Saint John’s Climate by Month
Saint John’s, Saint John Parish, Antigua and Barbuda
Warm all year, with rain spread through the year.
Warm all year, with rain spread through the year: that's Saint John’s's climate in short. Expect highs of 89°F (32°C) in August and 84°F (29°C) in January, with the coldest nights (February) near 72°F (22°C). About 48 in (1229 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 89°F(32°C)
- Average high, August
- Coldest nights
- 72°F(22°C)
- Average low, February
- Rain per year
- 48 in(1229 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: July
Best and worst months in Saint John’s
Best for weatherThe most comfortable weather comes in February and March, with highs around 84°F (29°C) and about 1.9 in (47 mm) of rain a month.
Least pleasantAugust and September are the least pleasant; September is the hottest, with highs of 89°F (32°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in February.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Saint John’s weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 84°F(29°C) | 73°F(23°C) | 3.6 in(91 mm) | 76% | 4.7 |
| FebFebruaryBest | 84°F(29°C) | 72°F(22°C) | 1.8 in(46 mm) | 73% | 5.2 |
| MarMarchBest | 85°F(29°C) | 73°F(23°C) | 1.9 in(48 mm) | 71% | 5.8 |
| AprApril | 86°F(30°C) | 74°F(24°C) | 2.2 in(57 mm) | 74% | 6.0 |
| MayMay | 87°F(30°C) | 76°F(25°C) | 3.8 in(97 mm) | 76% | 5.9 |
| JunJune | 88°F(31°C) | 78°F(25°C) | 3.5 in(88 mm) | 76% | 5.9 |
| JulJuly | 88°F(31°C) | 78°F(25°C) | 4.2 in(107 mm) | 75% | 6.1 |
| AugAugust | 89°F(32°C) | 78°F(26°C) | 5.9 in(150 mm) | 77% | 6.0 |
| SepSeptember | 89°F(32°C) | 77°F(25°C) | 6.5 in(166 mm) | 78% | 5.5 |
| OctOctober | 88°F(31°C) | 77°F(25°C) | 5.6 in(141 mm) | 79% | 5.1 |
| NovNovember | 86°F(30°C) | 75°F(24°C) | 5.0 in(126 mm) | 78% | 4.6 |
| DecDecember | 85°F(29°C) | 74°F(23°C) | 4.4 in(112 mm) | 76% | 4.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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