Barbados, the Gem of the Caribbean
This small island is home to friendly locals, fantastic restaurants, beautiful landscapes, and impressive marine life. Barbados is frequently described as the “Gem of the Caribbean”.
September in Saint James brings high temperatures, with highs of 30°C (86°F) and nights dropping to 27°C (81°F). Rainfall is on the higher side this month, averaging around 149 mm (5.9 in), so keep a rain jacket handy.
If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Saint James. Our weather planner can help you explore destinations with more pleasant weather conditions.
Pick a month to see the average temperature, rainfall and sunshine in Saint James - and find the best time to visit.
47-year average (1976-2025)
Based on our historical records, temperatures in Saint James typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Browse day-by-day weather records for Saint James spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Saint James spans 2002 to 2026, revealing these weather extremes.
Find out more about the weather in Barbados and which places have the best travel conditions in this month. See all of Barbados in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Saint James in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Saint James climate overview or explore weather in Barbados.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Barbados, the Gem of the Caribbean
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