INSTRUMENT / SEA TEMPERATURE
Exmouth Water Temperature
Updated Thu 05:01 (Australia/Brisbane)
Australia · Forecast updated Nov 12, 2026, 05:01 UTC
Current Sea Temperature
24.1°C
75.4°F
Mild water
Valid Nov 12, 2026, 05:01 (Australia/Brisbane). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
1.1°C below
The typical November average is 25.2°C (77.4°F) from the historical baseline.
Recent trend
Warming by 0.4°C
Seven-day average: 23.3°C, versus 23.0°C in the prior seven days.
What to wear
Mild water
A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
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 Exmouth, typical monthly averages range from about 20.9°C (69.6°F) in July to 29.1°C (84.4°F) in March.
Over the past 30 days, the average sea temperature in Exmouth has been 23.2°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Exmouth, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 24.1–30.3°C | 26.9°C / 80.4°F |
| February | 27.4–28.7°C | 28.1°C / 82.6°F |
| March | 28.5–30.3°C | 29.1°C / 84.4°F |
| April | 26.3–29.0°C | 27.7°C / 81.9°F |
| May | 24.4–26.0°C | 25.4°C / 77.7°F |
| June | 21.9–23.5°C | 22.8°C / 73.0°F |
| July | 19.7–21.8°C | 20.9°C / 69.6°F |
| August | 21.2–22.4°C | 21.6°C / 70.9°F |
| September | 22.4–23.5°C | 23.0°C / 73.4°F |
| October | 23.9–24.8°C | 24.4°C / 75.9°F |
| November | 24.6–25.8°C | 25.2°C / 77.4°F |
| December | 24.8–28.2°C | 26.5°C / 79.7°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-21.96, 114.21). 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.
Exmouth in January
Typical January water temperature near Exmouth is 26.9°C (80.4°F), with yearly monthly means from 24.1–30.3°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: December 26.5°C · February 28.1°C.
Explore Exmouth sea temperature in January, including swim comfort and month comparisons →
Exmouth in February
Typical February water temperature near Exmouth is 28.1°C (82.6°F), with yearly monthly means from 27.4–28.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: January 26.9°C · March 29.1°C.
Explore Exmouth sea temperature in February, including swim comfort and month comparisons →
Exmouth in March
Typical March water temperature near Exmouth is 29.1°C (84.4°F), with yearly monthly means from 28.5–30.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 28.1°C · April 27.7°C.
Explore Exmouth sea temperature in March, including swim comfort and month comparisons →
Exmouth in April
Typical April water temperature near Exmouth is 27.7°C (81.9°F), with yearly monthly means from 26.3–29.0°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: March 29.1°C · May 25.4°C.
Explore Exmouth sea temperature in April, including swim comfort and month comparisons →
Exmouth in May
Typical May water temperature near Exmouth is 25.4°C (77.7°F), with yearly monthly means from 24.4–26.0°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: April 27.7°C · June 22.8°C.
Explore Exmouth sea temperature in May, including swim comfort and month comparisons →
Exmouth in June
Typical June water temperature near Exmouth is 22.8°C (73.0°F), with yearly monthly means from 21.9–23.5°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: May 25.4°C · July 20.9°C.
Explore Exmouth sea temperature in June, including swim comfort and month comparisons →
Exmouth in July
Typical July water temperature near Exmouth is 20.9°C (69.6°F), with yearly monthly means from 19.7–21.8°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: June 22.8°C · August 21.6°C.
Explore Exmouth sea temperature in July, including swim comfort and month comparisons →
Exmouth in August
Typical August water temperature near Exmouth is 21.6°C (70.9°F), with yearly monthly means from 21.2–22.4°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: July 20.9°C · September 23.0°C.
Explore Exmouth sea temperature in August, including swim comfort and month comparisons →
Exmouth in September
Typical September water temperature near Exmouth is 23.0°C (73.4°F), with yearly monthly means from 22.4–23.5°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: August 21.6°C · October 24.4°C.
Explore Exmouth sea temperature in September, including swim comfort and month comparisons →
Exmouth in October
Typical October water temperature near Exmouth is 24.4°C (75.9°F), with yearly monthly means from 23.9–24.8°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: September 23.0°C · November 25.2°C.
Explore Exmouth sea temperature in October, including swim comfort and month comparisons →
Exmouth in November
Typical November water temperature near Exmouth is 25.2°C (77.4°F), with yearly monthly means from 24.6–25.8°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: October 24.4°C · December 26.5°C.
Explore Exmouth sea temperature in November, including swim comfort and month comparisons →
Exmouth in December
Typical December water temperature near Exmouth is 26.5°C (79.7°F), with yearly monthly means from 24.8–28.2°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: November 25.2°C · January 26.9°C.
Explore Exmouth 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 |
|---|---|---|---|
| August | 21.2°C / 70.2°F | 22.3°C / 72.2°F | 23.5°C / 74.3°F |
| September | 22.8°C / 73.0°F | 23.5°C / 74.4°F | 24.5°C / 76.1°F |
| October | 22.2°C / 72.0°F | 23.5°C / 74.3°F | 24.4°C / 75.9°F |
| November | 22.7°C / 72.9°F | 23.4°C / 74.1°F | 24.4°C / 75.9°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2294 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Exmouth
Ningaloo gateway with shore-access reef, turtles and seasonal whale sharks.
- Area
- Western Australia
Exmouth Water Temperature: Common Questions
What is the water temperature in Exmouth today?
The current sea surface temperature near Exmouth is 24.1°C (75.4°F). Over the last 30 days, the average has been 23.2°C.
When is the water warmest in Exmouth?
The water is typically warmest in March, at around 29.1°C (84.4°F) in the 2023–2025 historical baseline.
When is the water coldest in Exmouth?
The water is typically coldest in July, at around 20.9°C (69.6°F) in the same historical baseline.
Can you swim in Exmouth today?
At 24.1°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 Exmouth.
View Snorkel Forecast →