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St. Lucia

St. Lucia Weather in July: Higher Risk of Rain

St. Lucia weather in July
Average high temperature and rainfall for St. Lucia in July. © 2023 Scott S. Bateman

St. Lucia weather in July has more rain thanks to the annual Caribbean hurricane season.

The eastern Caribbean island of St. Lucia lies near the islands of Martinique and Dominica, which are known for having heavy amounts of rain during hurricane season in particular.

St. Lucia doesn’t normally have as much rain as Martinique and Dominica, but it does have higher amounts than many other Caribbean islands during July.

The numbers below are historical averages and may vary somewhat in any single year. But they are useful guides in knowing what to expect with St. Lucia weather in July.

St. Lucia Temperatures in July

The average high temperature for St. Lucia reaches 87 degrees Fahrenheit or nearly 31 Celsius in May and stays there through October, according to St. Lucia Meteorological Services.

The average low temperature is 77 Fahrenheit or 25 Celsius, again from May through October including July.

Water temperatures will stay in the high 70s to low 80s Fahrenheit most of the time.

By comparison, July temperatures are only three degrees warmer than the winter months.

Rainfall in July

This video explains Caribbean weather in July and which islands are the best and worst to visit for weather.

Full-Screen Version | YouTube Caribbean Channel
The total average rainfall in July is nearly six inches, according to the St. Lucia Meteorological Service.

This compares to just less than three inches in May, a low of less than two inches in January and a high point of nearly eight inches in September and October.

It rains on average 21 days in July compared to 16 days in June. The low point is 11 days in January during the dry season. July and August are the high points of the year.

Should I Go in July?

St. Lucia’s weather in July offers the same warm weather as June but a much higher risk of rain. Anyone planning a cruise or resort visit in the summer that includes St. Lucia is better off choosing June rather than July.

• St. Lucia weather in January - February - March - April - May - June - July - August - September - October - November - December

Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas. He is the author of four books about cruising in the Caribbean, Alaska and Mexican Riviera.
June 24, 2023

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