°C (83°F) | 18°C (65°F) | 20 mm |
| 2019 | 23°C (73°F) | 15°C (59°F) | 0 mm |
| 2018 | 26°C (78°F) | 13°C (55°F) | 0 mm |
| 2017 | 23°C (73°F) | 15°C (59°F) | 0 mm |
| 2016 | 28°C (82°F) | 10°C (50°F) | 0 mm |
| 2015 | 27°C (80°F) | 12°C (54°F) | 0 mm |
| 2014 | 26°C (78°F) | 17°C (62°F) | 0 mm |
| 2013 | 22°C (72°F) | 14°C (57°F) | 0 mm |
| 2012 | 28°C (82°F) | 14°C (58°F) | 0 mm |
| 2011 | 24°C (75°F) | 11°C (51°F) | 0 mm |
| 2010 | 24°C (75°F) | 16°C (60°F) | 2 mm |
| 2009 | 26°C (78°F) | 17°C (62°F) | 0 mm |
| 2008 | 28°C (83°F) | 17°C (62°F) | 0 mm |
| 2007 | 25°C (77°F) | 17°C (63°F) | 11 mm |
| 2006 | 21°C (70°F) | 11°C (51°F) | 0 mm |
| 2005 | 20°C (68°F) | 13°C (55°F) | 0 mm |
| 2004 | 21°C (70°F) | 14°C (57°F) | 0 mm |
| 2003 | 23°C (73°F) | 14°C (58°F) | 0 mm |
| 2002 | 23°C (74°F) | 12°C (53°F) | 0 mm |
| 2001 | 26°C (79°F) | 16°C (61°F) | 1 mm |
| 2000 | 18°C (65°F) | 14°C (57°F) | 6 mm |
| 1999 | 29°C (84°F) | 16°C (60°F) | 0 mm |
| 1998 | 22°C (72°F) | 13°C (55°F) | 15 mm |
| 1997 | 22°C (71°F) | 13°C (56°F) | 1 mm |
| 1996 | 28°C (82°F) | 21°C (69°F) | 0 mm |
| 1995 | 24°C (76°F) | 11°C (52°F) | 0 mm |
| 1994 | 22°C (71°F) | 9°C (49°F) | 0 mm |
| 1993 | 26°C (79°F) | 9°C (48°F) | 6 mm |
| 1992 | 28°C (82°F) | 13°C (56°F) | 0 mm |
| 1991 | 20°C (68°F) | 14°C (58°F) | 0 mm |
| 1990 | 28°C (82°F) | 14°C (58°F) | 0 mm |
| 1989 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 1988 | 22°C (71°F) | 9°C (48°F) | 8 mm |
| 1987 | 19°C (67°F) | 11°C (52°F) | 0 mm |
| 1986 | 20°C (68°F) | 12°C (54°F) | 8 mm |
| 1985 | 24°C (76°F) | 13°C (55°F) | 0 mm |
| 1984 | 18°C (64°F) | 16°C (60°F) | 24 mm |
| 1983 | 24°C (76°F) | 13°C (55°F) | 0 mm |
| 1982 | 23°C (73°F) | 12°C (53°F) | 0 mm |
| 1981 | 27°C (81°F) | 16°C (60°F) | 4 mm |
| 1980 | 27°C (80°F) | 16°C (61°F) | 0 mm |
| 1979 | 25°C (77°F) | 13°C (55°F) | 18 mm |
| 1978 | 22°C (72°F) | 18°C (64°F) | 25 mm |
| 1977 | 22°C (72°F) | 12°C (54°F) | 2 mm |
| 1976 | 24°C (75°F) | 19°C (66°F) | 0 mm |
| 1975 | 26°C (78°F) | 7°C (45°F) | 0 mm |
| 1974 | 31°C (87°F) | 16°C (61°F) | 1 mm |
| 1973 | 21°C (70°F) | 7°C (45°F) | 0 mm |
| 1972 | 24°C (75°F) | 18°C (65°F) | 6 mm |
| 1971 | 15°C (59°F) | 10°C (50°F) | 0 mm |