Click on a day for an hourly weather forecast
The temperatures in Coquitlam in August are usually low and can range between 12°C and 20°C.
You can expect about 3 to 8 days of rain in Coquitlam during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Coquitlam in August 2025.
If you’re planning to visit Coquitlam in the near future, we highly recommend that you review the 14 day weather forecast for Coquitlam before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -1° | 15 | 12 | 4 | 474 mm | Awful | Coquitlam in January |
| February | 4° / -1° | 13 | 9 | 6 | 325 mm | Awful | Coquitlam in February |
| March | 6° / 1° | 17 | 11 | 3 | 428 mm | Awful | Coquitlam in March |
| April | 9° / 3° | 12 | 17 | 1 | 265 mm | Bad | Coquitlam in April |
| May | 13° / 7° | 8 | 23 | 0 | 164 mm | Bad | Coquitlam in May |
| June | 16° / 10° | 7 | 23 | 0 | 128 mm | Ok | Coquitlam in June |
| July | 20° / 12° | 4 | 27 | 0 | 66 mm | Good | Coquitlam in July |
| August | 20° / 12° | 3 | 28 | 0 | 89 mm | Good | Coquitlam in August |
| September | 17° / 9° | 8 | 22 | 0 | 215 mm | Ok | Coquitlam in September |
| October | 11° / 6° | 12 | 19 | 0 | 388 mm | Bad | Coquitlam in October |
| November | 6° / 2° | 16 | 13 | 1 | 563 mm | Awful | Coquitlam in November |
| December | 3° / -1° | 16 | 11 | 5 | 421 mm | Awful | Coquitlam in December |