Anaheim weather in September: Anaheim, California: normal highs, lows, rain and records for September
Anaheim in September has a normal high of 88°F and a normal low of 64°F, a daily mean of 76°F, falling from 89°F on the 1st to 86°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.15 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 18°C, 4 mm of precipitation in September.
- NOAA stationAnaheim
- Station IDUSC00040192
- Location33.86°N 117.84°W
- Elevation235 ft (72 m)
- From the center5 miles
- Population344,561
- Jan 71° 49°
- Feb 71° 49°
- Mar 74° 51°
- Apr 77° 54°
- May 78° 58°
- Jun 82° 62°
- Jul 87° 66°
- Aug 89° 66°
- Sep 88° 64°
- Oct 83° 59°
- Nov 77° 53°
- Dec 71° 48°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Anaheim in September?
The normal high is 88°F and the normal low 64°F, for a daily mean of 75.9°F. September is 1.5°F cooler than August and 4.6°F warmer than October. September is the 3rd warmest month of the year in Anaheim and the 9th wettest. Across the month the normal high falls 3°F, from 89°F on September 1 to 86°F on September 30. From one year to the next September's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 74°F and 78°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 66°F | 2% | 1% |
| September 8 | 89°F | 65°F | 2% | 1% |
| September 15 | 88°F | 64°F | 3% | 1% |
| September 22 | 87°F | 63°F | 3% | 1% |
| September 30 | 86°F | 62°F | 4% | 2% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 89°F | 66°F | 2% | 1% | 12 h 50 min |
| September 2 | 89°F | 65°F | 2% | 1% | 12 h 50 min |
| September 3 | 89°F | 65°F | 2% | 1% | 12 h 50 min |
| September 4 | 89°F | 65°F | 2% | 1% | 12 h 50 min |
| September 5 | 89°F | 65°F | 2% | 1% | 12 h 50 min |
| September 6 | 89°F | 65°F | 2% | 1% | 12 h 40 min |
| September 7 | 89°F | 65°F | 2% | 1% | 12 h 40 min |
| September 8 | 89°F | 65°F | 2% | 1% | 12 h 40 min |
| September 9 | 89°F | 65°F | 2% | 1% | 12 h 40 min |
| September 10 | 89°F | 65°F | 2% | 1% | 12 h 40 min |
| September 11 | 89°F | 65°F | 2% | 1% | 12 h 30 min |
| September 12 | 89°F | 65°F | 2% | 1% | 12 h 30 min |
| September 13 | 88°F | 65°F | 2% | 1% | 12 h 30 min |
| September 14 | 88°F | 64°F | 2% | 1% | 12 h 30 min |
| September 15 | 88°F | 64°F | 3% | 1% | 12 h 30 min |
| September 16 | 88°F | 64°F | 3% | 1% | 12 h 20 min |
| September 17 | 88°F | 64°F | 3% | 1% | 12 h 20 min |
| September 18 | 88°F | 64°F | 3% | 1% | 12 h 20 min |
| September 19 | 87°F | 64°F | 3% | 1% | 12 h 20 min |
| September 20 | 87°F | 64°F | 3% | 1% | 12 h 20 min |
| September 21 | 87°F | 64°F | 3% | 1% | 12 h 10 min |
| September 22 | 87°F | 63°F | 3% | 1% | 12 h 10 min |
| September 23 | 87°F | 63°F | 3% | 2% | 12 h 10 min |
| September 24 | 87°F | 63°F | 3% | 2% | 12 h 10 min |
| September 25 | 86°F | 63°F | 3% | 2% | 12 h 10 min |
| September 26 | 86°F | 63°F | 3% | 2% | 12 h |
| September 27 | 86°F | 63°F | 4% | 2% | 12 h |
| September 28 | 86°F | 63°F | 4% | 2% | 12 h |
| September 29 | 86°F | 62°F | 4% | 2% | 12 h |
| September 30 | 86°F | 62°F | 4% | 2% | 11 h 50 min |
- Normal high
- 88°FSeptember average
- Normal low
- 64°FSeptember average
- Precipitation
- 0.15 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 11
- Daylight
- 12 h 50 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 26
- Sunshine
- 91%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00040192; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Anaheim in September?
On a given September day the chance of 0.01 inch or more is 3% on average, highest around September 30 (4%). In all, 0.15 in falls on 1 days of a normal September.
In a normal September in Anaheim, 11 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00040192.
What are the records for September in Anaheim?
The warmest September temperature on this station's record (since 1989) is 112°F, on September 6, 2024; the coldest is 51°F, on September 13, 1991. The wettest September brought 1.77 in (2015).
The September mean against the 1991-2020 normal of 75.9°F: 2021 76.6°F (+0.7), 2022 82.0°F (+6.1), 2023 74.0°F (−1.9), 2024 74.9°F (−1.0), 2025 76.2°F (+0.3). 3 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.6°F | +0.7°F | 0.22 in |
| 2022 | 82.0°F | +6.1°F | 0.29 in |
| 2023 | 74.0°F | −1.9°F | 0.04 in |
| 2024 | 74.9°F | −1.0°F | 0.06 in |
| 2025 | 76.2°F | +0.3°F | 0.11 in |
Source: records: ACIS, station USC00040192; recent months: ACIS, station USC00040192. Records and recent months use complete months only.
How does September in Anaheim compare across California?
Across the 219 places PlainClimate covers in California, September normal highs run from 64°F in Eureka to 104°F in Brawley; Anaheim's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.