Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Ukiah, California, United States in September
Weather score61Good
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 9h per day, so bright days are a strong part of the month. Rainfall averages 16mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
27°C
Rain
16mm
Sun
9h
Sea
13°C
Weather score
61
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 16mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Ukiah, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September27°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September16mm average rain
September is one of Ukiah'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
September9 hours average sun
September is brighter than Ukiah'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
September13°C average sea
September is one of Ukiah's warmest sea months, when swimming comfort is usually strongest.
Warmest seaAugust to December
Sea temperatures are usually near 12°C in this stretch, so swimming comfort is at its strongest.
Weather score
September61 weather score
September scores above Ukiah's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
