Mild
Average highs are around 26°C, so days are mild rather than hot.
Weather Guide
Fairfield, California, United States Average Monthly Weather
Weather score49Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 20°C, sunshine averages 8.7h per day, and rainfall totals about 675mm. Sea temperatures average 13°C across the year.
Annual weather
Annual averages
Temp
20°C
Rain
675mm
Annual total
Sun
8.7h
Sea
13°C
Weather score
49
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 3mm, which is relatively low for holiday planning.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Fairfield, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August26°C average high
August is one of Fairfield's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
Rain
August3mm average rain
August is one of Fairfield's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August10 hours average sun
August is brighter than Fairfield's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August15°C average sea
August is one of Fairfield's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
August70 weather score
August is one of Fairfield's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to September
These months have the strongest weather score in the monthly averages.
