Climate of Saint John, Antigua & Barbuda
Area-weighted average across Saint John. For where people actually live and travel, see the cities below.
Saint John, a subdivision of Antigua and Barbuda, has a consistently warm climate on average. Area-weighted monthly temperatures across the whole territory range from 25.1°C / 77.2°F in January to 28°C / 82.4°F in August, with rainfall from 44 mm / 1.7 in to 150 mm / 5.9 in depending on the season (1132 mm / 44.6 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 25.1°C77.2°F | 78 mm3.1″ | — |
| February | 25.2°C77.4°F | 44 mm1.7″ | — |
| March | 25.6°C78.1°F | 50 mm2″ | — |
| April | 26.2°C79.2°F | 58 mm2.3″ | — |
| May | 27°C80.6°F | 95 mm3.7″ | Tropical |
| June | 27.7°C81.9°F | 84 mm3.3″ | Tropical |
| July | 27.9°C82.2°F | 90 mm3.5″ | Tropical |
| August | 28°C82.4°F | 132 mm5.2″ | Tropical |
| September | 27.8°C82°F | 150 mm5.9″ | Tropical |
| October | 27.4°C81.3°F | 123 mm4.8″ | Tropical |
| November | 26.6°C79.9°F | 124 mm4.9″ | Tropical |
| December | 25.7°C78.3°F | 104 mm4.1″ | Tropical |
Frequently asked questions
What is the best time to visit Saint John?
Saint John, Antigua and Barbuda does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 28°C / 82.4°F, and the driest is February at 44 mm / 1.7 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Saint John?
Saint John, Antigua and Barbuda has area-weighted monthly average temperatures ranging from 25.1°C / 77.2°F in January to 28°C / 82.4°F in August. Annual rainfall averages about 1132 mm / 44.6 in, with the wettest month being September (150 mm / 5.9 in) and the driest February (44 mm / 1.7 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Saint John?
The hottest month in Saint John is August, with an area-wide average temperature of 28°C / 82.4°F.
What is the coldest month in Saint John?
The coldest month in Saint John is January, with an area-wide average temperature of 25.1°C / 77.2°F.
When does it rain most in Saint John?
The wettest month in Saint John is September, averaging about 150 mm / 5.9 in of rainfall. The driest is February with about 44 mm / 1.7 in.