Chula Vista Climate by Month
Chula Vista, California, United States
Mild all year, with little rain, mostly from December to March.
The climate in Chula Vista is mild all year, with little rain, mostly from December to March. Afternoon highs range from 68°F (20°C) in February to 80°F (27°C) in August, and December nights average 47°F (8°C). It gets only 8.7 in (222 mm) of rain a year. May to September are almost completely dry.
- Warmest month
- 80°F(27°C)
- Average high, August
- Coldest nights
- 47°F(8°C)
- Average low, December
- Rain per year
- 8.7 in(222 mm)
- Wettest: February
- Humidity
- 62%
- Sunniest: June
Best and worst months in Chula Vista
Best for weatherThe most comfortable weather comes in June, July and October, with highs around 76°F (25°C) and almost no rain.
Least pleasantJanuary and February are the least pleasant; February is the coldest, with highs of only 68°F (20°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 June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Chula Vista weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 68°F(20°C) | 48°F(9°C) | 1.6 in(41 mm) | 55% | 3.1 |
| FebFebruary | 68°F(20°C) | 49°F(10°C) | 2.0 in(50 mm) | 59% | 3.6 |
| MarMarch | 69°F(21°C) | 51°F(11°C) | 1.4 in(35 mm) | 62% | 5.0 |
| AprApril | 71°F(22°C) | 54°F(12°C) | 0.6 in(16 mm) | 62% | 6.0 |
| MayMay | 72°F(22°C) | 58°F(15°C) | 0.2 in(5 mm) | 66% | 6.3 |
| JunJuneBest | 74°F(23°C) | 61°F(16°C) | 0.1 in(2 mm) | 65% | 6.7 |
| JulJulyBest | 78°F(25°C) | 64°F(18°C) | 0.1 in(2 mm) | 70% | 6.6 |
| AugAugust | 80°F(27°C) | 66°F(19°C) | 0.0 in(1 mm) | 69% | 6.5 |
| SepSeptember | 80°F(27°C) | 64°F(18°C) | 0.1 in(3 mm) | 64% | 5.5 |
| OctOctoberBest | 77°F(25°C) | 59°F(15°C) | 0.4 in(10 mm) | 60% | 4.3 |
| NovNovember | 73°F(23°C) | 52°F(11°C) | 0.8 in(21 mm) | 57% | 3.4 |
| DecDecember | 68°F(20°C) | 47°F(8°C) | 1.4 in(36 mm) | 55% | 2.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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