Climate averages 1991–2020
West Palm Beach weather
in August.
A hot, wet month: one of the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in West Palm Beach: daytime highs average 30.3°C and nights cool to about 25.3°C. By daytime temperature it is one of the warmest months of the year.
Expect about 166 mm of rain on roughly 24 days, which makes August a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 05 min on an average August day.
The nearest other city in this atlas is Boynton Beach (21 km away). In August its highs average 30.5°C, about as warm as West Palm Beach, with 159 mm of rain.
Among the 498 cities listed in the United States, West Palm Beach ranks joint 215th of 498 for the warmest August highs and 489th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; West Palm Beach is 0.4°C warmer than that mean.
From August to September, average highs fall by 1.0°C to 29.3°C, and monthly rainfall rises from 166 mm to 179 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
West Palm Beach climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.6°C16.3°C | 16.3°C | 52 | 7.1 | 10.711 h |
| February | 23.7°C16.9°C | 16.9°C | 48 | 6.5 | 11.211 h |
| March | 24.9°C18.1°C | 18.1°C | 66 | 7.8 | 12.012 h |
| April | 26.7°C20.1°C | 20.1°C | 65 | 8.4 | 12.813 h |
| May | 28.4°C22.2°C | 22.2°C | 100 | 12.4 | 13.413 h |
| June | 29.6°C24.3°C | 24.3°C | 165 | 21.1 | 13.814 h |
| July | 30.3°C25.1°C | 25.1°C | 134 | 22.4 | 13.614 h |
| August, selected | 30.3°C25.3°C | 25.3°C | 166 | 24.1 | 13.113 h |
| September | 29.3°C24.8°C | 24.8°C | 179 | 23.3 | 12.312 h |
| October | 27.5°C23.1°C | 23.1°C | 116 | 15.0 | 11.512 h |
| November | 25.2°C20.2°C | 20.2°C | 56 | 9.3 | 10.911 h |
| December | 23.6°C18.0°C | 18.0°C | 42 | 7.4 | 10.510 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
- Boynton Beach in AugustUnited States · 21 kmHigh 30.5°C · Low 25.3°C · 159 mm rain
- Boca Raton in AugustUnited States · 40 kmHigh 30.6°C · Low 25.1°C · 142 mm rain
- Deerfield Beach in AugustUnited States · 44 kmHigh 30.7°C · Low 25.2°C · 142 mm rain
- Pompano Beach in AugustUnited States · 54 kmHigh 30.6°C · Low 25.3°C · 142 mm rain
- Coral Springs in AugustUnited States · 54 kmHigh 31.1°C · Low 24.5°C · 182 mm rain
- Fort Lauderdale in AugustUnited States · 67 kmHigh 30.2°C · Low 25.5°C · 163 mm rain
- Port Saint Lucie in AugustUnited States · 71 kmHigh 30.9°C · Low 24.9°C · 123 mm rain
- Davie in AugustUnited States · 75 kmHigh 30.4°C · Low 25.4°C · 163 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 West Palm Beach) is explained once on the West Palm Beach year overview and on the Sources, method and limits page.