Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Very good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 9.4h per day, so bright days are a strong part of the month. Rainfall averages 7mm, which is relatively low for holiday planning.
Monthly averages
Temp
27°C
Rain
7mm
Sun
9.4h
Weather score
80
Very good
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 7mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.4h per day, so bright days are a strong part of the month.
Map
Compare Atascadero, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
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.
September7mm average rain
September is one of Atascadero's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September9.4 hours average sun
September is brighter than Atascadero's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to September
This stretch has the strongest sunshine in the monthly averages.
September80 weather score
September scores above Atascadero'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.