Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
September verdict
Good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 7.6h per day, enough for a balanced month. Rainfall averages 229mm, so showers are a real planning factor.
Monthly averages
Temp
31°C
Rain
229mm
Sun
7.6h
Sea
29°C
Weather score
58
Good
Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 229mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.6h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Grand Bahama, Bahamas with nearby places by weather score, rain, sun, temperature, and swim conditions.
September31°C average high
September is one of Grand Bahama's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September229mm average rain
September is one of Grand Bahama's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September7.6 hours average sun
September is below Grand Bahama's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to May and July to August
This stretch has the strongest sunshine in the monthly averages.
September29°C average sea
September is one of Grand Bahama's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
September58 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsApril to May and November
These months have the strongest weather score in the monthly averages.