Busselton weather in December

In December, Busselton sees average daytime highs of 24°C and overnight lows near 15°C, with 11 mm of rain across 2.2 wet days and about 14.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 56% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Busselton's 3rd-clearest and 5th-windiest month. For the whole year in context, see Busselton's year-round climate.

Daytime high
24°
4th warmest
Overnight low
15°
9th coldest
Rainfall
11 mm
2.2 wet days
Daylight
14 h 12 min
5:08 AM – 7:21 PM
Cloud cover
36%
3rd clearest
Wind
18 km/h
5th windiest
Solar energy
7.88 kWh/m²
Travel score
8.5
out of 10

Busselton is city in the South West region of Western Australia.

Air quality
Good
PM2.5 8.1 µg/m³ · 2016
Founded
1832

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 25°C by the end.

A typical December day in Busselton reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52214
62214
72314
82314
92314
102314
112314
122314
132315
142315
152415
162415
172415
182415
192415
202415
212415
222415
232415
242515
252515
262515
272516
282516
292516
302516
312516

Busselton weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°111.4148.7
Feb26° / 17°101.413.38.6
Mar24° / 16°222.912.38.3
Apr21° / 15°294.511.27.5
May19° / 13°829.110.36.2
Jun17° / 12°11312.39.85.0
Jul16° / 11°12514.3104.5
Aug16° / 11°9712.510.84.7
Sep16° / 11°6610.511.85.1
Oct19° / 12°335.812.86.6
Nov21° / 13°274.613.77.5
Dec24° / 15°112.214.28.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46436
56634
66634
76733
86733
96931
106931
116931
127129
137129
147228
157228
167327
177426
187426
197525
207624
217624
227822
237822
247822
257921
267921
277921
287921
298119
308119
318119

Chance of precipitation in December

Any precipitation

Busselton gets around 11 mm of rain over 2.2 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 8% and peaks near 12% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
511
611
711
810
910
1010
119
129
139
148
158
168
178
187
197
206
216
226
235
245
255
264
274
284
293
303
313

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1801820
2801820
3791830
4781930
5781930
6772030
7762130
8752230
9732340
10722440
11712540
12702640
13692740
14682840
15662950
16653050
17643150
18633250
19633250
20623350
21613360
22603460
23603460
24593461
25583471
26583471
27573571
28563581
29563581
30553681
31543691

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 06 min at the start of December to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:06 AM to 5:16 AM, and sunset from 7:11 PM to 7:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:067:11
214.15:067:11
314.15:067:12
414.15:067:13
514.15:067:14
614.15:067:15
714.25:067:15
814.25:067:16
914.25:067:17
1014.25:077:18
1114.25:077:18
1214.25:077:19
1314.25:077:20
1414.25:077:20
1514.25:087:21
1614.25:087:21
1714.25:087:22
1814.25:097:23
1914.25:097:23
2014.25:107:24
2114.25:107:24
2214.25:107:25
2314.25:117:25
2414.25:117:26
2514.25:127:26
2614.25:137:26
2714.25:137:27
2814.25:147:27
2914.25:147:27
3014.25:157:28
3114.25:167:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.88 kWh/m².

For context, solar energy here swings from a low near 2.19 kWh/m² to a high of 8.03 kWh/m² in January across the year — December's 7.88 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.6Intense
57.6Intense
67.6Intense
77.6Intense
87.7Intense
97.7Intense
107.7Intense
117.8Intense
127.8Intense
137.8Intense
147.8Intense
157.9Intense
167.9Intense
177.9Intense
188.0Intense
198.0Intense
208.0Intense
218.1Intense
228.1Intense
238.1Intense
248.2Intense
258.2Intense
268.2Intense
278.2Intense
288.2Intense
298.3Intense
308.3Intense
318.3Intense
Planning a trip in December

Hazard calendar for Busselton

In seasonPeak

In December, Busselton sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

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

Busselton's rainy season runs May–September, when most of the year's rain falls.

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

Is December a good time to visit Busselton?

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

8.5
Sightseeing
3rd-best month of the year
6.9
Beach & pool
4th-best month of the year

December is one of the better times to visit Busselton for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Busselton in December

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

In December, Busselton sees daytime highs around 24°C and nights near 15°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Busselton in December

The nearest coast averages about 20°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 21°C and coldest in September near 17°C.

It's comfortable for a long swim from Dec 14 to May 18 — about 5.1 months when the water holds above 20°C.

16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar21Refreshing
Apr21Refreshing
May20Refreshing
Jun19Cool
Jul18Cool
Aug17Cool
Sep17Cool
Oct18Cool
Nov19Cool
Dec20Refreshing

UV index in Busselton in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Busselton peaks around January 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateVery highExtremeJan 12UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Extreme
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep7Very high
Oct8Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Busselton?

Busselton sits at 33.7°S, 115.3°E, 7 m above sea level, in Australia. The nearest listed city is Margaret River, 42 km away.

Topography around Busselton

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

Within 3 km, the terrain around Busselton has only modest variations in elevation — a maximum elevation change of 16 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 165 m; within 80 km, significant variations in elevation — a maximum elevation change of 376 m.

The land around Busselton is covered by water (37%), grassland (27%) and artificial surfaces (22%) within 3 km, water (41%) and grassland (36%) within 16 km, and trees (43%) and water (39%) within 80 km.

3 km
16 m
16 km
165 m
80 km
376 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Margaret River 42 km · Bunbury 45 km · Australind 54 km · Mandurah 130 km · Baldivis 154 km · Rockingham 157 km · Kwinana 163 km · Byford 171 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 Busselton (-33.6525°, 115.3455°, elevation 7 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).