Gustavia (St Barts) weather in July

July in Gustavia: hot, a little rain, with muggy air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Gustavia Saint Barthélemy · Lesser Antilles · Island85
  1. 89Jan
  2. 89Feb
  3. 90Mar
  4. 89Apr
  5. 88May
  6. 88Jun
  7. 85Jul
  8. 84Aug
  9. 81Sep
  10. 81Oct
  11. 82Nov
  12. 88Dec

#8 of 12 months in Gustavia · #480 of 1413 destinations to visit in July · comfort 85/100 (tier A)

Days
28°C
Nights
27°C
Wet days
17
Sun
11.7 h
Humidity
81%
Daylight
13 h
Gustavia, Saint Barthélemy
Photo: Originally uploaded at en · CC BY-SA 3.0

Traveller notes on Gustavia in July

Other months in Gustavia

St. Barths' forum doesn't hide that October is the island's off-season for good reason - deep in hurricane season, with Gustavia turning into something close to a ghost town as most shops shutter, though core restaurants stay open. When there's no storm system nearby the weather can be genuinely lovely, but posters were honest that the opposite is possible too: one traveler reported four straight days of rain totaling over 12 inches. The trade-off multiple regulars highlighted: the lowest room rates of the year and zero crowds, for anyone willing to accept real weather risk.
StBarthsRegular · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe April as close to ideal - typically around 84F with low precipitation, and while forecasts often show rain in the mix, posters say it usually amounts to no more than about 10 minutes of actual rain on a given day. Any rain that does fall tends to be a fast-moving, widely scattered shower lasting minutes rather than a sustained downpour, with prolonged rain called genuinely rare this time of year. Posters call the good-weather run typically holding through March into April before conditions shift later in the year. For Gustavia specifically, posters describe the harbor town as St. Barth's main hub - plenty of shops and restaurants clustered around the waterfront, an easy, walkable base for exploring the rest of the island.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Gustavia's card on the map.

Gustavia climate normals — July

Daytime high28°C / 82°F🥵 hot
Nighttime low27°C / 80°F
Feels like (high)31°C / 88°F
Sea temperature29°C / 84°F♨️ bath-warm
Rainfall75 mm / 2.9 in🌦 some rain
Rainy days17 days
Humidity81%💦 very humid
Dew point24°C / 75°F
Sunshine11.7 h/day
Daylight13.1 h
Wind33 km/h / 20 mph
Air quality (US AQI)61🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Gustavia in July

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Gustavia's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherGustavia's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Gustavia in July

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Atlantic hurricane season

    1 Jun – 30 Nov

    Most of the season passes without incident, but this is the island Irma flattened in September 2017 and the rebuild took years. Mid-August to mid-October is the part of the window worth insuring against. Source ↗

What's on around the world in July →

Nearby, and something's on

Within 300 km of Gustavia — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Gustavia?

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Gustavia in July — FAQ

Is July a good time to visit Gustavia?
July in Gustavia: hot, a little rain, with muggy air — an excellent time to visit. It ranks #8 of 12 months for Gustavia on SeasonMap's comfort score (85/100).
What is the weather like in Gustavia in July?
In July, Gustavia averages a daily high of 28°C and a low of 26.6°C, with about 74.6 mm of rain over roughly 16.6 rainy days.
What is the air quality in Gustavia in July?
Gustavia has a mean US Air Quality Index of about 61 in July.

Within 300 km: Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov, and Pointe-à-Pitre's Tour cycliste de la Guadeloupe on 31 Jul – 9 Aug.