Barrie climate
Barrie (Ontario, Canada) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 7 °C45 °F, and about 623 mm25 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Barrie climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −326 | −1014 | −720 | 441.7 | 30 |
| Feb | −327 | −1014 | −720 | 411.6 | 28 |
| Mar | 236 | −621 | −229 | 491.9 | 28 |
| Apr | 949 | 032 | 540 | 532.1 | 15 |
| May | 1762 | 643 | 1152 | 582.3 | 1 |
| Jun | 2272 | 1254 | 1763 | 562.2 | 0 |
| Jul | 2679 | 1661 | 2170 | 522.0 | 0 |
| Aug | 2578 | 1661 | 2169 | 502.0 | 0 |
| Sep | 2271 | 1254 | 1762 | 512.0 | 0 |
| Oct | 1356 | 642 | 1049 | 632.5 | 2 |
| Nov | 643 | 032 | 338 | 542.1 | 15 |
| Dec | 032 | −522 | −327 | 512.0 | 28 |
| Year | 2679 | −1014 | 745 | 62325 | 147 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 91% | 81% | 1.3 | 9:12 |
| Feb | 89% | 80% | 2.2 | 10:23 |
| Mar | 83% | 71% | 3.5 | 11:47 |
| Apr | 77% | 68% | 4.6 | 13:24 |
| May | 75% | 67% | 5.5 | 14:46 |
| Jun | 72% | 62% | 6.1 | 15:31 |
| Jul | 68% | 57% | 6.1 | 15:13 |
| Aug | 69% | 57% | 5.2 | 14:01 |
| Sep | 71% | 56% | 4.0 | 12:27 |
| Oct | 78% | 70% | 2.4 | 10:53 |
| Nov | 83% | 76% | 1.5 | 9:32 |
| Dec | 89% | 83% | 1.0 | 8:51 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Barrie is like
The warmest month is July, with an average high of 26 °C79 °F and a low of 16 °C61 °F. The coldest is January, when highs average −3 °C26 °F and lows −10 °C14 °F. Seasons are strongly marked: the warmest month is on average 27.7 °C49.9 °F warmer than the coldest.
Annual precipitation is moderate at about 623 mm25 in. Rain is spread fairly evenly through the year. The wettest month is October (63 mm2.5 in), the driest is February (41 mm1.6 in).
Relative humidity ranges from 68% in July to 91% in January. The clearest skies (lowest average cloud amount, 56%) are typical of September. Average wind speed near the ground ranges from 4 km/h (3 mph) in June to 11 km/h (7 mph) in February. Daylight lasts from about 8.9 hours in December to 15.5 hours in June.
A lasting snow cover is typical in December–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 17 cm).
Best time to visit Barrie
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 22 °C71 °F to 26 °C79 °F with 50 mm2.0 in to 56 mm2.2 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −3 °C26 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Barrie
- Winter (December–February) — highs −326 to 0 °C32 °F, lows −1014 to −5 °C22 °F, about 45 mm1.8 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 236 to 17 °C62 °F, lows −621 to 6 °C43 °F, about 53 mm2.1 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Summer (June–August) — highs 2272 to 26 °C79 °F, lows 1254 to 16 °C61 °F, about 53 mm2.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
- Autumn (September–November) — highs 643 to 22 °C71 °F, lows 032 to 12 °C54 °F, about 56 mm2.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Barrie compares
Compared with Markham, about 67 km to the southeast, Barrie is on average 1 °C1.7 °F cooler and receives 14% less precipitation (623 mm25 in vs 723 mm28 in). The difference is largest in June (1.4 °C2.6 °F cooler).
Of the 40 places in Canada covered by World Climates, Barrie is the 22nd warmest by annual mean temperature and the 31st wettest by annual precipitation. See all of them on the Canada climate page.
Places in other countries with the most similar temperature and rainfall pattern: Green Bay (United States, Dfb), Kitami (Japan, Dfb) and Obihiro (Japan, Dfb).
Nearby places
- Markham 67 km · 8 °C47 °F · 723 mm28 in
- Ajax 79 km · 9 °C48 °F · 719 mm28 in
- Toronto 80 km · 9 °C48 °F · 774 mm30 in
- Brampton 80 km · 8 °C47 °F · 770 mm30 in
- Oshawa 86 km · 9 °C47 °F · 719 mm28 in
- Guelph 106 km · 8 °C46 °F · 770 mm30 in
- Kitchener 128 km · 8 °C46 °F · 762 mm30 in
- St. Catharines 141 km · 10 °C50 °F · 872 mm34 in
Frequently asked questions
What is the warmest month in Barrie?
July is the warmest month in Barrie, with an average high of 26 °C (79 °F) and an average low of 16 °C (61 °F).
What is the coldest month in Barrie?
January is the coldest month, with an average high of -3 °C (26 °F) and an average low of -10 °C (14 °F).
When does it rain the most in Barrie?
October is the wettest month with about 63 mm (2.5 in) of precipitation; February is the driest with about 41 mm (1.6 in).
What is the best time to visit Barrie?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.