Hot
Average highs reach 34°C, so days can feel very hot.
August verdict
Rancho Cucamonga, California, United States in August
Weather score86Excellent
Excellent for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 11h per day, so bright days are a strong part of the month. Rainfall averages 4mm, which is relatively low for holiday planning.
August weather
Monthly averages
Temp
34°C
Rain
4mm
Sun
11h
Sea
21°C
Weather score
86
Excellent
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 4mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Rancho Cucamonga, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August34°C average high
August is one of Rancho Cucamonga's warmest months, with daytime heat above the yearly average.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
August4mm average rain
August is one of Rancho Cucamonga'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
August11 hours average sun
August is brighter than Rancho Cucamonga's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August21°C average sea
August is one of Rancho Cucamonga's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
Weather score
August86 weather score
August is one of Rancho Cucamonga'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.
Hotels in Rancho Cucamonga, California, United States
Marriott
Aloft Ontario-Rancho CucamongaRancho Cucamonga, California, USA
Courtyard Ontario Rancho CucamongaRancho Cucamonga, California, USA
Fairfield Inn & Suites Ontario Rancho CucamongaRancho Cucamonga, California, USA
Four Points by Sheraton Ontario-Rancho CucamongaRancho Cucamonga, California, USA
City Express By Marriott Rancho CucamongaRancho Cucamonga, California, USA
Residence Inn Ontario Rancho CucamongaRancho Cucamonga, California, USA