Basseterre (Saint Kitts) weather in May

May in Basseterre: sweltering, a little rain, with clean air — fine if you can take sticky heat.

Updated September 2026 · climate normals from ERA5 reanalysis

Basseterre Saint Kitts and Nevis · Lesser Antilles · Island87
  1. 90Jan
  2. 89Feb
  3. 91Mar
  4. 89Apr
  5. 87May
  6. 87Jun
  7. 84Jul
  8. 82Aug
  9. 79Sep
  10. 80Oct
  11. 82Nov
  12. 88Dec

#6 of 12 months in Basseterre · #310 of 1413 destinations to visit in May · comfort 87/100 (tier A)

Days
31°C
Nights
25°C
Wet days
13
Sun
11.6 h
Humidity
78%
Daylight
13 h
Basseterre, Saint Kitts and Nevis
Photo: Cara Denison · Pexels

Traveller notes on Basseterre in May

Other months in Basseterre

Forum posters cite average October rainfall around 4.9 inches, with the typical pattern being daily passing showers somewhere on the island lasting 5-30 minutes rather than a full day of continuous rain, though a slow-moving tropical system can occasionally bring an all-day washout. Posters describe late August through mid-to-late October as the most active stretch of Atlantic hurricane season, though they're careful to note the odds of any specific week's visit being hit by a hurricane remain genuinely small - historical records cited show only a handful of storms have directly affected the St Kitts and Nevis area in October across more than 150 years of records. Posters generally rate October as genuinely within hurricane season with real but statistically modest storm risk, day-to-day rain typically brief enough not to derail plans for Basseterre.
Tripadvisor community · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe St. Kitts as lush and mountainous, with brief showers falling somewhere on the island most days, but consistently emphasize these are short, minutes-long affairs that rarely disrupt a vacation. One visitor who spent 21 days on the island across two April and October trips reported only four 15-minute showers total across that whole stretch. Posters generally place April within the pleasant dry-season window, with one flagging a late-April visit that coincided with the tail end of a drought affecting coastal areas - a reminder that a normally wetter-leaning island can still run genuinely dry in a given year. Posters generally rate April as a comfortable, mostly sunny time to visit Basseterre.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

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

Basseterre climate normals — May

Daytime high31°C / 88°F🔥 sweltering
Nighttime low25°C / 77°F
Feels like (high)34°C / 93°F
Sea temperature28°C / 83°F♨️ bath-warm
Rainfall50 mm / 2 in🌦 some rain
Rainy days13 days
Humidity78%💦 very humid
Dew point23°C / 74°F
Sunshine11.6 h/day
Daylight12.9 h
Wind30 km/h / 19 mph
Air quality (US AQI)35🍃 good

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

Crowds in Basseterre in May

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 seasonan ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Basseterre'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 weatherBasseterre's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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Nearby, and something's on

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

Where is Basseterre?

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Basseterre in May — FAQ

Is May a good time to visit Basseterre?
May in Basseterre: sweltering, a little rain, with clean air — fine if you can take sticky heat. It ranks #6 of 12 months for Basseterre on SeasonMap's comfort score (87/100).
What is the weather like in Basseterre in May?
In May, Basseterre averages a daily high of 31.2°C and a low of 25.1°C, with about 50 mm of rain over roughly 13.1 rainy days.
What is the air quality in Basseterre in May?
Basseterre has a mean US Air Quality Index of about 35 in May.

Within 300 km: Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov, and Charlotte Amalie's St Thomas Carnival on 26 Apr – 2 May.