Climate averages 1991–2020
Anaheim weather
in August.
A hot, very dry month: the warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Anaheim: daytime highs average 29.1°C and nights cool to about 17.9°C. By daytime temperature it is the warmest month of the year.
Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 25 min on an average August day.
The nearest other city in this atlas is Fullerton (4 km away). In August its highs average 31.6°C, 2.5°C warmer than Anaheim, with almost no rain (under 1 mm).
Among the 498 cities listed in the United States, Anaheim ranks joint 281st of 498 for the warmest August highs and joint 13th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Anaheim is 0.9°C cooler than that mean.
From August to September, average highs fall by 0.8°C to 28.2°C, and monthly rainfall rises from under 1 mm to 3.6 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Anaheim climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.1°C6.8°C | 6.8°C | 71 | 5.2 | 10.210 h |
| February | 18.2°C7.7°C | 7.7°C | 79 | 6.1 | 10.911 h |
| March | 19.4°C9.4°C | 9.4°C | 46 | 5.1 | 12.012 h |
| April | 21.2°C10.9°C | 10.9°C | 18 | 2.6 | 13.013 h |
| May | 22.6°C13.1°C | 13.1°C | 7.4 | 1.5 | 13.914 h |
| June | 25.0°C14.9°C | 14.9°C | 1.8 | 0.3 | 14.414 h |
| July | 27.8°C17.2°C | 17.2°C | 1.3 | 0.4 | 14.214 h |
| August, selected | 29.1°C17.9°C | 17.9°C | 0.4 | 0.1 | 13.413 h |
| September | 28.2°C17.4°C | 17.4°C | 3.6 | 0.5 | 12.412 h |
| October | 25.2°C14.3°C | 14.3°C | 14 | 1.9 | 11.411 h |
| November | 21.6°C10.1°C | 10.1°C | 19 | 2.4 | 10.410 h |
| December | 17.9°C6.6°C | 6.6°C | 48 | 4.9 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Fullerton in AugustUnited States · 4 kmHigh 31.6°C · Low 18.7°C · 0.4 mm rain
- Buena Park in AugustUnited States · 9 kmHigh 31.2°C · Low 18.4°C · 0.4 mm rain
- Santa Ana, United States in AugustUnited States · 11 kmHigh 26.7°C · Low 18.1°C · 0.9 mm rain
- Westminster (California), United States in AugustUnited States · 12 kmHigh 28.6°C · Low 17.9°C · 0.4 mm rain
- Whittier in AugustUnited States · 19 kmHigh 31.6°C · Low 18.7°C · 0.5 mm rain
- Irvine in AugustUnited States · 20 kmHigh 28.2°C · Low 18.9°C · 0.9 mm rain
- Huntington Beach in AugustUnited States · 21 kmHigh 26.5°C · Low 18.1°C · 0.4 mm rain
- Chino Hills in AugustUnited States · 23 kmHigh 31.2°C · Low 18.4°C · 0.9 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Anaheim) is explained once on the Anaheim year overview and on the Sources, method and limits page.
Huntington Beach, Fullerton and Westminster (California), United States lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.