Coquitlam climate
Coquitlam (British Columbia, Canada) has a temperate oceanic climate (Köppen Cfb). The average temperature over the year is 10 °C50 °F, and about 2,333 mm92 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Coquitlam climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 439 | −130 | 235 | 33613 |
| Feb | 541 | −130 | 235 | 1777.0 |
| Mar | 744 | 235 | 440 | 27511 |
| Apr | 1153 | 540 | 846 | 1576.2 |
| May | 1865 | 1049 | 1457 | 1114.4 |
| Jun | 2170 | 1355 | 1762 | 983.9 |
| Jul | 2577 | 1660 | 2068 | 582.3 |
| Aug | 2576 | 1660 | 2068 | 672.6 |
| Sep | 2169 | 1254 | 1662 | 1325.2 |
| Oct | 1458 | 745 | 1152 | 2479.7 |
| Nov | 846 | 337 | 541 | 36714 |
| Dec | 438 | −229 | 134 | 30812 |
| Year | 2577 | −229 | 1050 | 2,33392 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 98% | 81% | 0.9 | 8:37 |
| Feb | 96% | 75% | 1.7 | 10:04 |
| Mar | 95% | 81% | 2.6 | 11:44 |
| Apr | 87% | 78% | 3.9 | 13:39 |
| May | 79% | 71% | 5.2 | 15:18 |
| Jun | 80% | 71% | 5.5 | 16:13 |
| Jul | 78% | 50% | 6.2 | 15:50 |
| Aug | 78% | 50% | 5.2 | 14:23 |
| Sep | 82% | 58% | 3.6 | 12:31 |
| Oct | 87% | 73% | 2.0 | 10:40 |
| Nov | 94% | 81% | 1.0 | 9:01 |
| Dec | 97% | 81% | 0.7 | 8:12 |
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 Coquitlam is like
The warmest month is July, with an average high of 25 °C77 °F and a low of 16 °C60 °F. The coldest is December, when highs average 4 °C38 °F and lows −2 °C29 °F. Seasons are strongly marked: the warmest month is on average 19.2 °C34.6 °F warmer than the coldest.
It is very wet, receiving about 2,333 mm92 in of precipitation per year. The wettest three-month stretch is November–January, which brings 43% of the annual total. The wettest month is November (367 mm14 in), the driest is July (58 mm2.3 in).
Relative humidity ranges from 78% in July to 98% in January. The clearest skies (lowest average cloud amount, 50%) are typical of July. Average wind speed near the ground ranges from 1 km/h (1 mph) in November to 2 km/h (1 mph) in March. Daylight lasts from about 8.2 hours in December to 16.2 hours in June.
Best time to visit Coquitlam
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–August: average highs of 21 °C70 °F to 25 °C77 °F with 58 mm2.3 in to 98 mm3.9 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 4 °C39 °F and very wet (336 mm13 in).
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 Coquitlam
- Winter (December–February) — highs 438 to 5 °C41 °F, lows −229 to −1 °C30 °F, about 274 mm11 in of precipitation a month. Pack a warm coat, layers and closed shoes, shoes with good grip, as frost is common and a good rain jacket or umbrella and quick-drying shoes.
- Spring (March–May) — highs 744 to 18 °C65 °F, lows 235 to 10 °C49 °F, about 181 mm7.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2170 to 25 °C77 °F, lows 1355 to 16 °C60 °F, about 74 mm2.9 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Autumn (September–November) — highs 846 to 21 °C69 °F, lows 337 to 12 °C54 °F, about 249 mm9.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and a good rain jacket or umbrella and quick-drying shoes.
How Coquitlam compares
Compared with Burnaby, about 13 km to the west, Coquitlam has practically the same average temperature and receives 7% more precipitation (2,333 mm92 in vs 2,174 mm86 in). The difference is largest in January (1 °C1.8 °F cooler).
Of the 40 places in Canada covered by World Climates, Coquitlam is the 6th warmest by annual mean temperature and the 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: Freiburg (Germany, Cfb), Besançon (France, Cfb) and Zürich (Switzerland, Cfb).
Nearby places
- Burnaby 13 km · 10 °C50 °F · 2,174 mm86 in
- Surrey 20 km · 10 °C51 °F · 1,283 mm51 in
- Vancouver 25 km · 11 °C51 °F · 1,283 mm51 in
- Abbotsford 46 km · 10 °C50 °F · 1,403 mm55 in
- Chilliwack 62 km · 11 °C51 °F · 1,815 mm71 in
- Victoria 103 km · 11 °C51 °F · 991 mm39 in
- Everett 151 km · 11 °C52 °F · 1,253 mm49 in
- Seattle 190 km · 11 °C52 °F · 1,232 mm49 in
Frequently asked questions
What is the warmest month in Coquitlam?
July is the warmest month in Coquitlam, with an average high of 25 °C (77 °F) and an average low of 16 °C (60 °F).
What is the coldest month in Coquitlam?
December is the coldest month, with an average high of 4 °C (38 °F) and an average low of -2 °C (29 °F).
When does it rain the most in Coquitlam?
November is the wettest month with about 367 mm (14.5 in) of precipitation; July is the driest with about 58 mm (2.3 in).
What is the best time to visit Coquitlam?
Judging by long-term averages, the most comfortable months are June–August.
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.
The grid cell’s average elevation is 740 m, while Coquitlam lies at about 39 m. Temperatures on this page were therefore adjusted by +4.6 °C8.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.