Weather on September 27 in Ottawa

Historical weather data for September 27 in Ottawa, Canada

Avg High19°C (66°F)
Avg Low9°C (48°F)
Warmest201723°C
Coldest19895°C

Based on 55 years of data from OTTAWA CDA

About This Date

September 27th in Ottawa, Canada typically brings mild fall weather, with average highs around 19°C and lows near 9°C. Over 55 years of records, the warmest September 27th was in 2017 (23°C average), while the coldest was 1989 (5°C) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 55% of September 27th dates historically, with the wettest September 27th recording 3.35" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.

Planning for September 27th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202521°C (70°F)13°C (55°F)--
202422°C (71°F)11°C (52°F)0"
202319°C (67°F)4°C (40°F)0"
202217°C (63°F)11°C (52°F)0"
202117°C (62°F)9°C (49°F)0.14"
202026°C (79°F)16°C (61°F)0"
201921°C (70°F)6°C (43°F)0.76"
201818°C (64°F)5°C (41°F)0"
201730°C (86°F)16°C (60°F)1.05"
201621°C (70°F)11°C (51°F)0"
201523°C (74°F)6°C (42°F)0"
201426°C (79°F)12°C (54°F)0"
201321°C (69°F)6°C (42°F)0"
201215°C (59°F)4°C (40°F)0"
201126°C (79°F)13°C (55°F)0"
201016°C (60°F)10°C (50°F)3.35"
200916°C (60°F)11°C (52°F)0.05"
200818°C (65°F)13°C (55°F)0.5"
200718°C (64°F)14°C (57°F)0.22"
200622°C (71°F)6°C (42°F)0"
200520°C (68°F)8°C (46°F)0.02"
200425°C (77°F)11°C (51°F)0"
200324°C (76°F)12°C (53°F)2.48"
200214°C (58°F)8°C (47°F)2.08"
200116°C (60°F)6°C (42°F)0.32"
200017°C (62°F)5°C (41°F)0.07"
199923°C (74°F)8°C (47°F)0"
199827°C (81°F)18°C (64°F)0.22"
199718°C (65°F)1°C (33°F)0"
199618°C (65°F)9°C (48°F)0.8"
199519°C (66°F)8°C (47°F)0"
199423°C (73°F)17°C (63°F)0.82"
199313°C (56°F)12°C (54°F)1.49"
199219°C (67°F)12°C (53°F)0.34"
199112°C (53°F)5°C (41°F)0.4"
199020°C (68°F)11°C (51°F)0"
198911°C (51°F)0°C (32°F)0"
198818°C (65°F)8°C (47°F)0.4"
198717°C (63°F)-1°C (31°F)0.14"
198614°C (57°F)4°C (40°F)0"
198515°C (59°F)13°C (56°F)1.5"
198413°C (56°F)-2°C (29°F)0"
198322°C (71°F)13°C (56°F)0"
198214°C (58°F)13°C (55°F)0.58"
198123°C (73°F)14°C (57°F)0.1"
198011°C (51°F)1°C (34°F)0.08"
197923°C (73°F)3°C (38°F)0"
197821°C (69°F)10°C (50°F)0.32"
197718°C (64°F)13°C (55°F)0.1"
197616°C (61°F)8°C (46°F)0.08"
197517°C (63°F)12°C (54°F)0.46"
197425°C (77°F)4°C (40°F)0.51"
197323°C (74°F)16°C (60°F)0.08"
197214°C (57°F)11°C (51°F)0"
197116°C (61°F)6°C (43°F)0"

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