Dominican Republic
San Juan de la Maguana weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit San Juan de la Maguana?
For a warm holiday, the best week has been 19–25 January (Weather Index 97). Favourable start dates for a 7-day trip run from 21 December to 20 February. July, August and September are warmest (31°C), January is driest and March and May to August have the most sun.
Hurricane season runs from 1 June to 30 November and is most active from mid-August to mid-October. These averages don’t show storm risk, so check the forecast and your travel cover nearer the time.
- Warmest
- July, August and September 31°C
- Coolest
- November to May 29°C
- Driest
- January 15% rain-day chance
- Wettest
- September 67% rain-day chance
- Sunniest
- March and May to August 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 San Juan de la Maguana
San Juan de la Maguana 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 | 28.6 | 18.4 | 15.2 | 4.7 | 13.2 | 10.4 |
| February | 28.8 | 18.7 | 22.5 | 6.3 | 19.2 | 11.1 |
| March | 28.9 | 19.9 | 38.7 | 12.0 | 73.4 | 11.6 |
| April | 28.9 | 21.2 | 62.3 | 18.7 | 119.1 | 11.4 |
| May | 29.3 | 22.0 | 57.1 | 17.7 | 95.7 | 11.7 |
| June | 30.0 | 22.3 | 51.7 | 15.5 | 59.4 | 11.9 |
| July | 30.7 | 22.3 | 53.5 | 16.6 | 67.7 | 12.1 |
| August | 31.1 | 22.6 | 55.2 | 17.1 | 98.0 | 11.6 |
| September | 30.9 | 22.4 | 67.3 | 20.2 | 117.8 | 10.7 |
| October | 29.9 | 21.8 | 59.7 | 18.5 | 122.3 | 9.9 |
| November | 29.4 | 20.8 | 39.0 | 11.7 | 71.9 | 10.2 |
| December | 29.0 | 19.1 | 17.1 | 5.3 | 22.7 | 10.6 |
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.