Is Santa Ana hot in September?
Days are typically warm at 29.4°C, while nights average 17.4°C.
United States · 1991–2020 normal
Santa Ana in
September.
Typical September weather in Santa Ana: 29.4°C by day, 17.4°C at night, 3 mm of rain over 0.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high29.4°C
Typical low17.4°C
Rain3 mm
Wet days0.4
In the year-round weather comparison, September scores 78 out of 100 (May leads the year at 98). Daylight is calculated as 12 h 20 from latitude 33.75°. Open-water sea temperature is 20.5°C (13 km from the place centre).
September at a glance
What is Santa Ana like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 3 mm across about 0 wet days.
How much daylight is there?
There are about 12 h 20 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 8 of 12 in our weather comparison; May ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5392900
- NOAA station
- USC00047888 · SANTA ANA FIRE STN
- Station distance
- 0.2 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Santa Ana is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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