INSTRUMENT / SEA TEMPERATURE
Mamanuca Islands Water Temperature
Updated Sun 15:57 (Pacific/Fiji)
Fiji · Forecast updated Nov 8, 2026, 15:57 UTC
Current Sea Temperature
26.6°C
79.9°F
Warm water
Valid Nov 8, 2026, 15:57 (Pacific/Fiji). 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 28.1°C (82.6°F) from the historical baseline.
Recent trend
Warming by 0.4°C
Seven-day average: 26.9°C, versus 26.5°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 Mamanuca Islands, typical monthly averages range from about 26.3°C (79.3°F) in August to 29.8°C (85.6°F) in February.
Over the past 30 days, the average sea temperature in Mamanuca Islands has been 26.4°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Mamanuca Islands, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 29.4–29.8°C | 29.6°C / 85.3°F |
| February | 29.7–29.9°C | 29.8°C / 85.6°F |
| March | 29.4–29.6°C | 29.5°C / 85.1°F |
| April | 29.5–29.7°C | 29.6°C / 85.3°F |
| May | 28.8–28.9°C | 28.8°C / 83.8°F |
| June | 27.7–27.8°C | 27.7°C / 81.9°F |
| July | 26.4–27.1°C | 26.8°C / 80.2°F |
| August | 26.1–26.4°C | 26.3°C / 79.3°F |
| September | 26.4–26.6°C | 26.5°C / 79.7°F |
| October | 26.7–27.5°C | 27.1°C / 80.8°F |
| November | 27.8–28.3°C | 28.1°C / 82.6°F |
| December | 28.7–29.7°C | 29.1°C / 84.4°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-17.71, 177.13). 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.
Mamanuca Islands in January
Typical January water temperature near Mamanuca Islands is 29.6°C (85.3°F), with yearly monthly means from 29.4–29.8°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: December 29.1°C · February 29.8°C.
Explore Mamanuca Islands sea temperature in January, including swim comfort and month comparisons →
Mamanuca Islands in February
Typical February water temperature near Mamanuca Islands is 29.8°C (85.6°F), with yearly monthly means from 29.7–29.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: January 29.6°C · March 29.5°C.
Explore Mamanuca Islands sea temperature in February, including swim comfort and month comparisons →
Mamanuca Islands in March
Typical March water temperature near Mamanuca Islands is 29.5°C (85.1°F), with yearly monthly means from 29.4–29.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 29.8°C · April 29.6°C.
Explore Mamanuca Islands sea temperature in March, including swim comfort and month comparisons →
Mamanuca Islands in April
Typical April water temperature near Mamanuca Islands is 29.6°C (85.3°F), with yearly monthly means from 29.5–29.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: March 29.5°C · May 28.8°C.
Explore Mamanuca Islands sea temperature in April, including swim comfort and month comparisons →
Mamanuca Islands in May
Typical May water temperature near Mamanuca Islands is 28.8°C (83.8°F), with yearly monthly means from 28.8–28.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: April 29.6°C · June 27.7°C.
Explore Mamanuca Islands sea temperature in May, including swim comfort and month comparisons →
Mamanuca Islands in June
Typical June water temperature near Mamanuca Islands is 27.7°C (81.9°F), with yearly monthly means from 27.7–27.8°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: May 28.8°C · July 26.8°C.
Explore Mamanuca Islands sea temperature in June, including swim comfort and month comparisons →
Mamanuca Islands in July
Typical July water temperature near Mamanuca Islands is 26.8°C (80.2°F), with yearly monthly means from 26.4–27.1°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: June 27.7°C · August 26.3°C.
Explore Mamanuca Islands sea temperature in July, including swim comfort and month comparisons →
Mamanuca Islands in August
Typical August water temperature near Mamanuca Islands is 26.3°C (79.3°F), with yearly monthly means from 26.1–26.4°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: July 26.8°C · September 26.5°C.
Explore Mamanuca Islands sea temperature in August, including swim comfort and month comparisons →
Mamanuca Islands in September
Typical September water temperature near Mamanuca Islands is 26.5°C (79.7°F), with yearly monthly means from 26.4–26.6°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: August 26.3°C · October 27.1°C.
Mamanuca Islands in October
Typical October water temperature near Mamanuca Islands is 27.1°C (80.8°F), with yearly monthly means from 26.7–27.5°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: September 26.5°C · November 28.1°C.
Explore Mamanuca Islands sea temperature in October, including swim comfort and month comparisons →
Mamanuca Islands in November
Typical November water temperature near Mamanuca Islands is 28.1°C (82.6°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: October 27.1°C · December 29.1°C.
Explore Mamanuca Islands sea temperature in November, including swim comfort and month comparisons →
Mamanuca Islands in December
Typical December water temperature near Mamanuca Islands is 29.1°C (84.4°F), with yearly monthly means from 28.7–29.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: November 28.1°C · January 29.6°C.
Explore Mamanuca Islands 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 | 26.0°C / 78.8°F | 26.9°C / 80.4°F | 28.2°C / 82.8°F |
| July | 25.2°C / 77.4°F | 25.8°C / 78.5°F | 26.3°C / 79.3°F |
| August | 24.9°C / 76.8°F | 25.5°C / 78.0°F | 26.1°C / 79.0°F |
| September | 25.2°C / 77.4°F | 25.7°C / 78.3°F | 26.8°C / 80.2°F |
| October | 25.3°C / 77.5°F | 26.1°C / 79.0°F | 26.8°C / 80.2°F |
| November | 26.6°C / 79.9°F | 26.9°C / 80.4°F | 27.3°C / 81.1°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 Mamanuca Islands
Resort islands ringed by shallow coral and clear lagoon shallows.
- Area
- Western
Mamanuca Islands Water Temperature: Common Questions
What is the water temperature in Mamanuca Islands today?
The current sea surface temperature near Mamanuca Islands is 26.6°C (79.9°F). Over the last 30 days, the average has been 26.4°C.
When is the water warmest in Mamanuca Islands?
The water is typically warmest in February, at around 29.8°C (85.6°F) in the 2022–2025 historical baseline.
When is the water coldest in Mamanuca Islands?
The water is typically coldest in August, at around 26.3°C (79.3°F) in the same historical baseline.
Can you swim in Mamanuca Islands today?
At 26.6°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 Mamanuca Islands.
View Snorkel Forecast →