Marsa Alam Water Temperature
Updated Sun 05:38 (Africa/Cairo)
Egypt · Forecast updated Sep 20, 2026, 05:38 UTC
Current Sea Temperature
28.9°C
84.0°F
Very warm water
Valid Sep 20, 2026, 05:38 (Africa/Cairo). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.4°C below
The typical September average is 29.3°C (84.7°F) from the historical baseline.
Recent trend
Cooling by 0.3°C
Seven-day average: 29.3°C, versus 29.6°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for Marsa Alam, typical monthly averages range from about 21.6°C (70.9°F) in February to 30.9°C (87.6°F) in August.
Over the past 30 days, the average sea temperature in Marsa Alam has been 30.0°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Marsa Alam, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 21.7–22.7°C | 22.3°C / 72.1°F |
| February | 21.6–21.7°C | 21.6°C / 70.9°F |
| March | 22.1–22.8°C | 22.4°C / 72.3°F |
| April | 23.7–24.5°C | 24.0°C / 75.2°F |
| May | 25.4–25.8°C | 25.6°C / 78.1°F |
| June | 27.5–28.6°C | 28.1°C / 82.6°F |
| July | 30.2–31.0°C | 30.5°C / 86.9°F |
| August | 30.7–31.4°C | 30.9°C / 87.6°F |
| September | 29.1–29.7°C | 29.3°C / 84.7°F |
| October | 27.2–27.5°C | 27.4°C / 81.3°F |
| November | 25.0–26.5°C | 25.8°C / 78.4°F |
| December | 22.6–24.5°C | 23.6°C / 74.5°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (25.21, 34.96). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Marsa Alam in January
Typical January water temperature near Marsa Alam is 22.3°C (72.1°F), with yearly monthly means from 21.7–22.7°C.
Marsa Alam in February
Typical February water temperature near Marsa Alam is 21.6°C (70.9°F), with yearly monthly means from 21.6–21.7°C.
Marsa Alam in March
Typical March water temperature near Marsa Alam is 22.4°C (72.3°F), with yearly monthly means from 22.1–22.8°C.
Marsa Alam in April
Typical April water temperature near Marsa Alam is 24.0°C (75.2°F), with yearly monthly means from 23.7–24.5°C.
Marsa Alam in May
Typical May water temperature near Marsa Alam is 25.6°C (78.1°F), with yearly monthly means from 25.4–25.8°C.
Marsa Alam in June
Typical June water temperature near Marsa Alam is 28.1°C (82.6°F), with yearly monthly means from 27.5–28.6°C.
Marsa Alam in July
Typical July water temperature near Marsa Alam is 30.5°C (86.9°F), with yearly monthly means from 30.2–31.0°C.
Marsa Alam in August
Typical August water temperature near Marsa Alam is 30.9°C (87.6°F), with yearly monthly means from 30.7–31.4°C.
Marsa Alam in September
Typical September water temperature near Marsa Alam is 29.3°C (84.7°F), with yearly monthly means from 29.1–29.7°C.
Marsa Alam in October
Typical October water temperature near Marsa Alam is 27.4°C (81.3°F), with yearly monthly means from 27.2–27.5°C.
Marsa Alam in November
Typical November water temperature near Marsa Alam is 25.8°C (78.4°F), with yearly monthly means from 25.0–26.5°C.
Marsa Alam in December
Typical December water temperature near Marsa Alam is 23.6°C (74.5°F), with yearly monthly means from 22.6–24.5°C.
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 25.6°C / 78.1°F | 27.4°C / 81.3°F | 28.4°C / 83.1°F |
| July | 28.0°C / 82.4°F | 29.2°C / 84.5°F | 30.4°C / 86.7°F |
| August | 29.6°C / 85.3°F | 30.4°C / 86.8°F | 31.2°C / 88.2°F |
| September | 28.6°C / 83.5°F | 29.6°C / 85.2°F | 30.7°C / 87.3°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2678 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Marsa Alam
Quiet Red Sea coast known for dugongs, turtles and house reefs straight off the beach.
- Area
- Red Sea Governorate
Marsa Alam Water Temperature: Common Questions
What is the water temperature in Marsa Alam today?
The current sea surface temperature near Marsa Alam is 28.9°C (84.0°F). Over the last 30 days, the average has been 30.0°C.
When is the water warmest in Marsa Alam?
The water is typically warmest in August, at around 30.9°C (87.6°F) in the 2023–2025 historical baseline.
When is the water coldest in Marsa Alam?
The water is typically coldest in February, at around 21.6°C (70.9°F) in the same historical baseline.
Can you swim in Marsa Alam today?
At 28.9°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Marsa Alam.
View Snorkel Forecast →