Horsham weather in December

In December, Horsham sees average daytime highs of 27°C and overnight lows near 12°C, with 37 mm of rain across 4.8 wet days and about 14.5 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 28°C by the end. The sky is clear or mostly clear about 40% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of December to 14 h 30 min by month's end. Set against the rest of the year, December is Horsham's 4th-clearest and 1st-windiest month. For the whole year in context, see Horsham's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
12°
9th coldest
Rainfall
37 mm
4.8 wet days
Daylight
14 h 30 min
6:12 AM – 8:42 PM
Cloud cover
51%
4th clearest
Wind
15 km/h
1st windiest
Solar energy
7.47 kWh/m²
Travel score
7.5
out of 10

Horsham is regional city in Victoria, Australia.

Density
711/km²
people per km²

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 25°C in the first days to 28°C by the end.

A typical December day in Horsham reaches about 27°C in the afternoon and slips back to 12°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 35°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12511
22511
32511
42511
52611
62611
72611
82612
92612
102612
112612
122612
132612
142612
152712
162712
172712
182712
192712
202712
212712
222712
232712
242713
252713
262813
272813
282813
292813
302813
312813

Horsham weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 14°323.814.26.5
Feb28° / 14°223.213.47.0
Mar25° / 12°203.312.38.0
Apr21° / 264.311.17.3
May17° / 376.110.15.6
Jun14° / 447.79.54.0
Jul13° / 428.69.73.6
Aug14° / 448.910.64.1
Sep16° / 478.411.85.3
Oct20° / 376.112.96.7
Nov23° / 10°395.8147.5
Dec27° / 12°374.814.57.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45050
54951
64951
75050
85050
95050
105149
115149
125248
135248
145347
155446
165446
175545
185545
195545
205644
215743
225743
235842
245941
255941
266040
276040
286139
296139
306139
316139

Chance of precipitation in December

Any precipitation

Horsham gets around 37 mm of rain over 4.8 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 15% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
318
418
518
618
717
817
917
1017
1116
1216
1316
1416
1516
1615
1715
1815
1915
2015
2114
2214
2314
2414
2513
2613
2713
2813
2913
3013
3113

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
191720
291720
392620
492620
592620
692620
792620
892620
992620
1092620
1192620
1292620
1391630
1491630
1591630
1691630
1791630
1891630
1990640
2090640
2189641
2289641
2389641
2489641
2589641
2689641
2790631
2890631
2990631
3089731
3189731

Wind in December

Winds average 15 km/h in December, the windiest month of the year.

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

05101520151015202531
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
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 18 min at the start of December to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 6:11 AM to 6:20 AM, and sunset from 8:31 PM to 8:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.36:118:31
214.36:118:32
314.46:118:33
414.46:118:33
514.46:118:34
614.46:118:35
714.46:118:36
814.46:118:37
914.46:118:37
1014.56:118:38
1114.56:118:39
1214.56:118:40
1314.56:128:40
1414.56:128:41
1514.56:128:42
1614.56:128:42
1714.56:138:43
1814.56:138:44
1914.56:138:44
2014.56:148:45
2114.56:148:45
2214.56:158:46
2314.56:158:46
2414.56:168:47
2514.56:168:47
2614.56:178:47
2714.56:178:48
2814.56:188:48
2914.56:198:48
3014.56:198:49
3114.56:208:49

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.47 kWh/m².

For context, solar energy here swings from a low near 1.91 kWh/m² to a high of 7.8 kWh/m² in January across the year — December's 7.47 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.2Intense
47.2Intense
57.2Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.4Intense
137.4Intense
147.4Intense
157.4Intense
167.5Intense
177.5Intense
187.5Intense
197.6Intense
207.6Intense
217.7Intense
227.7Intense
237.8Intense
247.8Intense
257.9Intense
267.9Intense
278.0Intense
288.0Intense
298.0Intense
308.1Intense
318.1Intense
Planning a trip in December

Is December a good time to visit Horsham?

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

7.5
Sightseeing
2nd-best month of the year
7.4
Beach & pool
3rd-best month of the year

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

What to pack for Horsham in December

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

In December, Horsham sees daytime highs around 27°C and nights near 12°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

sun protectionlight clothes

UV index in Horsham in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Horsham peaks around December 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateHighVery highExtremeDec 20UV 13Jun 18UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov10Very high
Dec13Extreme
Location & terrain

Where is Horsham?

Horsham sits at 36.7°S, 142.2°E, 133 m above sea level, in Australia. The nearest listed city is Ballarat, 174 km away.

Bacchus MarshEchucaLaraSunbury

Topography around Horsham

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

Within 3 km, the terrain around Horsham has only modest variations in elevation — a maximum elevation change of 12 m around an average of 129 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 50 m; within 80 km, large variations in elevation — a maximum elevation change of 1,076 m.

The land around Horsham is covered by cropland (46%) and artificial surfaces (36%) within 3 km, cropland (80%) within 16 km, and cropland (55%) and grassland (22%) within 80 km.

3 km
12 m
16 km
50 m
80 km
1,076 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Ballarat 174 km · Mount Gambier 177 km · Bendigo 185 km · Warrnambool 187 km · Bacchus Marsh 225 km · Echuca 237 km · Lara 244 km · Sunbury 244 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 Horsham (-36.7113°, 142.1998°, elevation 133 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. 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).