Lake Forest, California Climate by Month
Lake Forest, California, United States
Warm summers and mild winters, with little rain, mostly from December to March.
The climate in Lake Forest is one of warm summers and mild winters, with little rain, mostly from December to March. Expect highs of 86°F (30°C) in August and 68°F (20°C) in December, with the coldest nights (December) near 45°F (7°C). It gets only 12 in (309 mm) of rain a year. May to September are almost completely dry.
- Warmest month
- 86°F(30°C)
- Average high, August
- Coldest nights
- 45°F(7°C)
- Average low, December
- Rain per year
- 12 in(309 mm)
- Wettest: February
- Humidity
- 55%
- Sunniest: June
Best and worst months in Lake Forest
Best for weatherThe most comfortable weather comes in May and November, with highs around 75°F (24°C) and about 0.6 in (16 mm) of rain a month.
Least pleasantFebruary and December 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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Lake Forest weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 68°F(20°C) | 45°F(7°C) | 2.4 in(60 mm) | 51% | 2.8 |
| FebFebruary | 68°F(20°C) | 46°F(8°C) | 2.8 in(71 mm) | 57% | 3.3 |
| MarMarch | 70°F(21°C) | 47°F(9°C) | 1.9 in(49 mm) | 59% | 4.8 |
| AprApril | 74°F(23°C) | 50°F(10°C) | 0.9 in(24 mm) | 58% | 5.9 |
| MayMayBest | 75°F(24°C) | 55°F(13°C) | 0.2 in(6 mm) | 62% | 6.3 |
| JunJune | 79°F(26°C) | 58°F(15°C) | 0.1 in(2 mm) | 59% | 6.7 |
| JulJuly | 84°F(29°C) | 62°F(17°C) | 0.1 in(2 mm) | 58% | 6.7 |
| AugAugust | 86°F(30°C) | 63°F(17°C) | 0.0 in(1 mm) | 55% | 6.5 |
| SepSeptember | 85°F(29°C) | 61°F(16°C) | 0.2 in(5 mm) | 54% | 5.5 |
| OctOctober | 80°F(27°C) | 56°F(13°C) | 0.4 in(10 mm) | 51% | 4.1 |
| NovNovemberBest | 74°F(24°C) | 49°F(10°C) | 1.0 in(25 mm) | 48% | 3.3 |
| DecDecember | 68°F(20°C) | 45°F(7°C) | 2.1 in(54 mm) | 52% | 2.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate outside the United States
- 🇲🇽TijuanaBaja California, Mexico · Pop. 1.9M97%matchDrier wintersMore humidLake Forest vs Tijuana →
- 🇲🇽EnsenadaBaja California, Mexico · Pop. 444k78%matchMore humidDrier wintersLake Forest vs Ensenada →
- 🇲🇦Oulad TeïmaSouss-Massa, Morocco · Pop. 98k75%matchDrier wintersHotter summersLake Forest vs Oulad Teïma →
- 🇲🇦YoussoufiaMarrakesh-Safi, Morocco · Pop. 74k74%matchHotter summersDrier wintersLake Forest vs Youssoufia →
- 🇲🇦SettatCasablanca-Settat, Morocco · Pop. 155k72%matchHotter summersColder wintersLake Forest vs Settat →
- 🇺🇸EscondidoCalifornia, United States · Pop. 151k99%matchClose on every measureLake Forest vs Escondido →
- 🇲🇽TijuanaBaja California, Mexico · Pop. 1.9M97%matchDrier wintersMore humidLake Forest vs Tijuana →
- 🇺🇸GlendaleCalifornia, United States · Pop. 201k97%matchLess humidWetter wintersLake Forest vs Glendale →
- 🇺🇸Thousand OaksCalifornia, United States · Pop. 129k96%matchWetter wintersLake Forest vs Thousand Oaks →
- 🇺🇸Santa BarbaraCalifornia, United States · Pop. 92k84%matchCooler summersMore humidLake Forest vs Santa Barbara →