Hot
Average highs reach 34°C, so days can feel very hot.
Weather Guide
Vacaville, California, United States Average Monthly Weather
Weather score64Good annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 24°C, sunshine averages 9.2h per day, and rainfall totals about 599mm.
Annual weather
Annual averages
Temp
24°C
Rain
599mm
Annual total
Sun
9.2h
Weather score
64
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 1mm, which is relatively low for holiday planning.
Bright
Sunshine averages 12h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Vacaville, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August34°C average high
August is one of Vacaville's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August1mm average rain
August is one of Vacaville'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
August12 hours average sun
August is brighter than Vacaville's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August98 weather score
August is one of Vacaville's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
