Arcadia (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Arcadia.
Climate overview of Arcadia
Arcadia, 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 20°C (68°F) in December.
The city has a relatively dry climate, receiving around 371 mm (15 in) of rainfall per year. It does experience a distinct dry season from April to November, with very warm summers and pleasant winters. December is the wettest month and August the driest. The most sunshine falls in July, with an average of 12.1 hours of daily sunshine.
Arcadia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Arcadia - and find the best time to visit.
Monthly Temperature in Arcadia
Depending on the time of the year, temperatures range from very warm to pleasant in Arcadia. On average, daytime temperatures range from a very warm 33°C (91°F) in August to a pleasant 20°C (68°F) in December.
Nighttime temperatures range from 18°C (64°F) in August to 8°C (46°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Arcadia
Arcadia maintains relatively dry conditions year-round, recording average annual precipitation of 371 mm (15 in). The seasons in Arcadia bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 89 mm (3.5 in) of precipitation. This rainfall is distributed across 9 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 0.3 mm (0.01 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Arcadia 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 Arcadia
In Arcadia, summer days are longer and more sunny, with daily sunshine hours peaking at 12.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 7.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Arcadia by Month
The relative humidity is high throughout the year in Arcadia.
The city experiences its highest humidity in May, reaching 73%. In November, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Arcadia
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May, June, October, November and December
- 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 pleasant winters
Frequently asked questions about the climate in Arcadia
What is the best time to visit Arcadia?
January, February, March, April, May, June, October, November and December typically offer the most optimal weather in Arcadia. In contrast, July, August and September tend to have less optimal conditions. Arcadia has a distinct dry season from April to November, with very warm summers and pleasant winters.
What temperatures can I expect in Arcadia?
Daytime highs range from 20°C (68°F) in December to 33°C (91°F) in August. Nighttime lows range from 8°C (46°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Arcadia get?
Annual rainfall is around 371 mm (15 in). December is the wettest month with 89 mm (3.5 in), while August is the driest with 0.3 mm (0.01 in).
How sunny is Arcadia?
Arcadia receives around 3,257 hours of sunshine per year. July is the sunniest month with 364 hours, while November is the cloudiest with just 217 hours. Overall, Arcadia enjoys abundant sunshine.
Arcadia 3-Day Forecast
Arcadia (CA) 3-Day Forecast
Arcadia on the map
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