Charlotte Amalie Weather in September

U.S. Virgin Islands · September climate averages and travel tips

Avg high29°C (85°F)
Avg low28°C (83°F)
Rainfall128 mm (5.0 in)
RatingPoor 4.2/10

Charlotte Amalie in September sees daytime temperatures around 29°C (85°F), dropping to about 28°C (83°F) at night. The month is wet, with about 128 mm (5.0 in) of rain spread over 21 days, making it the second wettest month of the year. Humidity averages 78%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.1 hours of daylight and a mix of sun and cloud.

Is September a good time to visit Charlotte Amalie?

September is not the best time to visit Charlotte Amalie (4.2/10) mainly because of the rain. The weather is much better in January to April.

Visiting Charlotte Amalie in September

September weather

September feels hot, sticky and often cloudy in Charlotte Amalie. The high is 29°C and the low is 28°C, with 78% humidity. Rain falls on 21 days, though showers don't necessarily last all day. You'll get about 6.3 hours of sun each day.

That mix can interrupt beach time and leave the stone streets slick. Keep indoor stops like the St. Thomas Synagogue or Fort Christian in mind for rainy spells. The 99 Steps are steep; take care there when wet. September gets less rain than October, but more than August.

What to do

A passing shower can still leave time for a waterfront stroll or a meal of kallaloo, a leafy stew found in the islands. For a beach day, Magens Bay is a popular choice, but don't count on clear skies all day. Boat trips and snorkelling are more weather-dependent, so keep your plans flexible.

If you hate crowds, September can suit you: it's low season, unlike the busier winter months. You'll generally find fewer visitors and lower prices than during the January-to-April high season. Some tour operators may run less often, so check local options before setting out.

Events and local tips

Labor Day is observed in the U.S. Virgin Islands in September, though it isn't a major Charlotte Amalie festival. This is also hurricane season, so tropical weather can disrupt ferries or excursions. Watch local notices if a storm is approaching.

Travelling with kids? Try the Pirates of the Caribbean Museum near the waterfront for an indoor break. For a practical local tip, use the covered arcades along Main Street when a shower hits; you can duck between shops without leaving the historic shopping district.

September weather at a glance

Average high29°C (85°F)
Average low28°C (83°F)
Daily mean29°C (84°F)
Rainfall128 mm (5.0 in)
Rainy days (1 mm+)21
Humidity78%
Cloud cover53%
Daylight12.1 hours
Est. sunshine6.3 hours/day
Wind16.5 km/h
vs AugustAbout as warm as August, with 19 mm more rain.

What to pack for Charlotte Amalie in September

Charlotte Amalie weather in other months

Jan26°C / 26°C33 mmExcellentFeb26°C / 25°C28 mmExcellentMar26°C / 25°C31 mmExcellentApr27°C / 26°C44 mmExcellentMay28°C / 27°C90 mmFairJun29°C / 28°C74 mmFairJul29°C / 28°C85 mmFairAug29°C / 28°C109 mmPoorSep29°C / 28°C128 mmPoorOct29°C / 28°C140 mmFairNov28°C / 27°C112 mmFairDec27°C / 26°C47 mmExcellent

← AugustBest time to visit Charlotte AmalieOctober →

Better weather in September nearby

Nearby in September

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