Santee Climate by Month
Santee, California, United States
Hot summers and mild winters, with little rain, mostly from December to March.
Santee has hot summers and mild winters, with little rain, mostly from December to March. August is the warmest month, with highs around 89°F (32°C); January is the coolest at 70°F (21°C), and nights dip to 44°F (7°C). It gets only 11 in (276 mm) of rain a year. May to September are almost completely dry.
- Warmest month
- 89°F(32°C)
- Average high, August
- Coldest nights
- 44°F(7°C)
- Average low, December
- Rain per year
- 11 in(276 mm)
- Wettest: February
- Humidity
- 54%
- Sunniest: June
Best and worst months in Santee
Best for weatherThe most comfortable weather comes in April, May and November, with highs around 77°F (25°C) and about 0.8 in (20 mm) of rain a month.
Least pleasantAugust and September are the least pleasant; August is the hottest, with highs of 89°F (32°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 April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Santee weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 70°F(21°C) | 44°F(7°C) | 2.0 in(50 mm) | 51% | 3.1 |
| FebFebruary | 70°F(21°C) | 46°F(8°C) | 2.3 in(59 mm) | 55% | 3.5 |
| MarMarch | 72°F(22°C) | 48°F(9°C) | 1.7 in(42 mm) | 57% | 5.0 |
| AprAprilBest | 76°F(24°C) | 50°F(10°C) | 1.0 in(25 mm) | 56% | 6.0 |
| MayMayBest | 78°F(25°C) | 55°F(13°C) | 0.3 in(8 mm) | 59% | 6.4 |
| JunJune | 82°F(28°C) | 58°F(15°C) | 0.1 in(2 mm) | 56% | 6.9 |
| JulJuly | 87°F(31°C) | 61°F(16°C) | 0.0 in(1 mm) | 59% | 6.7 |
| AugAugust | 89°F(32°C) | 63°F(17°C) | 0.1 in(2 mm) | 55% | 6.5 |
| SepSeptember | 88°F(31°C) | 62°F(17°C) | 0.2 in(4 mm) | 54% | 5.5 |
| OctOctober | 84°F(29°C) | 56°F(14°C) | 0.4 in(10 mm) | 48% | 4.3 |
| NovNovemberBest | 77°F(25°C) | 49°F(9°C) | 1.1 in(27 mm) | 46% | 3.4 |
| DecDecember | 70°F(21°C) | 44°F(7°C) | 1.8 in(46 mm) | 51% | 2.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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