San Leandro Climate by Month
San Leandro, California, United States
Warm summers and mild winters, with most rain from December to March.
The climate in San Leandro is one of warm summers and mild winters, with most rain from December to March. Expect highs of 79°F (26°C) in September and 58°F (15°C) in January, with the coldest nights (December) near 43°F (6°C). It gets 19 in (485 mm) of rain a year, 71% of it from December to March. June to September are almost completely dry.
- Warmest month
- 79°F(26°C)
- Average high, September
- Coldest nights
- 43°F(6°C)
- Average low, December
- Rain per year
- 19 in(485 mm)
- Wettest: January
- Humidity
- 67%
- Sunniest: June
Best and worst months in San Leandro
Best for weatherJune, July and October are the best time for weather in San Leandro: highs near 76°F (25°C) and almost no rain.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 58°F (15°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)
San Leandro weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 58°F(15°C) | 43°F(6°C) | 3.9 in(98 mm) | 79% | 1.9 |
| FebFebruary | 62°F(17°C) | 45°F(7°C) | 3.6 in(92 mm) | 71% | 2.6 |
| MarMarch | 65°F(18°C) | 47°F(8°C) | 2.8 in(70 mm) | 66% | 4.2 |
| AprApril | 69°F(20°C) | 48°F(9°C) | 1.4 in(36 mm) | 66% | 5.4 |
| MayMay | 72°F(22°C) | 51°F(11°C) | 0.6 in(15 mm) | 64% | 6.3 |
| JunJuneBest | 76°F(25°C) | 55°F(13°C) | 0.2 in(4 mm) | 61% | 7.3 |
| JulJulyBest | 77°F(25°C) | 56°F(13°C) | 0.0 in(1 mm) | 63% | 7.2 |
| AugAugust | 78°F(26°C) | 56°F(13°C) | 0.0 in(1 mm) | 66% | 6.5 |
| SepSeptember | 79°F(26°C) | 56°F(13°C) | 0.1 in(2 mm) | 61% | 5.4 |
| OctOctoberBest | 75°F(24°C) | 52°F(11°C) | 1.1 in(28 mm) | 60% | 3.8 |
| NovNovember | 66°F(19°C) | 47°F(8°C) | 2.0 in(52 mm) | 71% | 2.5 |
| DecDecember | 59°F(15°C) | 43°F(6°C) | 3.4 in(86 mm) | 70% | 1.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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