Hervey Bay weather in September

In September, Hervey Bay sees average daytime highs of 22°C and overnight lows near 17°C, with 28 mm of rain across 3.9 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 72% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Hervey Bay's 1st-clearest and 8th-windiest month. For the whole year in context, see Hervey Bay's year-round climate.

Daytime high
22°
9th warmest
Overnight low
17°
4th coldest
Rainfall
28 mm
3.9 wet days
Daylight
11 h 54 min
5:48 AM – 5:39 PM
Cloud cover
28%
1st clearest
Wind
16 km/h
8th windiest
Solar energy
5.5 kWh/m²
Travel score
8.2
out of 10

Hervey Bay is city in Queensland, Australia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical September day in Hervey Bay reaches about 22°C in the afternoon and slips back to 17°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12116
22116
32116
42116
52116
62216
72216
82217
92217
102217
112217
122217
132217
142217
152217
162217
172217
182217
192217
202218
212218
222318
232318
242318
252318
262318
272318
282318
292318
302318

Hervey Bay weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°10511.413.46.4
Feb27° / 24°1341212.96.1
Mar27° / 23°9510.212.26.7
Apr25° / 20°527.911.47.5
May23° / 18°577.210.87.5
Jun21° / 15°535.410.57.5
Jul20° / 14°303.910.67.7
Aug21° / 15°333.511.17.9
Sep22° / 17°283.911.88.2
Oct24° / 19°626.312.67.9
Nov25° / 21°487.213.27.5
Dec26° / 23°938.913.56.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28317
38317
48317
58515
68515
78515
88614
98614
108614
118713
128812
138812
148911
158911
168911
178911
188812
198812
208812
218812
228812
238713
248614
258614
268614
278614
288515
298515
308515

Chance of precipitation in September

Any precipitation

Hervey Bay gets around 28 mm of rain over 3.9 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 16% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
216
316
415
515
615
714
814
914
1013
1113
1213
1313
1413
1513
1612
1712
1812
1912
2012
2112
2212
2312
2412
2512
2612
2713
2813
2913
3013

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the comfortable band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13836233
23737233
33637243
43638243
53638243
63538243
73538243
83538244
93438244
103438245
113338245
123238246
133138246
143038257
152938258
162838269
172737279
1825372710
1924362811
2023362912
2122353013
2221353014
2320343115
2419343116
2518343217
2617333218
2716333218
2816333319
2915333319
3015323320

Wind in September

Winds average 16 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 6:04 AM to 5:32 AM, and sunset from 5:33 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:045:33
211.56:035:33
311.56:025:34
411.66:015:34
511.66:005:35
611.65:595:35
711.65:585:35
811.75:575:36
911.75:565:36
1011.75:545:37
1111.75:535:37
1211.85:525:37
1311.85:515:38
1411.85:505:38
1511.85:495:38
1611.95:485:39
1711.95:465:39
1811.95:455:40
1911.95:445:40
2012.05:435:40
2112.05:425:41
2212.05:415:41
2312.05:405:42
2412.15:395:42
2512.15:375:42
2612.15:365:43
2712.15:355:43
2812.25:345:44
2912.25:335:44
3012.25:325:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.5 kWh/m².

For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 6.63 kWh/m² in December across the year — September's 5.5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
306.0Bright
Planning a trip in September

Hazard calendar for Hervey Bay

In seasonPeak

None of Hervey Bay's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Hervey Bay sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Hervey Bay's rainy season runs December–March, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Hervey Bay?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.2
Sightseeing
1st-best month of the year
5.7
Beach & pool
8th-best month of the year

September is one of the better times to visit Hervey Bay for general sightseeing.

What to pack for Hervey Bay in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Hervey Bay sees daytime highs around 22°C and nights near 17°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Hervey Bay in September

The nearest coast averages about 21°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in February at about 27°C and coldest in July near 20°C.

It's comfortable for a long swim from Aug 23 to Jul 6 — about 10.5 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr25Warm
May23Refreshing
Jun21Refreshing
Jul20Cool
Aug20Cool
Sep21Refreshing
Oct23Refreshing
Nov25Warm
Dec26Warm

UV index in Hervey Bay in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hervey Bay peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeFeb 10UV 14Jun 19UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5High
Aug7High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme
Location & terrain

Where is Hervey Bay?

Hervey Bay sits at 25.3°S, 152.8°E, 9 m above sea level, in Australia. The nearest listed city is Maryborough, 29 km away.

Topography around Hervey Bay

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hervey Bay.

Within 3 km, the terrain around Hervey Bay has only modest variations in elevation — a maximum elevation change of 69 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, large variations in elevation — a maximum elevation change of 665 m.

The land around Hervey Bay is covered by grassland (43%) and trees (34%) within 3 km, water (41%) and trees (36%) within 16 km, and water (44%) and trees (39%) within 80 km.

3 km
69 m
16 km
92 m
80 km
665 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Maryborough 29 km · Bundaberg 63 km · Gympie 101 km · Noosa 127 km · Sunshine Coast 155 km · Maroochydore 156 km · Buderim 158 km · Caloundra 172 km

Australia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$65,130
2025
Happiness
6.9 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
Religion
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hervey Bay (-25.2876°, 152.7694°, elevation 9 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).