Caye Caulker Weather in September
In Caye Caulker, September brings very high daytime temperatures around 30°C (86°F), with nights cooling to 27°C (81°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Caye Caulker in September
Caye Caulker is in the rainy season in September, with rain on around 17 days and an average of 226 mm (8.9 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Caye Caulker in September
September in Caye Caulker sees highs of 30°C (86°F) and lows of 27°C (81°F) overnight. For most visitors, the main thing to prepare for is the heat during the day. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down. Average temperatures can be deceiving; some days will be hotter. Wear breathable fabrics and drink plenty of water to stay cool.
Sunshine in Caye Caulker in September
With about 180 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.September in Caye Caulker has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belize, check out our Caye Caulker's climate page.
Caye Caulker Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
56%
Precipitation
226 mm (8.9 in)
Rainy days
17 days
Humidity
84% *
Sunshine
180 hours *
Percentage Sunshine
*
Daily Historical Temperatures
41-year average (1976-2025)
Based on our historical records, temperatures in Caye Caulker typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
41-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Caye Caulker in September
Browse day-by-day weather records for Caye Caulker spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Caye Caulker historical weather extremes in September
According to our 21 years of weather records for Caye Caulker, the following extremes were recorded between 2004 and 2025.
- Caye Caulker recorded its highest September temperature of 35°C (95°F) on September 14, 2004.
- The coldest September day was on September 26, 2014, with a maximum of 27°C (81°F).
- The lowest overnight temperature recorded in September was 12°C (54°F) (September 12, 2025).
- The wettest September day on record brought 127 mm (5 in) of precipitation to Caye Caulker (September 24, 2009).
Best Places in Belize in September
Find out more about the weather in Belize and which places have the best travel conditions in this month. See all of Belize in September →
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What to Wear in Caye Caulker in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Caye Caulker in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belize, check out our Caye Caulker's climate page.
Temperature Rainfall Sunshine Humidity
See the full Caye Caulker climate overview or explore weather in Belize.
