INSTRUMENT / SEA TEMPERATURE
Jervis Bay Water Temperature
Updated Sun 15:57 (Australia/Brisbane)
Australia · Forecast updated Nov 8, 2026, 15:57 UTC
Current Sea Temperature
19.2°C
66.6°F
Cool water
Valid Nov 8, 2026, 15:57 (Australia/Brisbane). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
Close to average
The typical November average is 19.0°C (66.2°F) from the historical baseline.
Recent trend
Warming by 1.2°C
Seven-day average: 19.5°C, versus 18.3°C in the prior seven days.
What to wear
Cool water
A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
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 Jervis Bay, typical monthly averages range from about 17.3°C (63.1°F) in August to 22.7°C (72.9°F) in February.
Over the past 30 days, the average sea temperature in Jervis Bay has been 18.9°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Jervis Bay, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 20.8–21.9°C | 21.3°C / 70.3°F |
| February | 22.4–23.1°C | 22.7°C / 72.9°F |
| March | 21.6–22.7°C | 22.3°C / 72.1°F |
| April | 21.6–22.1°C | 21.8°C / 71.2°F |
| May | 20.2–21.1°C | 20.7°C / 69.3°F |
| June | 18.7–19.1°C | 19.0°C / 66.2°F |
| July | 17.2–17.6°C | 17.4°C / 63.3°F |
| August | 16.6–18.0°C | 17.3°C / 63.1°F |
| September | 17.1–18.5°C | 17.8°C / 64.0°F |
| October | 18.5–19.1°C | 18.8°C / 65.8°F |
| November | 18.9–19.1°C | 19.0°C / 66.2°F |
| December | 19.0–20.6°C | 20.0°C / 68.0°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-35.13, 150.79). 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.
Jervis Bay in January
Typical January water temperature near Jervis Bay is 21.3°C (70.3°F), with yearly monthly means from 20.8–21.9°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: December 20.0°C · February 22.7°C.
Explore Jervis Bay sea temperature in January, including swim comfort and month comparisons →
Jervis Bay in February
Typical February water temperature near Jervis Bay is 22.7°C (72.9°F), with yearly monthly means from 22.4–23.1°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: January 21.3°C · March 22.3°C.
Explore Jervis Bay sea temperature in February, including swim comfort and month comparisons →
Jervis Bay in March
Typical March water temperature near Jervis Bay is 22.3°C (72.1°F), with yearly monthly means from 21.6–22.7°C.
Swimming and snorkeling: mild water. A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Adjacent months: February 22.7°C · April 21.8°C.
Explore Jervis Bay sea temperature in March, including swim comfort and month comparisons →
Jervis Bay in April
Typical April water temperature near Jervis Bay is 21.8°C (71.2°F), with yearly monthly means from 21.6–22.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: March 22.3°C · May 20.7°C.
Explore Jervis Bay sea temperature in April, including swim comfort and month comparisons →
Jervis Bay in May
Typical May water temperature near Jervis Bay is 20.7°C (69.3°F), with yearly monthly means from 20.2–21.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: April 21.8°C · June 19.0°C.
Explore Jervis Bay sea temperature in May, including swim comfort and month comparisons →
Jervis Bay in June
Typical June water temperature near Jervis Bay is 19.0°C (66.2°F), with yearly monthly means from 18.7–19.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: May 20.7°C · July 17.4°C.
Explore Jervis Bay sea temperature in June, including swim comfort and month comparisons →
Jervis Bay in July
Typical July water temperature near Jervis Bay is 17.4°C (63.3°F), with yearly monthly means from 17.2–17.6°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: June 19.0°C · August 17.3°C.
Explore Jervis Bay sea temperature in July, including swim comfort and month comparisons →
Jervis Bay in August
Typical August water temperature near Jervis Bay is 17.3°C (63.1°F), with yearly monthly means from 16.6–18.0°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: July 17.4°C · September 17.8°C.
Explore Jervis Bay sea temperature in August, including swim comfort and month comparisons →
Jervis Bay in September
Typical September water temperature near Jervis Bay is 17.8°C (64.0°F), with yearly monthly means from 17.1–18.5°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: August 17.3°C · October 18.8°C.
Explore Jervis Bay sea temperature in September, including swim comfort and month comparisons →
Jervis Bay in October
Typical October water temperature near Jervis Bay is 18.8°C (65.8°F), with yearly monthly means from 18.5–19.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: September 17.8°C · November 19.0°C.
Explore Jervis Bay sea temperature in October, including swim comfort and month comparisons →
Jervis Bay in November
Typical November water temperature near Jervis Bay is 19.0°C (66.2°F), with yearly monthly means from 18.9–19.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: October 18.8°C · December 20.0°C.
Explore Jervis Bay sea temperature in November, including swim comfort and month comparisons →
Jervis Bay in December
Typical December water temperature near Jervis Bay is 20.0°C (68.0°F), with yearly monthly means from 19.0–20.6°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: November 19.0°C · January 21.3°C.
Explore Jervis Bay 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 | 18.7°C / 65.7°F | 19.2°C / 66.6°F | 20.5°C / 68.9°F |
| July | 17.1°C / 62.8°F | 18.0°C / 64.4°F | 18.9°C / 66.0°F |
| August | 17.4°C / 63.3°F | 17.8°C / 64.1°F | 18.6°C / 65.5°F |
| September | 17.2°C / 63.0°F | 18.0°C / 64.3°F | 18.8°C / 65.8°F |
| October | 17.8°C / 64.0°F | 18.7°C / 65.7°F | 19.6°C / 67.3°F |
| November | 18.6°C / 65.5°F | 19.4°C / 67.0°F | 19.9°C / 67.8°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3863 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Jervis Bay
Marine park with white-sand beaches and clear seagrass and reef shallows.
- Area
- New South Wales
Jervis Bay Water Temperature: Common Questions
What is the water temperature in Jervis Bay today?
The current sea surface temperature near Jervis Bay is 19.2°C (66.6°F). Over the last 30 days, the average has been 18.9°C.
When is the water warmest in Jervis Bay?
The water is typically warmest in February, at around 22.7°C (72.9°F) in the 2022–2025 historical baseline.
When is the water coldest in Jervis Bay?
The water is typically coldest in August, at around 17.3°C (63.1°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in Jervis Bay today?
The water is 19.2°C. It may feel cool, but a wetsuit or short swims can help.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Jervis Bay.
View Snorkel Forecast →