Royal National Park Weather in December

Royal National Park in December sees high daytime temperatures of 25°C (77°F) and nighttime lows of 18°C (64°F). Rainfall is fairly high this month at around 64 mm (2.5 in), so pack a rain jacket to stay dry.

Rainfall in Royal National Park in December

Typically around 10 days of rainfall are expected, averaging 64 mm (2.5 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Royal National Park in December

If you're visiting Royal National Park in December, expect perfect temperatures with highs of 25°C (77°F) and overnight lows of 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Royal National Park in December

Enjoy a sunny month with about 257 hours of sunshine, the clear skies make Royal National Park even more beautiful.

Wind Speed in Royal National Park in December

December sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in December

The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, March, April, May, September, October, November and December typically offer the best weather for Royal National Park.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Royal National Park's climate page.

Royal National Park Temperature in December

Min Temperature 18°C (64°F)  

Max Temperature 25°C (77°F)  

Water Temperature 20°C (68°F) *  

Chance of Rain 34%  

Precipitation 64 mm (2.5 in)  

Rainy days 10 days  

Humidity 58% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 257 hours *  

Percentage Sunshine 55% *  

* Data from: Sydney, Australia (17 KM, 10 Miles).

What to Wear in Royal National Park in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. The water temperature sits at about 20°C (68°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Royal National Park in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

10/10

Walking

10/10

Barbeque

8/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Royal National Park's climate page.

More climate data for Royal National Park

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Royal National Park climate overview or explore weather in Australia.