Antigua (St John's) weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: December – June
What is the weather like in Antigua (St John's) in July?
In July, Antigua (St John's) is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 17 days, totalling 82 mm. The air is often humid and muggy. It is often windy, with gusts of around 33 km/h. All in all, July is a good month for a holiday in Antigua (St John's).
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 13 h 4 min05:41 – 18:45
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 33 km/haverage daily peakAll months
- Cloud cover
- 49 %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 %78 %
- Few rainy daysweight 20 %8 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Antigua (St John's) in July: quick answers
Is Antigua (St John's) hot in July?
Yes. In July, Antigua (St John's) is hot: daytime highs average 29 °C and nights stay around 26 °C.
Can you swim in Antigua (St John's) in July?
Yes. In July the sea averages 28.2 °C – lovely and warm for swimming.
Does it rain much in Antigua (St John's) in July?
It rains often – on about 17 days, adding up to 82 mm.
Antigua (St John's) month by month
The whole year in Antigua (St John's)All destinations: Antigua and BarbudaCaribbean weather in JulyWhere to go in JulySea temperature in July
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