Oshawa
Oshawa is a city in Ontario, Canada, close to the sea. It has a population of about 175,383 (2021). The climate is classified as hot-summer humid continental (Köppen Dfa), with warm summers, cold winters and precipitation in every season.
Best: May–Jun · Sep. Warmth, sunshine and dry days, month by month.
Oshawa at a glance
The months with the highest weather score
Average high in July
Average low in January
78 mm of rain
61 mm of rain
August
within 15 km
How Oshawa has grown
People living in the built-up area (127 km² today), every five years since 1975; 2030 is the projection.
+221%97k in 1975 → 312k in 2025Weather in Oshawa
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Sunny · wind 13 km/h · humidity 72%
When to go to Oshawa
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 17 | 26 | 24 | 39 | 71 | 67 | 56 | 61 | 71 | 48 | 20 | 16 |
| High | -1° | 0° | 5° | 13° | 20° | 25° | 28° | 27° | 22° | 15° | 8° | 2° |
| Low | -9° | -9° | -4° | 2° | 8° | 14° | 17° | 16° | 12° | 6° | 0° | -5° |
| Rain (mm) | 69 | 61 | 62 | 79 | 89 | 87 | 88 | 90 | 97 | 82 | 94 | 78 |
| Wet days | 14 | 11 | 12 | 12 | 11 | 13 | 14 | 14 | 12 | 14 | 13 | 16 |
| Sea | 4° | 3° | 3° | 4° | 7° | 14° | 19° | 21° | 19° | 13° | 8° | 5° |
What's on in Oshawa
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Music venues
Monuments and museums in Oshawa
More museums: Parkwood Estate
Outdoors around Oshawa
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Oshawa
Wildlife in October
The birds and mammals of Canada seen most this month, compared with the rest of their year.
The sky over Oshawa
Earthquakes around Oshawa
The last 30 days within 300 km, and the record since 1950.
Tropical storms · Oshawa
Universities and research institutes
Towns and villages around Oshawa
Each with its own page: weather, climate and the best time to visit.
Oshawa from above
Getting to Oshawa
Places near Oshawa
Places with a climate like Oshawa
Matched month by month on temperature, rain and sunshine.
95% alikeMilwaukee
96% alikeBay City
95% alikeWest Allis
95% alikeMarysville
96% alikeCaledonia
96% alike