Goulburn weather in December

In December, Goulburn sees average daytime highs of 25°C and overnight lows near 12°C, with 65 mm of rain across 8.4 wet days and about 14.3 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 37% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of December to 14 h 18 min by month's end. Set against the rest of the year, December is Goulburn's 7th-clearest and 7th-windiest month. For the whole year in context, see Goulburn's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
12°
10th coldest
Rainfall
65 mm
8.4 wet days
Daylight
14 h 18 min
5:48 AM – 8:07 PM
Cloud cover
53%
7th clearest
Wind
13 km/h
7th windiest
Solar energy
7.01 kWh/m²
Travel score
7.2
out of 10

Goulburn is city in New South Wales, Australia.

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 24°C in the first days to 26°C by the end.

A typical December day in Goulburn reaches about 25°C in the afternoon and slips back to 12°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 31°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12311
22411
32411
42411
52411
62411
72412
82412
92412
102412
112412
122412
132412
142412
152412
162412
172512
182512
192512
202513
212513
222513
232513
242513
252513
262513
272513
282613
292613
302613
312613

How December really feels in Goulburn

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Goulburn weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°628.514.16.9
Feb25° / 14°688.613.37.0
Mar23° / 12°507.412.37.3
Apr19° / 324.711.27.0
May15° / 304.910.25.3
Jun12° / 506.89.73.4
Jul11° / 366.69.93.1
Aug13° / 457.210.73.8
Sep16° / 477.611.85.4
Oct19° / 588.112.96.5
Nov22° / 10°679.313.86.7
Dec25° / 12°658.414.37.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 47%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35248
45248
55149
65149
75149
85149
95050
105149
115149
125149
135149
145149
155149
165248
175248
185248
195347
205347
215347
225446
235545
245545
255644
265644
275644
285644
295644
305644
315545

Chance of precipitation in December

Any precipitation

Goulburn gets around 65 mm of rain over 8.4 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 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
429
529
629
729
828
928
1028
1128
1227
1327
1427
1527
1627
1728
1828
1928
2027
2127
2227
2327
2426
2526
2626
2726
2826
2926
3026
3126

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
179174
278184
378184
478184
577185
677185
777185
877185
976195
1076195
1176195
1276195
1376195
1474206
1574206
1674206
1774206
1873216
1973216
2073216
2173216
2272226
2371227
2471227
2570237
2670237
2769247
2869247
2968257
3066268
3165278

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 12 min at the start of December to 14 h 18 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 5:46 AM to 5:55 AM, and sunset from 7:56 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:467:56
214.25:467:57
314.25:467:57
414.25:467:58
514.25:467:59
614.25:468:00
714.25:468:01
814.35:468:01
914.35:468:02
1014.35:468:03
1114.35:468:04
1214.35:478:04
1314.35:478:05
1414.35:478:06
1514.35:478:06
1614.35:488:07
1714.35:488:07
1814.35:488:08
1914.35:498:09
2014.35:498:09
2114.35:508:10
2214.35:508:10
2314.35:518:11
2414.35:518:11
2514.35:528:11
2614.35:528:12
2714.35:538:12
2814.35:538:12
2914.35:548:13
3014.35:558:13
3114.35:558:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.01 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 7.01 kWh/m² in December across the year — December's 7.01 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
207.1Intense
217.1Intense
227.2Intense
237.2Intense
247.2Intense
257.3Intense
267.3Intense
277.3Intense
287.4Intense
297.4Intense
307.4Intense
317.4Intense
Planning a trip in December

Is December a good time to visit Goulburn?

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

7.2
Sightseeing
2nd-best month of the year
6.3
Beach & pool
3rd-best month of the year

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

What to pack for Goulburn in December

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

In December, Goulburn sees daytime highs around 25°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

UV index in Goulburn 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 Goulburn peaks around December 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeDec 23UV 13Jun 19UV 2
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr6High
May4Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep5High
Oct9Very high
Nov10Extreme
Dec13Extreme

Air quality in Goulburn in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Goulburn is worst in December — around 33 µg/m³ PM2.5 (moderate), about 7.0× the cleanest month (July, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1831 µg/m³Jul 205 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb7Good
Mar7Good
Apr10Good
May12Moderate
Jun8Good
Jul5Good
Aug6Good
Sep7Good
Oct7Good
Nov8Good
Dec33Moderate
Location & terrain

Where is Goulburn?

Goulburn sits at 34.8°S, 149.7°E, 642 m above sea level, in Australia. The nearest listed city is Canberra, 80 km away.

Topography around Goulburn

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

Within 3 km, the terrain around Goulburn has only modest variations in elevation — a maximum elevation change of 200 m around an average of 657 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,267 m.

The land around Goulburn is covered by grassland (41%), artificial surfaces (34%) and trees (24%) within 3 km, grassland (62%) and trees (32%) within 16 km, and grassland (50%) and trees (48%) within 80 km.

3 km
200 m
16 km
318 m
80 km
1,267 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Canberra 80 km · Tuggeranong 95 km · Wollongong city centre 113 km · Wollongong 113 km · Batemans Bay 114 km · Katoomba 127 km · Blue Mountains 128 km · Glenmore Park 138 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 Goulburn (-34.7516°, 149.7209°, elevation 642 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).