Seaford weather in December

In December, Seaford sees average daytime highs of 24°C and overnight lows near 13°C, with 62 mm of rain across 8.4 wet days and about 14.6 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 28% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of December to 14 h 36 min by month's end. Set against the rest of the year, December is Seaford's 4th-clearest and 5th-windiest month. For the whole year in context, see Seaford's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
13°
9th coldest
Rainfall
62 mm
8.4 wet days
Daylight
14 h 36 min
5:57 AM – 8:35 PM
Cloud cover
60%
4th clearest
Wind
12 km/h
5th windiest
Solar energy
7.02 kWh/m²
Travel score
7.1
out of 10

Seaford is suburb of Melbourne, Victoria, 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 23°C in the first days to 25°C by the end.

A typical December day in Seaford reaches about 24°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 32°C. Set against its neighbours, December runs about 2°C warmer than November and about 2°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12312
22312
32312
42312
52312
62312
72312
82312
92312
102312
112312
122312
132412
142412
152412
162412
172413
182413
192413
202413
212413
222413
232413
242413
252413
262413
272513
282513
292513
302513
312514

Seaford weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°496.214.37.4
Feb26° / 15°445.813.57.4
Mar24° / 13°386.412.37.5
Apr20° / 11°517.9116.5
May16° / 5310.2105.1
Jun14° / 5711.19.43.8
Jul13° / 5411.89.63.5
Aug14° / 651310.53.9
Sep17° / 711311.74.8
Oct19° / 6811.5135.8
Nov22° / 11°649.814.16.5
Dec24° / 13°628.414.67.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34357
44357
54357
64357
74357
84258
94357
104456
114456
124357
134357
144357
154258
164258
174258
184258
194258
204258
214258
224456
234456
244555
254456
264555
274654
284654
294753
304852
314852

Chance of precipitation in December

Any precipitation

Seaford gets around 62 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 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
630
730
830
929
1029
1129
1228
1328
1428
1528
1627
1727
1827
1927
2026
2126
2225
2325
2425
2524
2624
2724
2823
2923
3023
3123

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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1821350
2821350
3821350
4821350
5821350
6821350
7821350
8821350
9821350
10811450
11811450
12801460
13791560
14791560
15781660
16781660
17781660
18781660
19761770
20761770
21761770
22761770
23751870
24761860
25741961
26732061
27732061
28722161
29712261
30712261
31702361

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 30 min at the start of December to 14 h 36 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 5:56 AM to 6:04 AM, and sunset from 8:23 PM to 8:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:568:23
214.55:558:24
314.55:558:25
414.55:558:26
514.55:558:26
614.55:558:27
714.55:558:28
814.65:558:29
914.65:558:30
1014.65:558:30
1114.65:568:31
1214.65:568:32
1314.65:568:33
1414.65:568:33
1514.65:568:34
1614.65:578:35
1714.65:578:35
1814.65:578:36
1914.65:588:36
2014.65:588:37
2114.65:588:37
2214.65:598:38
2314.65:598:38
2414.66:008:39
2514.66:008:39
2614.66:018:40
2714.66:028:40
2814.66:028:40
2914.66:038:41
3014.66:048:41
3114.66:048:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.02 kWh/m².

For context, solar energy here swings from a low near 1.81 kWh/m² to a high of 7.24 kWh/m² in January across the year — December's 7.02 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.2Intense
217.2Intense
227.2Intense
237.2Intense
247.3Intense
257.3Intense
267.3Intense
277.4Intense
287.4Intense
297.4Intense
307.5Intense
317.5Intense
Planning a trip in December

Is December a good time to visit Seaford?

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

7.1
Sightseeing
4th-best month of the year
5.9
Beach & pool
4th-best month of the year

December is one of the better times to visit Seaford for general sightseeing.

What to pack for Seaford in December

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

In December, Seaford sees daytime highs around 24°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Seaford in December

The nearest coast averages about 18°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 February at about 21°C and coldest in August near 11°C.

It's comfortable for a long swim from Jan 18 to Mar 11 — about 1.7 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb21Refreshing
Mar20Cool
Apr18Cool
May15Cool
Jun13Bracing
Jul12Bracing
Aug11Bracing
Sep12Bracing
Oct14Bracing
Nov17Cool
Dec18Cool

UV index in Seaford 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 Seaford peaks around December 19 at about 12 (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 highModerateLowModerateVery highExtremeDec 19UV 12Jun 18UV 2
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar8Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep4Moderate
Oct7Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Seaford?

Seaford sits at 38.1°S, 145.1°E, 7 m above sea level, in Australia. The nearest listed city is Carrum Downs, 3.0 km away.

Topography around Seaford

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

Within 3 km, the terrain around Seaford has only modest variations in elevation — a maximum elevation change of 26 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 162 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,302 m.

The land around Seaford is covered by artificial surfaces (35%) and water (34%) within 3 km, water (36%), artificial surfaces (23%) and grassland (20%) within 16 km, and water (32%), grassland (30%) and trees (24%) within 80 km.

3 km
26 m
16 km
162 m
80 km
1,302 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Carrum Downs 3.0 km · Frankston East 4.0 km · Frankston 5.0 km · Frankston South 7.0 km · Langwarrin 8.0 km · Mount Eliza 10 km · Cranbourne West 12 km · Keysborough 13 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 Seaford (-38.1°, 145.1333°, 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. 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).