INSTRUMENT / SEA TEMPERATURE
To Sua Water Temperature
Updated Sat 14:59 (Pacific/Apia)
Samoa · Forecast updated Nov 7, 2026, 14:59 UTC
Current Sea Temperature
27.3°C
81.1°F
Warm water
Valid Nov 7, 2026, 14:59 (Pacific/Apia). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
1.5°C below
The typical November average is 28.8°C (83.8°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 27.4°C, versus 27.3°C in the prior seven days.
What to wear
Warm water
Most people are comfortable in swimwear or a light rash guard.
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 To Sua, typical monthly averages range from about 28.0°C (82.4°F) in September to 30.0°C (86.0°F) in March.
Over the past 30 days, the average sea temperature in To Sua has been 27.4°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near To Sua, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 29.4–30.2°C | 29.8°C / 85.6°F |
| February | 29.7–30.0°C | 29.9°C / 85.8°F |
| March | 29.6–30.6°C | 30.0°C / 86.0°F |
| April | 29.8–30.2°C | 30.0°C / 86.0°F |
| May | 29.2–30.2°C | 29.6°C / 85.3°F |
| June | 28.8–29.1°C | 29.0°C / 84.2°F |
| July | 28.3–28.5°C | 28.4°C / 83.1°F |
| August | 27.6–28.5°C | 28.1°C / 82.6°F |
| September | 27.8–28.3°C | 28.0°C / 82.4°F |
| October | 28.1–28.3°C | 28.2°C / 82.8°F |
| November | 28.5–29.0°C | 28.8°C / 83.8°F |
| December | 29.0–29.8°C | 29.4°C / 84.9°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-14.04, -171.46). 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.
To Sua in January
Typical January water temperature near To Sua is 29.8°C (85.6°F), with yearly monthly means from 29.4–30.2°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: December 29.4°C · February 29.9°C.
Explore To Sua sea temperature in January, including swim comfort and month comparisons →
To Sua in February
Typical February water temperature near To Sua is 29.9°C (85.8°F), with yearly monthly means from 29.7–30.0°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: January 29.8°C · March 30.0°C.
Explore To Sua sea temperature in February, including swim comfort and month comparisons →
To Sua in March
Typical March water temperature near To Sua is 30.0°C (86.0°F), with yearly monthly means from 29.6–30.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 29.9°C · April 30.0°C.
Explore To Sua sea temperature in March, including swim comfort and month comparisons →
To Sua in April
Typical April water temperature near To Sua is 30.0°C (86.0°F), with yearly monthly means from 29.8–30.2°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: March 30.0°C · May 29.6°C.
Explore To Sua sea temperature in April, including swim comfort and month comparisons →
To Sua in May
Typical May water temperature near To Sua is 29.6°C (85.3°F), with yearly monthly means from 29.2–30.2°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: April 30.0°C · June 29.0°C.
Explore To Sua sea temperature in May, including swim comfort and month comparisons →
To Sua in June
Typical June water temperature near To Sua is 29.0°C (84.2°F), with yearly monthly means from 28.8–29.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: May 29.6°C · July 28.4°C.
Explore To Sua sea temperature in June, including swim comfort and month comparisons →
To Sua in July
Typical July water temperature near To Sua is 28.4°C (83.1°F), with yearly monthly means from 28.3–28.5°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: June 29.0°C · August 28.1°C.
Explore To Sua sea temperature in July, including swim comfort and month comparisons →
To Sua in August
Typical August water temperature near To Sua is 28.1°C (82.6°F), with yearly monthly means from 27.6–28.5°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: July 28.4°C · September 28.0°C.
Explore To Sua sea temperature in August, including swim comfort and month comparisons →
To Sua in September
Typical September water temperature near To Sua is 28.0°C (82.4°F), with yearly monthly means from 27.8–28.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: August 28.1°C · October 28.2°C.
Explore To Sua sea temperature in September, including swim comfort and month comparisons →
To Sua in October
Typical October water temperature near To Sua is 28.2°C (82.8°F), with yearly monthly means from 28.1–28.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: September 28.0°C · November 28.8°C.
Explore To Sua sea temperature in October, including swim comfort and month comparisons →
To Sua in November
Typical November water temperature near To Sua is 28.8°C (83.8°F), with yearly monthly means from 28.5–29.0°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: October 28.2°C · December 29.4°C.
Explore To Sua sea temperature in November, including swim comfort and month comparisons →
To Sua in December
Typical December water temperature near To Sua is 29.4°C (84.9°F), with yearly monthly means from 29.0–29.8°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: November 28.8°C · January 29.8°C.
Explore To Sua 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 | 28.2°C / 82.8°F | 28.7°C / 83.7°F | 29.3°C / 84.7°F |
| July | 27.1°C / 80.8°F | 27.6°C / 81.7°F | 28.3°C / 82.9°F |
| August | 26.6°C / 79.9°F | 26.9°C / 80.5°F | 27.4°C / 81.3°F |
| September | 27.0°C / 80.6°F | 27.7°C / 81.9°F | 28.4°C / 83.1°F |
| October | 27.2°C / 81.0°F | 27.4°C / 81.3°F | 27.7°C / 81.9°F |
| November | 27.3°C / 81.1°F | 27.4°C / 81.3°F | 27.6°C / 81.7°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3839 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at To Sua
Famous swimming hole and nearby reef-fringed coast with clear shallows.
- Area
- Upolu
To Sua Water Temperature: Common Questions
What is the water temperature in To Sua today?
The current sea surface temperature near To Sua is 27.3°C (81.1°F). Over the last 30 days, the average has been 27.4°C.
When is the water warmest in To Sua?
The water is typically warmest in March, at around 30.0°C (86.0°F) in the 2023–2025 historical baseline.
When is the water coldest in To Sua?
The water is typically coldest in September, at around 28.0°C (82.4°F) in the same historical baseline.
Can you swim in To Sua today?
At 27.3°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 To Sua.
View Snorkel Forecast →