Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
September verdict
Excellent for holiday weather
Average highs sit around 28°C, giving warm days by monthly-average standards. Sunshine averages 8.6h per day, so bright days are a strong part of the month. Rainfall averages 6mm, which is relatively low for holiday planning.
Monthly averages
Temp
28°C
Rain
6mm
Sun
8.6h
Weather score
86
Excellent
Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 6mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Map
Compare Chula Vista, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September28°C average high
September is one of Chula Vista's warmest months, with daytime heat above the yearly average.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
September6mm average rain
September is one of Chula Vista'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.
September8.6 hours average sun
September sits close to Chula Vista's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril and July to August
This stretch has the strongest sunshine in the monthly averages.
September86 weather score
September scores above Chula Vista's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.