Road Town (Tortola) weather in September

September in Road Town: sweltering, soaked, with clean air — a gamble, with 12 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Road Town British Virgin Islands · Lesser Antilles · City59
  1. 76Jan
  2. 75Feb
  3. 79Mar
  4. 76Apr
  5. 70May
  6. 68Jun
  7. 65Jul
  8. 62Aug
  9. 59Sep
  10. 57Oct
  11. 63Nov
  12. 72Dec

#11 of 12 months in Road Town · #1158 of 1413 destinations to visit in September · comfort 59/100 (tier D)

Days
31°C
Nights
27°C
Wet days
12
Sun
10.6 h
Humidity
81%
Daylight
12 h
Road Town, British Virgin Islands
Photo: Caleb Clark · Pexels

Traveller notes on Road Town in September

BVI's forum calls September a genuine 'roll of the dice' - it's both rainy season and the most active stretch of Atlantic hurricane season, running roughly early September through mid-October, though plenty of visitors have had excellent trips with no storm anywhere near. Day-to-day rain, when it does show up, tends to be a fast-moving, localized shower lasting minutes rather than hours - it's entirely normal for one side of Road Town to get soaked while the other stays sunny. Some restaurants and shops scale back or close for the month, with most reopening by mid-October.
TortolaRegular · September · 1 month ago · Read more on Tripadvisor ↗

Other months in Road Town

Forum posters describe late March as comfortable enough that a jacket isn't needed, though a light sweater or long-sleeve shirt is handy for breezy evenings. One temperature caveat worth knowing: the sea itself is only around 80F (about 26-27C) this early in the year, which posters are quick to note is not actually warm despite sounding pleasant on paper. For Road Town specifically, posters call it walkable from the cruise dock and fine for a shopping stop, but are candid it lacks major historical sights or standout beaches of its own - a $60 round-trip taxi is the going rate to reach the island's more scenic spots for a proper day out.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗

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

Road Town climate normals — September

Daytime high31°C / 88°F🔥 sweltering
Nighttime low27°C / 81°F
Feels like (high)35°C / 95°F
Sea temperature30°C / 86°F♨️ bath-warm
Rainfall160 mm / 6.3 in⛈ soaked
Rainy days12 days
Humidity81%💦 very humid
Dew point25°C / 76°F
Sunshine10.6 h/day
Daylight12.2 h
Wind27 km/h / 17 mph
Air quality (US AQI)34🍃 good

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

Crowds in Road Town in September

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.

Quietschool holidays in 2 of the markets that fill it, one of its worst months for weather(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Road Town'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).

Toughest weatherRoad Town's best weather comes in January, March and April — separate windows, not one continuous season.

September coincides with Atlantic hurricane season.

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Best weatherFair weatherToughest weather

What's on in Road Town in September

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

  • Hazard

    Atlantic hurricane season

    1 Jun – 30 Nov

    Irma went over Tortola in September 2017 and the charter fleet, the marinas and half the roofs went with it. Boats are hauled or moved south for the peak weeks from mid-August to mid-October, and the season's rates reflect it. Source ↗

What's on around the world in September →

Nearby, and something's on

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

Where is Road Town?

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Road Town in September — FAQ

Is September a good time to visit Road Town?
September in Road Town: sweltering, soaked, with clean air — a gamble, with 12 rainy days. It ranks #11 of 12 months for Road Town on SeasonMap's comfort score (59/100).
What is the weather like in Road Town in September?
In September, Road Town averages a daily high of 31.2°C and a low of 27.2°C, with about 159.7 mm of rain over roughly 11.6 rainy days.
What is the air quality in Road Town in September?
Road Town has a mean US Air Quality Index of about 34 in September.

Within 300 km: San Juan's Bioluminescent bay nights on 1 Jan – 31 Dec, and Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov.