Climate averages 1991–2020
West Palm Beach weather
in December.
A warm, moderately wet month: the 11th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in West Palm Beach: daytime highs average 23.6°C and nights cool to about 18.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 42 mm of rain on roughly 7 days, which makes December a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 30 min on an average December day.
The nearest other city in this atlas is Boynton Beach (21 km away). In December its highs average 23.9°C, about as warm as West Palm Beach, with 42 mm of rain.
Among the 498 cities listed in the United States, West Palm Beach ranks 19th of 498 for the warmest December highs and joint 90th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; West Palm Beach is 13.0°C warmer than that mean.
From December to January, average highs fall by 1.0°C to 22.6°C, and monthly rainfall rises from 42 mm to 52 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Boynton Beach in DecemberUnited States · 21 kmHigh 23.9°C · Low 18.0°C · 42 mm rain
- Boca Raton in DecemberUnited States · 40 kmHigh 24.0°C · Low 18.0°C · 43 mm rain
- Deerfield Beach in DecemberUnited States · 44 kmHigh 24.2°C · Low 18.0°C · 43 mm rain
- Pompano Beach in DecemberUnited States · 54 kmHigh 24.1°C · Low 18.5°C · 43 mm rain
- Coral Springs in DecemberUnited States · 54 kmHigh 24.4°C · Low 17.2°C · 34 mm rain
- Fort Lauderdale in DecemberUnited States · 67 kmHigh 24.0°C · Low 18.8°C · 41 mm rain
- Port Saint Lucie in DecemberUnited States · 71 kmHigh 23.2°C · Low 16.6°C · 41 mm rain
- Davie in DecemberUnited States · 75 kmHigh 24.2°C · Low 18.6°C · 41 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.