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St Martin weather in September 2019
- 31°C max day temperature
31 - 8 hours of sunshine per day
- 19 days with some rainfall
19 - 25°C min night temperature
25 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 129 mm of monthly rainfall
129 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
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Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Martin in September. Check more long-term weather averages for St Martin in September before you book your next holiday to St Martin in 2019/2020.
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The September weather guide for St Martin shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Guide to St Martin weather in September
The average maximum daytime temperature in St Martin in September is a hot 31°C (88°F) with very high heat & humidity. The average night-time temperature is usually a warm 25°C (77°F). There are usually 8 hours of bright sunshine each day, which represents 63% of the 12 hours of daylight.
Expect 129mm (5.1 inches) of rainfall across the whole of September with 19 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.
The average sea temperature in and around St Martin in September is 29°C (84°F).
St Martin sunrise & sunset times for September 2019
Browse the sunrise & sunset times for St Martin in September 2019. Select a month to view St Martin sunrise & sunset times for the next twelve months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Sunday, 1st September 2019 | 05:58 | 18:26 |
| Monday, 2nd September 2019 | 05:58 | 18:26 |
| Tuesday, 3rd September 2019 | 05:58 | 18:25 |
| Wednesday, 4th September 2019 | 05:58 | 18:24 |
| Thursday, 5th September 2019 | 05:59 | 18:23 |
| Friday, 6th September 2019 | 05:59 | 18:22 |
| Saturday, 7th September 2019 | 05:59 | 18:22 |
| Sunday, 8th September 2019 | 05:59 | 18:21 |
| Monday, 9th September 2019 | 05:59 | 18:20 |
| Tuesday, 10th September 2019 | 05:59 | 18:19 |
| Wednesday, 11th September 2019 | 06:00 | 18:18 |
| Thursday, 12th September 2019 | 06:00 | 18:17 |
| Friday, 13th September 2019 | 06:00 | 18:16 |
| Saturday, 14th September 2019 | 06:00 | 18:16 |
| Sunday, 15th September 2019 | 06:00 | 18:15 |
| Monday, 16th September 2019 | 06:00 | 18:14 |
| Tuesday, 17th September 2019 | 06:00 | 18:13 |
| Wednesday, 18th September 2019 | 06:01 | 18:12 |
| Thursday, 19th September 2019 | 06:01 | 18:11 |
| Friday, 20th September 2019 | 06:01 | 18:10 |
| Saturday, 21st September 2019 | 06:01 | 18:10 |
| Sunday, 22nd September 2019 | 06:01 | 18:09 |
| Monday, 23rd September 2019 | 06:01 | 18:08 |
| Tuesday, 24th September 2019 | 06:02 | 18:07 |
| Wednesday, 25th September 2019 | 06:02 | 18:06 |
| Thursday, 26th September 2019 | 06:02 | 18:05 |
| Friday, 27th September 2019 | 06:02 | 18:04 |
| Saturday, 28th September 2019 | 06:02 | 18:04 |
| Sunday, 29th September 2019 | 06:02 | 18:03 |
| Monday, 30th September 2019 | 06:03 | 18:02 |
- Save up to 10% on cruises to St Martin
- Book Marella Cruises online with TUI
- Travel before 31st October 2020 (inclusive)
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