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Boynton Beach weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Boynton Beach?
For a warm holiday, the best week has been 26 March – 1 April (Weather Index 95). Favourable start dates for a 7-day trip run from 8 March to 23 April. July and August are warmest (32°C), February and March are driest and April and May have the most sun.
- Warmest
- July and August 32°C
- Coolest
- January 24°C
- Driest
- February and March 20% rain-day chance
- Wettest
- August 87% rain-day chance
- Sunniest
- April and May 12 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Boynton Beach
Boynton Beach historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 23.9 | 15.5 | 23.5 | 7.3 | 49.1 | 8.8 |
| February | 26.1 | 18.0 | 19.6 | 5.5 | 37.9 | 10.1 |
| March | 27.2 | 18.7 | 20.3 | 6.3 | 45.3 | 10.5 |
| April | 28.6 | 20.9 | 31.3 | 9.4 | 72.3 | 11.7 |
| May | 30.1 | 23.1 | 51.3 | 15.9 | 140.8 | 11.5 |
| June | 31.0 | 24.8 | 81.7 | 24.5 | 284.9 | 10.5 |
| July | 32.1 | 25.6 | 84.5 | 26.2 | 221.8 | 11.2 |
| August | 32.1 | 25.8 | 86.8 | 26.9 | 236.0 | 10.9 |
| September | 31.3 | 25.1 | 80.7 | 24.2 | 245.9 | 10.0 |
| October | 29.4 | 23.7 | 56.5 | 17.5 | 138.5 | 9.7 |
| November | 27.0 | 20.2 | 30.0 | 9.0 | 75.1 | 9.0 |
| December | 25.3 | 17.7 | 22.3 | 6.9 | 44.2 | 8.8 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.