30YearWeather
Adelaide in December
Adelaide weather in December - Australia
😊Warm & Pleasant

Adelaide Weather in December

Plan your December trip to Adelaide, Australia. Based on 30 years of NASA data, expect temperatures of 26°C (high) to 15°C (low), with 8% rain probability and 8 hours of daily sunshine. The Gulf St Vincent averages 21°C in December. Great conditions with only 0 rainy days expected.

Avg High
26°C

Hottest around day 29

Avg Low
15°C

Coolest around day 2

Rainy Days
0days

8% avg rain chance

Sunshine
8hrs/day

Winter season

Sea Temperature in December

Gulf St Vincent

21.1°C

Monthly Average

Water Feel
🏊Pleasant

Comfortable for most swimmers

Swim Rating
👍Good for swimming

Based on average sea surface temperature

Body of Water
Gulf St Vincent

Adelaide coastline

Adelaide December Weather Calendar

Click any day to see detailed weather information

Day 1
partly-cloudy-day
Nice
24°C14%
Day 2
partly-cloudy-day
Nice
24°C11%
Day 3
partly-cloudy-day
Nice
24°C11%
Day 4
partly-cloudy-day
Nice
24°C8%
Day 5
partly-cloudy-day
Nice
25°C8%
Day 6
partly-cloudy-day
Nice
25°C8%
Day 7
partly-cloudy-day
Nice
25°C12%
Day 8
partly-cloudy-day
Nice
25°C12%
Day 9
partly-cloudy-day
Nice
24°C13%
Day 10
partly-cloudy-day
Nice
25°C15%
Day 11
partly-cloudy-day
Nice
25°C15%
Day 12
partly-cloudy-day
Nice
25°C13%
Day 13
partly-cloudy-day
Nice
25°C12%
Day 14
clear-day
Sunny
26°C10%
Day 15
clear-day
Sunny
26°C7%
Day 16
clear-day
Sunny
26°C6%
Day 17
clear-day
Sunny
27°C7%
Day 18
clear-day
Sunny
27°C6%
Day 19
clear-day
Sunny
27°C7%
Day 20
clear-day
Sunny
26°C8%
Day 21
clear-day
Sunny
26°C8%
Day 22
clear-day
Sunny
26°C5%
Day 23
partly-cloudy-day
Nice
25°C5%
Day 24
clear-day
Sunny
26°C4%
Day 25
clear-day
Sunny
26°C1%
Day 26
clear-day
Sunny
27°C2%
Day 27
clear-day
Sunny
27°C5%
Day 28
clear-day
Sunny
27°C5%
Day 29
clear-day
Sunny
27°C7%
Day 30
clear-day
Sunny
27°C8%
Day 31
clear-day
Sunny
27°C6%

Essential Travel Info for Adelaide

🗓️ Best Time to Visit📖 Travel Guide🍴 Food Guide

Currency

AUD

$ Australian dollar

Language

English

Driving

Left side

Connect

There is extensive free Wi-Fi access (po...

Safety

High Safety

GPI: 1.565

Travel Intelligence

Exclusive flight analytics & health data for Adelaide

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
44/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Dec

Low

Nov

Monthly Traffic Distribution

115
Jan
105
Feb
104
Mar
116
Apr
125
May
102
Jun
130
Jul
134
Aug
133
Sep
129
Oct
97
Nov
145
Dec
Traffic Level
Low Season

Key Connections

Melbourne (MEL)
Sydney Kingsford Smith (SYD)
Brisbane City Brisbane (BNE)
Port Lincoln (PLO)
Perth International (PER)

Health & Safety Advisory

CDC travel health recommendations

6 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Australia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Australia.

Japanese Encephalitis

Japanese encephalitis is mainly a concern in the Murray River, and the Outer Torres Strait Islands area.Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or traveling at times outside of the Japanese encephalitis season.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Australia.If rabies exposures occur while in Australia, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Yellow Fever

CDC recommendations:Vaccine isnotrecommended.Country entry requirements:Direct travel from United States: Vaccine isnotrequired.Travel from countries with risk for YF virus transmission: Vaccine isrequiredfor travelers ≥1 year old; this includes >12-hour airport transits or layovers in countries with risk for YF virus transmission.3Updated April 23, 2025See footnotes

Source: CDC Travelers' Health

View Complete Health Guide

Is December a Good Time to Visit Adelaide?

👍Solid choice for most travelers
Short Answer

Ideal beach conditions in Adelaide during December: 21.1°C turquoise waters, 26°C air, 8% rain. 0.7m calm waves suit families and swimmers alike.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

100% of annual peak - expect crowds and peak prices

Ideal temperature range

25.6°C - perfect for sightseeing and outdoor activities

Excellent dry conditions

Only 8% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Dengue

Comfortable humidity levels

55% humidity - pleasant conditions

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 25.6°C temperatures and low 8% rain risk

  • 👴
    Elderly travelers

    Comfortable 25.6°C temperature range with manageable humidity

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 25.6°C, 8% rain chance

  • 📸
    Photographers

    12.2h sunshine, 58% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

Related Guides

Best Time to VisitWhen to AvoidAdelaide Overview
930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Adelaide in December averages 26°C with 8% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Adelaide in December

What are the temperatures in Adelaide in December?

Daytime highs average 26°C, nights drop to 15°C. Temperatures remain fairly consistent.

How many rainy days in Adelaide in December?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Adelaide in December?

Comfortable casual wear with a light jacket for evenings.

Is December peak season in Adelaide?

This is typically peak season with higher prices. Book 2-3 months ahead.