Martinez (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Martinez.
Climate overview of Martinez
Martinez, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 14°C (57°F) in December.
Rainfall is modest, totalling around 445 mm (18 in) annually. The city experiences a distinct dry season from May to October, with very warm summers and mild winters. December tends to be the wettest month. The sunniest month is May, with 10.8 hours of sunshine per day on average.
Martinez Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Martinez - and find the best time to visit.
Monthly Temperature in Martinez
Depending on the time of the year, temperatures range from very warm to moderate in Martinez. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a moderate 14°C (57°F) during cooler months like December.
At night, you can expect temperatures ranging from 13°C (55°F) in July to around 4°C (39°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Martinez
With annual rainfall averaging 445 mm (18 in), Martinez maintains relatively low precipitation levels throughout the seasons. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 93 mm (3.7 in) of precipitation, recorded across 11 rainy days. In contrast, the driest month July brings less rainfall, with 0.1 mm (0 in) over 0 rainy days. For more details, please visit our Martinez 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 Martinez
Seasonal changes in sunshine hours are quite dramatic in Martinez. While May receives considerable daily sunshine with up to 10.8 hours, December marks the darkest time of the year, where sunshine is scarce 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
Humidity in Martinez by Month
The relative humidity is high throughout the year in Martinez.
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
Best Time to Visit Martinez
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, September and October
- Warmest weather: July and August
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from May to October, with very warm summers and mild winters
Frequently asked questions about the climate in Martinez
What is the best time to visit Martinez?
April, May, June, September and October typically offer the most optimal weather in Martinez. In contrast, January, February and December tend to have less optimal conditions. Martinez has a distinct dry season from May to October, with very warm summers and mild winters.
What temperatures can I expect in Martinez?
Daytime highs range from 14°C (57°F) in December to 31°C (88°F) in July. Nighttime lows range from 4°C (39°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Martinez get?
Annual rainfall is around 445 mm (18 in). December is the wettest month with 93 mm (3.7 in), while July is the driest with 0.1 mm (0 in).
How sunny is Martinez?
Martinez 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, Martinez enjoys abundant sunshine.
Martinez 3-Day Forecast
Martinez on the map
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