Monthly climate averages for Saint Joseph, Dominica. Based on 10-year ERA5 reanalysis data.
Am Tropical Monsoon
Climate OverviewSaint Joseph, Dominica in May has hot conditions, with highs reaching 28.1°C (83°F) and afternoons the warmest part of the day. Winds are noticeable. Sea temperature reaches 28.6°C (83°F).
This month falls at the end of Spring.
Temperatures remain fairly steady throughout May, with daily highs around 28°C (82°F).
Rainfall is heaviest during the last third of the month, while the middle tends to be drier.
The warmest days tend to fall around the 18th, averaging 28.3°C (83°F).
Daily averages based on historical data (2016–2025)
Daytime temperatures around 28°C (83°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
1 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 26°C / 25°C | 28°C / 25°C | 11days (29 mm) Wet | 10.5h Excellent | 77% Humid | 6.9 High | Excellent | View Details |
| February best | 26°C / 24°C | 28°C / 24°C | 9days (27 mm) Wet | 10.8h Excellent | 77% Humid | 7.9 Very High | Excellent | View Details |
| March | 27°C / 25°C | 29°C / 25°C | 9days (26 mm) Wet | 11.2h Excellent | 77% Humid | 8.8 Very High | Good | View Details |
| April | 27°C / 25°C | 30°C / 26°C | 9days (33 mm) Wet | 11.6h Excellent | 78% Humid | 8.9 Very High | Good | View Details |
| May | 28°C / 26°C | 31°C / 27°C | 9days (38 mm) Wet | 11.7h Excellent | 79% Humid | 8.7 Very High | Fair | View Details |
| June | 28°C / 26°C | 31°C / 28°C | 11days (50 mm) Wet | 11.5h Excellent | 80% Humid | 8.6 Very High | Fair | View Details |
| July | 29°C / 26°C | 32°C / 28°C | 17days (84 mm) Wet | 11.6h Excellent | 82% Humid | 8.7 Very High | Fair | View Details |
| August | 29°C / 27°C | 33°C / 29°C | 17days (98 mm) Wet | 11.4h Excellent | 82% Humid | 8.8 Very High | Fair | View Details |
| September | 29°C / 27°C | 34°C / 30°C | 17days (126 mm) Wet | 10.9h Excellent | 81% Humid | 8.5 Very High | Fair | View Details |
| October | 29°C / 27°C | 33°C / 29°C | 18days (122 mm) Wet | 10.3h Excellent | 82% Humid | 7.7 Very High | Wet | View Details |
| November | 28°C / 26°C | 31°C / 28°C | 16days (106 mm) Wet | 10.1h Excellent | 81% Humid | 7.1 Very High | Fair | View Details |
| December | 27°C / 25°C | 29°C / 26°C | 14days (46 mm) Wet | 10.1h Excellent | 79% Humid | 6.6 High | Good | View Details |
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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