Pacifica (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Pacifica.
Climate overview of Pacifica
Temperatures in Pacifica, California, United States of America, shift moderately through the seasons. The warmest month is September at 22°C (72°F), and the coolest is December at 14°C (57°F).
The city receives around 644 mm (25 in) of rainfall per year. It experiences a distinct dry season from May to October. December is the wettest month and July the driest. May is the sunniest month, averaging 10.8 hours of sunshine per day.
Pacifica Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pacifica - and find the best time to visit.
Monthly Temperature in Pacifica
The climate in Pacifica experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a pleasant 22°C (72°F) in September to a moderate 14°C (57°F) in December.
Nighttime temperatures range from 12°C (54°F) in September to 7°C (45°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Pacifica
Generally, Pacifica receives mid-range precipitation levels, with 644 mm (25 in) annually. The seasons in Pacifica bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 140 mm (5.5 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 2.5 mm (0.1 in) over 3 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Pacifica 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 Pacifica
In Pacifica, summer days are longer and more sunny, with daily sunshine hours peaking at 10.8 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
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Pacifica
The mean water temperature over the year ranges from 12°C (54°F) in January to 14°C (57°F) in June.
Water temperature over the year
Humidity in Pacifica by Month
The relative humidity is high throughout the year in Pacifica.
The city experiences its highest humidity in January, reaching 80%. In June, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Pacifica
The mean wind speed over the year ranges from 3 m/s (6 knots) in January, November and December to 7 m/s (14 knots) in June and July. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Pacifica
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August, September and October
- Warmest weather: August, September and October
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Wettest months: January, February, March, April, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to October
Frequently asked questions about the climate in Pacifica
What is the best time to visit Pacifica?
June, July, August, September and October typically offer the most optimal weather in Pacifica. In contrast, February, March and December tend to have less optimal conditions. Pacifica has a distinct dry season from May to October.
What temperatures can I expect in Pacifica?
Daytime highs range from 14°C (57°F) in December to 22°C (72°F) in September. Nighttime lows range from 7°C (45°F) to 12°C (54°F).
How much rain does Pacifica get?
Annual rainfall is around 644 mm (25 in). December is the wettest month with 140 mm (5.5 in), while July is the driest with 2.5 mm (0.1 in).
How sunny is Pacifica?
Pacifica receives around 3,058 hours of sunshine per year. May is the sunniest month with 324 hours, while December is the cloudiest with just 160 hours. Overall, Pacifica enjoys abundant sunshine.
Pacifica 3-Day Forecast
Pacifica on the map
Pacifica is highlighted - select any city to see its climate.
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