Month-specific sea-surface temperature · Australia
Low Isles Sea Temperature in January
30.5°C
86.9°F
In January, sea-surface temperature near Low Isles has a historical monthly average of 30.5°C. This is not the reading for any particular holiday date.
Across 2023–2025, the lowest and highest yearly January monthly means were 29.8–31.0°C. These are not daily extremes.
Previous month
December · 29.5°C
Change into January: +1.0°C
Next month
February · 30.0°C
Change into next month: -0.5°C
Can you swim or snorkel in Low Isles in January?
At 30.5°C our temperature-only guide describes the water as very warm water. Comfort depends on your cold tolerance, immersion time and wind. A historical average cannot determine whether conditions are safe on any given day.
Do you need a wetsuit?
Swimwear is usually enough; a rash guard adds sun protection.
Which beach should you choose?
Look for a beach sheltered from the actual forecast waves and wind on your visit. Exposure, currents and entry conditions vary even where water temperatures are similar. Follow local warnings.
Check the current waves, wind and snorkeling forecast →
A live forecast does not predict a future January. Check again close to your trip.
Waves and wind: recorded-model conditions for January
These figures come from a separately modelled, date-specific wind/wave backfill, not the NOAA SST series. A single observed season is not a climatological likelihood or a guarantee of safe conditions.
Compare nearby coasts with their own evidence
| Coast | Morning | Afternoon | Period |
|---|---|---|---|
| Great Barrier Reef | 75% | 62% | Jan 2026 |
A “calm hour” meets fixed modelled wave/wind thresholds; neither visibility nor local currents, entry conditions or actual beach safety is measured here. Periods may differ by coast.
Nearby places in January
Comparable historical averages from independent marine grid cells. Warmer water does not imply safe snorkeling.
- Port Douglas 30.6°C
- Great Barrier Reef 29.9°C
- Michaelmas Cay 29.6°C
- Agincourt Reef 29.9°C
- Hastings Reef 29.8°C
- Green Island 29.7°C
Data source and limitations
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature; 2023–2025. Marine model grid near -16.39, 145.56. Based on 3 yearly monthly means and 2166 recorded samples. Source methodology.
Modelled sea-surface temperatures do not establish underwater visibility, wildlife, calm currents or safe entry.