Alpine (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Alpine.
Climate overview of Alpine
Alpine, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 33°C (91°F) in August, while winters cool to 17°C (63°F) in December.
With around 366 mm (14 in) of annual rainfall, Alpine has a fairly dry climate. However, it has a distinct dry season from April to November, with very warm summers and mild winters. The wettest month is December, while June sees the least rain. The sunniest month is July, with 10.1 hours of sunshine per day on average.
Alpine Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alpine - and find the best time to visit.
Monthly Temperature in Alpine
Depending on the time of the year, temperatures range from very warm to moderate in Alpine. Average daytime temperatures reach a very warm 33°C (91°F) in August. In December, the coolest month of the year, temperatures drop to a moderate 17°C (63°F).
At night, temperatures range from around 16°C (61°F) in August to 5°C (41°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Alpine
Alpine has a relatively dry climate with low precipitation, averaging 366 mm (14 in) of rainfall annually. Alpine can be quite wet during December, receiving approximately 93 mm (3.7 in) of precipitation over 10 rainy days.
In contrast, during the driest month (June), you will experience much drier conditions, with 0.5 mm (0.02 in) of precipitation spread across 0 rainy days. For more details, please visit our Alpine Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Alpine
Alpine experiences moderate variation in sunshine hours across the seasons. With 10.1 hours daily sunshine in July, it dips to 7.7 hours in February, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Alpine by Month
The relative humidity is high throughout the year in Alpine.
The city experiences its highest humidity in July, reaching 75%. In January, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Alpine
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May, June, October and November
- Warmest weather: July, August and September
- Most sunshine: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from April to November, with very warm summers and mild winters
Frequently asked questions about the climate in Alpine
What is the best time to visit Alpine?
March, April, May, June, October and November typically offer the most optimal weather in Alpine. In contrast, August and December tend to have less optimal conditions. Alpine has a distinct dry season from April to November, with very warm summers and mild winters.
What temperatures can I expect in Alpine?
Daytime highs range from 17°C (63°F) in December to 33°C (91°F) in August. Nighttime lows range from 5°C (41°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Alpine get?
Annual rainfall is around 366 mm (14 in). December is the wettest month with 93 mm (3.7 in), while June is the driest with 0.5 mm (0.02 in).
How sunny is Alpine?
Alpine receives around 3,069 hours of sunshine per year. July is the sunniest month with 304 hours, while February is the cloudiest with just 230 hours. Overall, Alpine enjoys abundant sunshine.
Alpine 3-Day Forecast
Alpine on the map
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