Gustavia Weather in August

Saint Barthelemy · August climate averages and travel tips

Avg high29°C (84°F)
Avg low28°C (83°F)
Rainfall68 mm (2.7 in)
RatingFair 6.3/10

Gustavia in August sees daytime temperatures around 29°C (84°F), dropping to about 28°C (83°F) at night. The month is moderately rainy, with about 68 mm (2.7 in) of rain spread over 17 days. Humidity averages 79%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.6 hours of daylight and a mix of sun and cloud.

Is August a good time to visit Gustavia?

August is a fair time to visit Gustavia (6.3/10) mainly because of the rain. For better weather, go in December to April.

Visiting Gustavia in August

August weather

August feels hot, sticky and summery in Gustavia. Days reach 29°C, and nights barely cool, with humidity at 79%. Rain falls on 17 days, often as showers that can interrupt a beach afternoon or make a walk slippery.

There's still plenty of sun between showers, so you can swim at Shell Beach or browse the harbourfront shops. Save the steep walk up to Fort Karl for a dry spell, and don't count on an uninterrupted day outdoors. September is wetter, while December to April is a better bet for reliably drier sightseeing.

Events and island pace

Assumption Day on August 15 is a public holiday in Saint Barthélemy. You may find church services at the Catholic church in Gustavia, and some local businesses may close for the day. It's a quieter, local moment rather than a major festival with a full programme.

If you hate crowds, August can suit you better than the busy winter season. Visitor numbers and prices are generally lower than from December to April, but the trade-off is that some restaurants and shops take a seasonal break. Check that your favourite Gustavia spot is open before making it the centre of your day.

Making the most of it

Travelling with kids? Keep Shell Beach as an easy swim stop, then duck into Gustavia's shops if a shower rolls over. The short distances around the harbour make it simple to change plans without losing the day.

For a practical local tip, ask about the day's sea conditions before taking a boat from Gustavia. Summer showers can bring choppier water, and a sheltered harbour stroll may be a better choice than a trip offshore. For dinner, try accras—seasoned fish fritters—if they're on the menu. They're a familiar island snack, and a relaxed way to round off a warm evening.

August weather at a glance

Average high29°C (84°F)
Average low28°C (83°F)
Daily mean29°C (83°F)
Rainfall68 mm (2.7 in)
Rainy days (1 mm+)17
Humidity79%
Cloud cover47%
Daylight12.6 hours
Est. sunshine7.3 hours/day
Wind20.7 km/h
vs JulyAbout as warm as July, with 11 mm more rain.

What to pack for Gustavia in August

Gustavia weather in other months

Jan26°C / 26°C21 mmExcellentFeb26°C / 25°C16 mmExcellentMar26°C / 25°C15 mmExcellentApr27°C / 26°C28 mmExcellentMay28°C / 27°C62 mmGoodJun28°C / 28°C46 mmGoodJul29°C / 28°C57 mmGoodAug29°C / 28°C68 mmFairSep29°C / 28°C83 mmFairOct29°C / 28°C116 mmFairNov28°C / 27°C80 mmGoodDec27°C / 26°C34 mmExcellent

← JulyBest time to visit GustaviaSeptember →

Better weather in August nearby

Nearby in August

Where else is good in August? See where to go in August.