SeasonMapHervey Bay weather in September
Australia
September in Hervey Bay: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in Hervey Bay · #130 of 1383 destinations to visit in September · comfort 92/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hervey Bay in September
Other months in Hervey Bay
Hervey Bay's forum is clear that January is the wrong month for the whale watching the town is famous for — the season doesn't open until later, running roughly July through November, so January visitors go home without a sighting. It's still hot, humid and good for swimming, though regulars warn to expect tropical downpours; Mon Repos, further along the coast, is flagged as worth the detour for nesting turtles instead.
Add your own note from Hervey Bay's card on the map.
Hervey Bay climate normals — September
| Daytime high | 25°C / 78°F | 🌤 warm |
|---|---|---|
| Nighttime low | 14°C / 56°F | |
| Feels like (high) | 26°C / 79°F | |
| Sea temperature | 22°C / 72°F | 🙂 pleasant |
| Rainfall | 22 mm / 0.9 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 14°C / 56°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 11.9 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hervey Bay in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySpring break in Australia, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Hervey Bay's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherHervey Bay's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Hervey Bay in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Humpbacks in the bay
5 Jul – 25 Oct · usuallyWhale seasonBook earlyHumpbacks break their southern run in the flat water behind K'gari, mothers and calves resting for days at a time. The boats are back at Urangan by mid-afternoon and rarely miss.
Nearby, and something's on
Within 300 km of Hervey Bay — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Hervey Bay?
Hervey Bay in September — FAQ
- Is September a good time to visit Hervey Bay?
- September in Hervey Bay: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Hervey Bay on SeasonMap's comfort score (92/100).
- What is the weather like in Hervey Bay in September?
- In September, Hervey Bay averages a daily high of 25.3°C and a low of 13.5°C, with about 21.6 mm of rain over roughly 2.2 rainy days.
- What is the air quality in Hervey Bay in September?
- Hervey Bay has a mean US Air Quality Index of about 34 in September.
Other months in Hervey Bay
Compare Hervey Bay in September
Warmer or cooler than Hervey Bay in September
Similar destinations in Oceania — September
Within 300 km: Brisbane's Humpbacks in Moreton Bay around 1 Jun – 5 Nov.