Marsa Alam in September: weather, sea temperature and trips
In September Marsa Alam averages 34°C by day and 25°C at night, and the sea is about 28°C. Still hot, with a sea of about 28°C, and quieter once the schools go back. Great for snorkelling, though it is one of the windiest months.
Marsa Alam in September at a glance
| Average | |
|---|---|
| Day temperature | 34°C |
| Night temperature | 25°C |
| Sea temperature | 28°C (27.3°C to 31.1°C over the past 10 years) |
| Sunshine | 11 hours a day |
| Rain | Usually no rain |
| Daylight | 12.3 hours; sunrise about 06:26, sunset about 18:44 |
| Wind | The windiest time of year (about 6 days in 10) |
| UV index | 11+ (extreme) |
Air, sea, sunshine and rain: long-term averages from Weather2Travel. Sea range: lowest and highest readings for the month over the past 10 years (SeaTemperature.info). Wind: share of days when the wind reached 30 km/h or more, ERA5 data for 2016 to 2025 via Open-Meteo. Sunrise and sunset on the 15th, Egypt time.
Sea temperature and swimming in September
The sea is cooling down. Average sea temperature: 29°C in August, 28°C in September and 27°C in October. You can snorkel for an hour or more without feeling cold.
No wetsuit needed. A rash vest or an old T-shirt protects your back from the sun while you snorkel.
What's running in September
The sea is still summer-warm and the boats are less crowded. The wind blows on about 6 days in 10, so book Sataya early and use calm days well; Marsa Mubarak and Abu Dabab are more sheltered.
Days are still about 34°C and Luxor is about 38°C. Desert trips such as the quad safari get more comfortable towards the end of the month.
Day-trip weather in September
| Trip | Day | Night |
|---|---|---|
| Luxor | 38°C | 21°C |
| Cairo and the pyramids | 33°C | 20°C |
Weather2Travel long-term averages. Luxor is inland, so its days are hotter and its nights cooler than on the coast.
Holidays and crowds in September
Schools go back in early September, so the resorts are quieter and hotel prices usually fall, while the sea is still at its warmest. It is one of the best-value months for a beach and snorkelling holiday.
What to book in September
Sataya dolphin reef by yacht
Warm water and fewer boats than in August; book early in case of wind.
Marsa Mubarak by boat
Turtles in a sheltered bay: good when the open sea is rough.
Abu Dabab bay by bus
Easy snorkelling from the beach, with turtles and seagrass.
Quad safari
Two hours on a quad, then Bedouin tea and a camel ride.
What to pack for Marsa Alam in September
- Swimwear, sunglasses and a hat
- High-factor sun cream (SPF 50): the UV index is very high, even when a breeze makes it feel cooler
- Light, loose clothes that cover your shoulders, and a refillable water bottle: in the midday heat you need to drink often
- A windproof layer for boat trips, as it is cooler on deck
- Reef shoes or water shoes for coral beaches and rocky entries
September in Sharm El Sheikh, Hurghada and Marsa Alam
| Resort | Day | Night | Sea | Windy days |
|---|---|---|---|---|
| Sharm El Sheikh | 34°C | 24°C | 27°C | rare |
| Hurghada | 32°C | 24°C | 27°C | 6/10 |
| Marsa Alam | 34°C | 25°C | 28°C | 6/10 |
Marsa Alam weather by month
| Month | Day | Night | Sea | Sun | Windy days |
|---|---|---|---|---|---|
| January | 23°C | 13°C | 23°C | 9 h | 3/10 |
| February | 24°C | 14°C | 22°C | 10 h | 3/10 |
| March | 27°C | 16°C | 23°C | 10 h | 4/10 |
| April | 30°C | 20°C | 23°C | 11 h | 4/10 |
| May | 32°C | 23°C | 25°C | 12 h | 5/10 |
| June | 34°C | 25°C | 27°C | 13 h | 6/10 |
| July | 35°C | 25°C | 28°C | 13 h | 4/10 |
| August | 35°C | 26°C | 29°C | 12 h | 5/10 |
| September | 34°C | 25°C | 28°C | 11 h | 6/10 |
| October | 32°C | 22°C | 27°C | 10 h | 3/10 |
| November | 27°C | 18°C | 26°C | 10 h | 1/10 |
| December | 25°C | 15°C | 24°C | 9 h | 2/10 |
Long-term averages from Weather2Travel. Windy days: share of days with wind of 30 km/h or more (ERA5, 2016 to 2025).
Frequently asked questions
What is the sea temperature in Marsa Alam in September?
About 28°C on average. Over the past 10 years, readings for September ranged from 27.3°C to 31.1°C.
Is it warm enough to swim in Marsa Alam in September?
Yes. At about 28°C the sea is at its warmest, and you can stay in for a long time without a wetsuit.
What is the weather like in Marsa Alam in September?
Average highs are 34°C and lows 25°C, with about 11 hours of sunshine a day and usually no rain.
Is September a good time to visit Marsa Alam?
Still hot, with a sea of about 28°C, and quieter once the schools go back. Great for snorkelling, though it is one of the windiest months.
Book or ask a question
Every tour on this page can be booked online from its page, with no prepayment: you pay on the day. To ask about dates, hotel pickup or private trips, write to us on WhatsApp at +20 101 337 0369 or Telegram at @sinbad_tour_bot, or call +20 100 687 2059.
Sources
- Weather2Travel: Marsa Alam climate by month
- SeaTemperature.info: Marsa Alam water temperature
- HEPCA: A management plan for Satayah reef (2018)
- HEPCA: February, as windy as it gets (Satayah and Samadai survey)
- Open-Meteo: historical weather API (ERA5), wind 2016 to 2025
- timeanddate.com: daylight saving time in Egypt
- Weather2Travel: Cairo climate
- Weather2Travel: Luxor climate
