INSTRUMENT / SEA TEMPERATURE
Praslin Water Temperature
Updated Sun 15:55 (Indian/Mahe)
Seychelles · Forecast updated Nov 8, 2026, 15:55 UTC
Current Sea Temperature
30.1°C
86.2°F
Very warm water
Valid Nov 8, 2026, 15:55 (Indian/Mahe). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
1.1°C above
The typical November average is 29.0°C (84.2°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 29.9°C, versus 29.7°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 Praslin, typical monthly averages range from about 26.4°C (79.5°F) in August to 30.6°C (87.1°F) in April.
Over the past 30 days, the average sea temperature in Praslin has been 29.5°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Praslin, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 28.3–29.5°C | 28.8°C / 83.8°F |
| February | 28.6–30.1°C | 29.3°C / 84.7°F |
| March | 30.0–30.3°C | 30.1°C / 86.2°F |
| April | 30.4–30.7°C | 30.6°C / 87.1°F |
| May | 29.8–30.0°C | 29.8°C / 85.6°F |
| June | 28.1–28.9°C | 28.4°C / 83.1°F |
| July | 26.5–27.2°C | 26.8°C / 80.2°F |
| August | 25.7–26.9°C | 26.4°C / 79.5°F |
| September | 26.1–28.2°C | 27.4°C / 81.3°F |
| October | 26.8–28.5°C | 27.9°C / 82.2°F |
| November | 28.2–29.7°C | 29.0°C / 84.2°F |
| December | 27.7–29.6°C | 28.7°C / 83.7°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-4.29, 55.71). 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 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Praslin in January
Typical January water temperature near Praslin is 28.8°C (83.8°F), with yearly monthly means from 28.3–29.5°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: December 28.7°C · February 29.3°C.
Explore Praslin sea temperature in January, including swim comfort and month comparisons →
Praslin in February
Typical February water temperature near Praslin is 29.3°C (84.7°F), with yearly monthly means from 28.6–30.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: January 28.8°C · March 30.1°C.
Explore Praslin sea temperature in February, including swim comfort and month comparisons →
Praslin in March
Typical March water temperature near Praslin is 30.1°C (86.2°F), with yearly monthly means from 30.0–30.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 29.3°C · April 30.6°C.
Explore Praslin sea temperature in March, including swim comfort and month comparisons →
Praslin in April
Typical April water temperature near Praslin is 30.6°C (87.1°F), with yearly monthly means from 30.4–30.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: March 30.1°C · May 29.8°C.
Explore Praslin sea temperature in April, including swim comfort and month comparisons →
Praslin in May
Typical May water temperature near Praslin is 29.8°C (85.6°F), with yearly monthly means from 29.8–30.0°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: April 30.6°C · June 28.4°C.
Explore Praslin sea temperature in May, including swim comfort and month comparisons →
Praslin in June
Typical June water temperature near Praslin is 28.4°C (83.1°F), with yearly monthly means from 28.1–28.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: May 29.8°C · July 26.8°C.
Explore Praslin sea temperature in June, including swim comfort and month comparisons →
Praslin in July
Typical July water temperature near Praslin is 26.8°C (80.2°F), with yearly monthly means from 26.5–27.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: June 28.4°C · August 26.4°C.
Explore Praslin sea temperature in July, including swim comfort and month comparisons →
Praslin in August
Typical August water temperature near Praslin is 26.4°C (79.5°F), with yearly monthly means from 25.7–26.9°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: July 26.8°C · September 27.4°C.
Explore Praslin sea temperature in August, including swim comfort and month comparisons →
Praslin in September
Typical September water temperature near Praslin is 27.4°C (81.3°F), with yearly monthly means from 26.1–28.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: August 26.4°C · October 27.9°C.
Explore Praslin sea temperature in September, including swim comfort and month comparisons →
Praslin in October
Typical October water temperature near Praslin is 27.9°C (82.2°F), with yearly monthly means from 26.8–28.5°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: September 27.4°C · November 29.0°C.
Explore Praslin sea temperature in October, including swim comfort and month comparisons →
Praslin in November
Typical November water temperature near Praslin is 29.0°C (84.2°F), with yearly monthly means from 28.2–29.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: October 27.9°C · December 28.7°C.
Explore Praslin sea temperature in November, including swim comfort and month comparisons →
Praslin in December
Typical December water temperature near Praslin is 28.7°C (83.7°F), with yearly monthly means from 27.7–29.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: November 29.0°C · January 28.8°C.
Explore Praslin sea temperature in December, including swim comfort and month comparisons →
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 | 27.0°C / 80.6°F | 27.6°C / 81.8°F | 28.4°C / 83.1°F |
| July | 26.8°C / 80.2°F | 27.4°C / 81.3°F | 28.0°C / 82.4°F |
| August | 27.3°C / 81.1°F | 27.7°C / 81.8°F | 28.4°C / 83.1°F |
| September | 27.9°C / 82.2°F | 28.6°C / 83.4°F | 29.2°C / 84.6°F |
| October | 28.8°C / 83.8°F | 29.2°C / 84.6°F | 30.5°C / 86.9°F |
| November | 29.6°C / 85.3°F | 29.9°C / 85.8°F | 30.5°C / 86.9°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3864 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Praslin
Granite island with St Pierre islet's coral and warm clear Indian Ocean water.
- Area
- Praslin
Praslin Water Temperature: Common Questions
What is the water temperature in Praslin today?
The current sea surface temperature near Praslin is 30.1°C (86.2°F). Over the last 30 days, the average has been 29.5°C.
When is the water warmest in Praslin?
The water is typically warmest in April, at around 30.6°C (87.1°F) in the 2022–2025 historical baseline.
When is the water coldest in Praslin?
The water is typically coldest in August, at around 26.4°C (79.5°F) in the same historical baseline.
Can you swim in Praslin today?
At 30.1°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 Praslin.
View Snorkel Forecast →