Best places to dive in September
20 trip bases match. Ranked for any diver who wants water at 28°C or warmer.
Typical values are 1991–2020 averages and our site seasons.
Live switches on 48 hours before your trip. Add a start date under When.
BestGoodPossibleOff seasonYour month
#1IndonesiaDay boat only●●○Medium confidence: 3 sites on Divetip so far - Strength: Water 29°C in September
- Strength: 3 of 3 sites are in season in September
- Strength: Calm seas on almost every day
JFMAMJJASOND
Best April to NovemberWhy this match: 40 + 27 + 20 + 10 = 97
Season40 / 40
3 of 3 sites are in season in September; calm on almost every day.
Water27 / 27
Average 29°C; your minimum is 28°C. Pack a shorty or 3 mm wetsuit.
Your level20 / 20
No level picked, so all 3 sites count.
Weather10 / 13
Rain on about 1 day in 3; no real storm risk.
Points are scaled so the factors you set add up to 100. How we rank
#2MalaysiaDay boat only●●○Medium confidence: 3 sites on Divetip so far - Strength: Water 29°C in September
- Strength: 3 of 3 sites are in season in September
- Strength: Calm seas on almost every day
- Trade-off: Rain on most days
JFMAMJJASOND
Best April to DecemberWhy this match: 40 + 26 + 20 + 7 = 93
Season40 / 40
3 of 3 sites are in season in September; calm on almost every day.
Water26 / 27
Average 29°C; your minimum is 28°C. Pack a shorty or 3 mm wetsuit.
Your level20 / 20
No level picked, so all 3 sites count.
Weather7 / 13
Rain on most days; no real storm risk.
Points are scaled so the factors you set add up to 100. How we rank
#3EgyptDay boat or liveaboard●●○Medium confidence: 4 sites on Divetip so far - Strength: 3 of 4 sites are in season in September
- Strength: Calm seas on almost every day
- Strength: Mostly dry: rain on few days
- Trade-off: Water 27–28°C, below your 28°C
JFMAMJJASOND
Best March to NovemberWhy this match: 33 + 26 + 20 + 13 = 92
Season33 / 40
3 of 4 sites are in season in September; calm on almost every day.
Water26 / 27
Average 28°C; your minimum is 28°C. Pack a 3 mm wetsuit.
Your level20 / 20
No level picked, so all 4 sites count.
Weather13 / 13
Rain on few days; no real storm risk.
Points are scaled so the factors you set add up to 100. How we rank
#4IndonesiaLiveaboard or day boat●○○Low confidence: Area base: 1 site on Divetip so far - Strength: September is in season here
- Strength: Calm seas on almost every day
- Trade-off: Water 26–27°C, below your 28°C
- Unknown: Area base: 1 site on Divetip so far
JFMAMJJASOND
Best April to DecemberWhy this match: 39 + 21 + 20 + 13 = 93
Season39 / 40
The site is in season in September; calm on almost every day.
Water21 / 27
Average 27°C; your minimum is 28°C. Pack a 3 mm wetsuit.
Your level20 / 20
No level picked, so all 1 sites count.
Weather13 / 13
Rain on few days; no real storm risk.
Points are scaled so the factors you set add up to 100. How we rank
#5IndonesiaShore or day boat●●○Medium confidence: 3 sites on Divetip so far - Strength: Water 27–28°C in September
- Strength: Calm seas on almost every day
- Strength: Mostly dry: rain on few days
JFMAMJJASOND
Best May to June and October to NovemberWhy this match: 30 + 27 + 20 + 13 = 90
Season30 / 40
2 of 3 sites are in season in September; calm on almost every day.
Water27 / 27
Average 28°C; your minimum is 28°C. Pack a 3 mm wetsuit.
Your level20 / 20
No level picked, so all 3 sites count.
Weather13 / 13
Rain on few days; no real storm risk.
Points are scaled so the factors you set add up to 100. How we rank
Book your trip
Partner links: we may earn a commission if you book, at no extra cost to you. Partners never change the ranking.
Always check local conditions with your dive centre. Rankings are never paid for. Every month also has its own page: where to dive in September.
