Castries Weather in May

Saint Lucia · May climate averages and travel tips

Avg high28°C (82°F)
Avg low26°C (80°F)
Rainfall77 mm (3.0 in)
RatingGood 7.5/10

In May, Castries has average highs of 28°C (82°F) and lows of 26°C (80°F). The month is moderately rainy, with about 77 mm (3.0 in) of rain spread over 14 days. Humidity averages 77%, 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 May a good time to visit Castries?

May is a good time to visit Castries (7.5/10), though February and March are even better.

Visiting Castries in May

May weather in Castries

May feels warm and humid, with highs around 28°C and nights near 26°C. Rain falls on about 14 days, often in passing showers, so expect some damp spells rather than a washout every day. There's still around six hours of sun daily, which leaves time for a swim or a wander through the Castries Market.

The showers can interrupt a beach afternoon, and sticky conditions may make a long walk uphill less pleasant. Keep sightseeing flexible: visit the Cathedral Basilica of the Immaculate Conception or browse the market when clouds gather, then head to Vigie Beach if the sun returns.

May events and crowds

Saint Lucia Jazz & Arts Festival often includes May dates, with concerts and arts events around the island. The schedule changes each year, so Castries may feel busier when festival crowds arrive. Labour Day, on May 1, is a public holiday; some businesses may close or change their hours.

If you hate crowds, May can be a calmer choice than the busier February and March season. It's also a shoulder-season month, so you may find accommodation and tours cost less than in peak months. Festival dates can bring a short-lived rise in demand, though.

Tips for Castries in May

May is a good fit for a city break mixed with beach time, rather than a trip built around dry hiking days. For a day out, take a local minibus from Castries towards Rodney Bay; rain is higher in June, so May can be a useful window for exploring the north.

Travelling with kids? Visit Castries Market in the morning, when you can sample local snacks and look at fresh produce before the heat and showers set in. If rain catches you, the market's covered stalls make a more comfortable stop than an exposed beach.

May weather at a glance

Average high28°C (82°F)
Average low26°C (80°F)
Daily mean27°C (81°F)
Rainfall77 mm (3.0 in)
Rainy days (1 mm+)14
Humidity77%
Cloud cover54%
Daylight12.6 hours
Est. sunshine6.4 hours/day
Wind21.7 km/h
vs April1°C warmer than April, with similar rainfall.

What to pack for Castries in May

Castries weather in other months

Jan27°C / 25°C63 mmExcellentFeb26°C / 25°C39 mmExcellentMar27°C / 25°C37 mmExcellentApr27°C / 26°C72 mmExcellentMay28°C / 26°C77 mmGoodJun28°C / 27°C112 mmFairJul28°C / 27°C113 mmFairAug29°C / 27°C136 mmFairSep29°C / 28°C115 mmFairOct29°C / 27°C149 mmFairNov28°C / 27°C137 mmFairDec27°C / 26°C72 mmGood

← AprilBest time to visit CastriesJune →

Better weather in May nearby

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