Castries - When to Visit

When to Castries

Climate guide & best times to travel

Monthly Climate Data for Castries Average temperature and rainfall by month Climate Overview 18°C 22°C 27°C 31°C 36°C Rainfall (mm) 0 125 251 Jan Jan: 29.0°C high, 23.0°C low, 104mm rain Feb Feb: 29.0°C high, 23.0°C low, 71mm rain Mar Mar: 29.0°C high, 23.0°C low, 66mm rain Apr Apr: 30.0°C high, 24.0°C low, 86mm rain May May: 31.0°C high, 25.0°C low, 104mm rain Jun Jun: 30.0°C high, 25.0°C low, 157mm rain Jul Jul: 30.0°C high, 25.0°C low, 198mm rain Aug Aug: 31.0°C high, 25.0°C low, 218mm rain Sep Sep: 31.0°C high, 24.0°C low, 206mm rain Oct Oct: 31.0°C high, 24.0°C low, 251mm rain Nov Nov: 30.0°C high, 24.0°C low, 234mm rain Dec Dec: 29.0°C high, 23.0°C low, 130mm rain Temperature Rainfall
Castries enjoys a tropical maritime climate with consistently warm temperatures year-round and distinct wet and dry seasons. The dry season runs from January through May, with rainfall ranging from 2.6 to 4.1 inches and temperatures gradually warming from the mid-80s to upper 80s Fahrenheit. The wet season spans June through November, featuring significantly higher rainfall that peaks in October at 9.9 inches, though temperatures remain consistently warm in the upper 80s. Humidity stays steady at 70% throughout the year, creating a tropical atmosphere that's moderated by ocean breezes. The climate pattern makes this destination appealing year-round, though visitors should plan around the pronounced wet season when planning outdoor activities.

Best Time to Visit

Beach & Relaxation
January through April offer the best beach conditions with minimal rainfall (2.6-4.1 inches) and pleasant temperatures in the low-to-mid 80s.
Cultural Exploration
February and March are ideal with the lowest rainfall (2.8 and 2.6 inches respectively) and comfortable temperatures perfect for walking tours and outdoor cultural sites.
Adventure & Hiking
January through May provide the best hiking conditions during the dry season, with April and May offering warmer temperatures but still manageable rainfall levels.
Budget Travel
August through October offer potential savings during the wettest months, though visitors should prepare for frequent rain and higher humidity.

Month-by-Month Guide

January

January marks the heart of the dry season with comfortable temperatures and moderate rainfall. The pleasant weather makes it ideal for all outdoor activities, though this is peak tourist season.

84°F High
73°F Low
4.1 inches Rainfall
High Crowds
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February

February continues the dry season with reduced rainfall and consistently warm temperatures. The lower precipitation makes it excellent for beach activities and sightseeing.

84°F High
73°F Low
2.8 inches Rainfall
High Crowds
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March

March offers the driest conditions of the year with minimal rainfall and warming temperatures. This is considered one of the best months for visiting with optimal weather conditions.

85°F High
73°F Low
2.6 inches Rainfall
High Crowds
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April

April sees slightly increasing rainfall but maintains excellent weather conditions. Temperatures begin to warm as the dry season continues, making it perfect for outdoor exploration.

86°F High
75°F Low
3.4 inches Rainfall
Medium Crowds
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May

May marks the transition period with warming temperatures and increasing rainfall. Despite higher precipitation, it remains a good time to visit before the wet season intensifies.

87°F High
77°F Low
4.1 inches Rainfall
Medium Crowds
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June

June signals the beginning of the wet season with noticeably increased rainfall. Temperatures reach their summer levels, and visitors should expect more frequent tropical showers.

87°F High
77°F Low
6.2 inches Rainfall
Medium Crowds
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July

July brings heavier rainfall as the wet season establishes itself. Despite the increased precipitation, temperatures remain consistently warm, though outdoor activities may be interrupted by frequent showers.

87°F High
77°F Low
7.8 inches Rainfall
Medium Crowds
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August

August features the warmest temperatures of the year combined with substantial rainfall. The wet season is in full swing, making it important to plan indoor alternatives for rainy days.

88°F High
77°F Low
8.6 inches Rainfall
Low Crowds
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September

September continues the wet season pattern with high rainfall and peak temperatures. While still warm and tropical, visitors should be prepared for frequent rain and potential weather disruptions.

88°F High
76°F Low
8.1 inches Rainfall
Low Crowds
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October

October typically sees the highest rainfall of the year while maintaining warm temperatures. This is the wettest month, requiring careful planning around weather patterns for outdoor activities.

88°F High
76°F Low
9.9 inches Rainfall
Low Crowds
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November

November remains quite wet as the rainy season continues, though temperatures begin to moderate slightly. The high rainfall makes this a challenging month for extensive outdoor exploration.

86°F High
75°F Low
9.2 inches Rainfall
Low Crowds
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December

December marks the transition toward the dry season with decreasing rainfall and pleasant temperatures. While still experiencing some wet weather, conditions begin improving for the upcoming peak season.

85°F High
74°F Low
5.1 inches Rainfall
Medium Crowds
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Activities in Castries