Jamaica
Montego Bay weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Montego Bay?
For a warm holiday, the best week has been 23–29 January (Weather Index 94). Favourable start dates for a 7-day trip run from 21 December to 7 February. July, August and September are warmest (32°C), January is driest and April 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 32°C
- Coolest
- December to March 29°C
- Driest
- January 39% rain-day chance
- Wettest
- September 88% rain-day chance
- Sunniest
- April 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 Montego Bay
Montego Bay 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 | 23.9 | 39.0 | 12.1 | 45.8 | 10.6 |
| February | 28.7 | 23.9 | 46.1 | 12.9 | 41.4 | 10.9 |
| March | 29.3 | 24.2 | 51.9 | 16.1 | 69.6 | 11.4 |
| April | 30.0 | 25.0 | 64.0 | 19.2 | 121.3 | 11.9 |
| May | 30.7 | 25.9 | 76.8 | 23.8 | 213.1 | 11.5 |
| June | 31.4 | 26.5 | 70.0 | 21.0 | 155.2 | 11.6 |
| July | 31.6 | 26.9 | 74.2 | 23.0 | 140.1 | 12.3 |
| August | 31.7 | 27.0 | 82.9 | 25.7 | 169.6 | 11.5 |
| September | 31.5 | 26.9 | 87.7 | 26.3 | 184.7 | 11.1 |
| October | 30.7 | 26.4 | 81.9 | 25.4 | 216.0 | 10.5 |
| November | 29.7 | 25.6 | 58.3 | 17.5 | 117.1 | 9.9 |
| December | 29.0 | 24.9 | 40.6 | 12.6 | 43.7 | 10.1 |
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.