Occidental (CA) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Occidental.

Climate overview of Occidental

The climate in Occidental, California, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to 14°C (57°F) in December.

The city has a wet climate, receiving around 1067 mm (42 in) of rainfall per year. Despite the high annual total, it has a distinct dry season from May to September. December is the wettest month. Sunshine peaks in May, when the city sees around 10.3 hours of sunshine per day.

Occidental Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Occidental — and find the best time to visit.

Monthly Temperature in Occidental

In Occidental, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C (81°F) in July to a moderate 14°C (57°F) in December.

Nighttime temperatures range from 11°C (52°F) in July to 4°C (39°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Occidental

Occidental experiences significant rainfall throughout the year, averaging 1067 mm (42 in) of precipitation annually. The seasons in Occidental bring significant changes in precipitation. The wettest month, December, receives heavy rainfall, with an average of 230 mm (9.1 in) of precipitation. This rainfall is distributed across 14 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 1.1 mm (0.04 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Occidental Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Occidental

In Occidental, summer days are longer and more sunny, with daily sunshine hours peaking at 10.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.3 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Healdsburg, the United States of America (23 KM, 14 Miles).

Daily hours of sunshine

Data from: Healdsburg, the United States of America (23 KM, 14 Miles).

Best Time to Visit Occidental

The best time to visit Occidental is during April, May, June, August and October, when the weather provides comfortable temperatures between 20°C (69°F) and 27°C (80°F). With rainfall of 2 mm (0.1 in) to 81 mm (3.2 in), you can expect pleasant weather during your visit in these months.

Be prepared for heavier rainfall during January, February and December, the wettest period of the year.

Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

Frequently asked questions about the climate in Occidental

What is the best time to visit Occidental?

April, May, June, July, August, September and October typically offer the most optimal weather in Occidental. In contrast, February and December tend to have less optimal conditions. Occidental has a distinct dry season from May to September.

What temperatures can I expect in Occidental?

Daytime highs range from 14°C (57°F) in December to 27°C (81°F) in July. Nighttime lows range from 4°C (39°F) to 11°C (52°F). Temperatures vary considerably through the year.

How much rain does Occidental get?

Annual rainfall is around 1067 mm (42 in). December is the wettest month with 230 mm (9.1 in), while July is the driest with 1.1 mm (0.04 in).

How sunny is Occidental?

Occidental receives around 3,042 hours of sunshine per year. May is the sunniest month with 310 hours, while December is the cloudiest with just 160 hours. Overall, Occidental enjoys abundant sunshine.

Occidental 3-Day Forecast

Occidental (CA) 3-Day Forecast

Occidental on the map

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