Bonaire Weather in September
September in Bonaire sees daytime temperatures around 30°C (86°F) and lows of 27°C (81°F) at night. With around 84 mm (3.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Bonaire in September
Historically, the month has about 7 days of rain, averaging 84 mm (3.3 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Bonaire in September
In September, Bonaire gets high temperatures, with highs of 30°C (86°F). Nights cool to around 27°C (81°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 27°C (81°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.
Wind Speed in Bonaire in September
September sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.
Average water temperature in September
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Should you favor a climate that's both dry and comfortably warm, January, February, March, April, May, June, July, August and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bonaire, St Eustatius, Saba, check out our Bonaire's climate page.
Bonaire Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F)
Chance of Rain
24%
Precipitation
84 mm (3.3 in)
Rainy days
7 days
Humidity
76%
Windspeed
6 m/s (12 knots)
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bonaire typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in September
Historical weather for Bonaire in September
Browse day-by-day weather records for Bonaire spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bonaire historical weather extremes in September
According to our 30 years of weather records for Bonaire, the following extremes were recorded between 1995 and 2025.
- The hottest September day on record in Bonaire reached 38°C (100°F) (September 11, 1996).
- The lowest daytime temperature in September was 28°C (82°F), recorded on September 22, 2022.
- Bonaire registered its coldest September night on September 11, 2011, with temperatures dropping to 20°C (68°F).
Best Places in Bonaire, St Eustatius, Saba in September
Find out more about the weather in Bonaire, St Eustatius, Saba and which places have the best travel conditions in this month. See all of Bonaire, St Eustatius, Saba in September →
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What to Wear in Bonaire 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. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off.What To Do in Bonaire 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 Bonaire, St Eustatius, Saba, check out our Bonaire's climate page.
Temperature Rainfall Humidity Wind Speed Water Temp
See the full Bonaire climate overview or explore weather in Bonaire, St Eustatius, Saba.
