Antigua (St John's) weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: December – June
What is the weather like in Antigua (St John's) in January?
In January, Antigua (St John's) is warm: daytime highs average 26 °C, and even at night it stays warm at around 24 °C. The sea averages 26.7 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 34 mm in total. The air is often humid and muggy. It is often windy, with gusts of around 31 km/h. All in all, January is an excellent month for a holiday in Antigua (St John's).
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 83 | 87 | 91 |
| Day | 27° | 26° | 26° |
| Night | 25° | 24° | 24° |
| Sea | 28° | 27° | 26° |
| Sun | 8 h | 8 h | 8 h |
| Rain days | 13 | 11 | 9 |
More details for January
- Daylight
- 11 h 12 min06:40 – 17:52
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 31 km/haverage daily peakAll months
- Cloud cover
- 31 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−4America/Antigua
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %83 %
- Few rainy daysweight 20 %52 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Antigua (St John's) in January: quick answers
Is Antigua (St John's) hot in January?
Warm rather than hot: in January, daytime highs in Antigua (St John's) average 26 °C and nights cool to about 24 °C.
Can you swim in Antigua (St John's) in January?
Yes. In January the sea averages 26.7 °C – lovely and warm for swimming.
Does it rain much in Antigua (St John's) in January?
Rain is frequent, with about 11 rainy days and 34 mm in total.
Antigua (St John's) month by month
The whole year in Antigua (St John's)All destinations: Antigua and BarbudaCaribbean weather in JanuaryWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences