Oceanside, California Climate by Month
Oceanside, California, United States
Mild all year, with little rain, mostly from November to March.
Oceanside is mild all year, with little rain, mostly from November to March. August is the warmest month, with highs around 76°F (25°C); February is the coolest at 65°F (19°C), and nights dip to 46°F (8°C). It gets only 10 in (254 mm) of rain a year. May to September are almost completely dry.
- Warmest month
- 76°F(25°C)
- Average high, August
- Coldest nights
- 46°F(8°C)
- Average low, January
- Rain per year
- 10 in(254 mm)
- Wettest: February
- Humidity
- 65%
- Sunniest: June
Best and worst months in Oceanside
Best for weatherAugust to October are the best time for weather in Oceanside: highs near 76°F (24°C) and almost no rain.
Least pleasantJanuary and February are the least pleasant; February is the coldest, with highs of only 65°F (19°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 October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Oceanside weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 66°F(19°C) | 46°F(8°C) | 1.7 in(43 mm) | 59% | 2.9 |
| FebFebruary | 65°F(19°C) | 47°F(8°C) | 2.0 in(51 mm) | 65% | 3.5 |
| MarMarch | 66°F(19°C) | 49°F(9°C) | 1.4 in(35 mm) | 68% | 4.8 |
| AprApril | 68°F(20°C) | 51°F(10°C) | 1.0 in(25 mm) | 63% | 5.9 |
| MayMay | 69°F(21°C) | 55°F(13°C) | 0.3 in(7 mm) | 68% | 6.1 |
| JunJune | 71°F(21°C) | 58°F(15°C) | 0.1 in(2 mm) | 73% | 6.6 |
| JulJuly | 74°F(23°C) | 62°F(17°C) | 0.1 in(2 mm) | 73% | 6.5 |
| AugAugustBest | 76°F(25°C) | 64°F(18°C) | 0.1 in(2 mm) | 72% | 6.4 |
| SepSeptemberBest | 76°F(25°C) | 62°F(17°C) | 0.2 in(5 mm) | 69% | 5.4 |
| OctOctoberBest | 75°F(24°C) | 58°F(14°C) | 0.4 in(10 mm) | 59% | 4.1 |
| NovNovember | 71°F(22°C) | 51°F(10°C) | 1.0 in(26 mm) | 55% | 3.3 |
| DecDecember | 66°F(19°C) | 46°F(8°C) | 1.8 in(46 mm) | 58% | 2.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
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