Delta Climate by Month
Delta, British Columbia, Canada
Mild summers and cool winters, with rain spread through the year.
The climate in Delta is one of mild summers and cool winters, with rain spread through the year. Afternoon highs range from 44°F (7°C) in January to 74°F (23°C) in August, and January nights average 35°F (2°C). About 48 in (1208 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 79% relative humidity.
- Warmest month
- 74°F(23°C)
- Average high, August
- Coldest nights
- 35°F(2°C)
- Average low, January
- Rain per year
- 48 in(1208 mm)
- No clear rainy season
- Humidity
- 79%
- Sunniest: July
Best and worst months in Delta
Best for weatherThe most comfortable weather comes in July and August, with highs around 73°F (23°C) and about 1.4 in (36 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 44°F (7°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Delta weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 44°F(7°C) | 35°F(2°C) | 7.4 in(188 mm) | 97% | 0.8 |
| FebFebruary | 47°F(8°C) | 36°F(2°C) | 3.7 in(95 mm) | 79% | 1.8 |
| MarMarch | 51°F(11°C) | 38°F(4°C) | 4.6 in(116 mm) | 79% | 2.7 |
| AprApril | 56°F(14°C) | 43°F(6°C) | 3.4 in(87 mm) | 75% | 4.2 |
| MayMay | 64°F(18°C) | 48°F(9°C) | 2.4 in(62 mm) | 72% | 5.3 |
| JunJune | 68°F(20°C) | 53°F(12°C) | 2.1 in(54 mm) | 72% | 5.6 |
| JulJulyBest | 73°F(23°C) | 56°F(14°C) | 1.2 in(30 mm) | 72% | 6.0 |
| AugAugustBest | 74°F(23°C) | 57°F(14°C) | 1.6 in(41 mm) | 71% | 5.1 |
| SepSeptember | 68°F(20°C) | 52°F(11°C) | 2.1 in(54 mm) | 74% | 3.6 |
| OctOctober | 58°F(14°C) | 45°F(7°C) | 5.0 in(126 mm) | 85% | 1.9 |
| NovNovember | 49°F(10°C) | 39°F(4°C) | 7.7 in(196 mm) | 91% | 1.0 |
| DecDecember | 44°F(7°C) | 35°F(2°C) | 6.3 in(159 mm) | 84% | 0.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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