Redwood City (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Redwood City.
Climate overview of Redwood City
The climate in Redwood City, California, United States of America, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in July to 15°C (59°F) in December.
With around 397 mm (16 in) of annual rainfall, Redwood City has a fairly dry climate. However, it has a distinct dry season from April to November, with warm summers and mild winters. The wettest month is December, while July sees the least rain. The most sunshine falls in May, with an average of 10.8 hours of daily sunshine.
Redwood City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Redwood City - and find the best time to visit.
Monthly Temperature in Redwood City
In Redwood City, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 26°C (79°F) in July. In December, the coolest month of the year, temperatures drop to a moderate 15°C (59°F).
At night, temperatures range from around 14°C (57°F) in July to 5°C (41°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Redwood City
Redwood City typically sees modest rainfall throughout the year, with an average annual precipitation of 397 mm (16 in). Redwood City can be quite wet during December, receiving approximately 96 mm (3.8 in) of precipitation over 12 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 0 mm (0 in) of precipitation spread across 0 rainy days. For more details, please visit our Redwood City 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 Redwood City
Redwood City can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.3 hours of sunlight per 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 Redwood City
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 Redwood City by Month
The relative humidity is high throughout the year in Redwood City.
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 Redwood City
The average wind speed over the year ranges from 3 m/s (6 knots) to 7 m/s (14 knots). It is lower in January, November and December and higher in June and July. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Redwood City
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June, July, August, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: A distinct dry season from April to November, with warm summers and mild winters
Frequently asked questions about the climate in Redwood City
What is the best time to visit Redwood City?
April, May, June, July, August, September and October typically offer the most optimal weather in Redwood City. In contrast, January, February and December tend to have less optimal conditions. Redwood City has a distinct dry season from April to November, with warm summers and mild winters.
What temperatures can I expect in Redwood City?
Daytime highs range from 15°C (59°F) in December to 26°C (79°F) in July. Nighttime lows range from 5°C (41°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Redwood City get?
Annual rainfall is around 397 mm (16 in). December is the wettest month with 96 mm (3.8 in), while July is the driest with 0 mm (0 in).
How sunny is Redwood City?
Redwood City 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, Redwood City enjoys abundant sunshine.
Redwood City 3-Day Forecast
Redwood City on the map
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