ClimateForecastDecemberJanuary >>

Royal National Park Climate by Month

The temperature in Royal National Park varies moderately throughout the year. The temperatures shift from warm to mild. It receives a moderate amount of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

In Royal National Park, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a comfortable 26°C in January to a moderate 18°C in July. Nighttime temperatures can drop, with averages reaching 10°C in July.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Generally, Royal National Park has a moderate amount of precipitation, averaging 862 mm of rainfall annually. The seasons in Royal National Park, bring significant changes in precipitation. The wettest month, February, receives high rainfall, with an average of 110 mm of precipitation. This rainfall is distributed across 12 rainy days.

In contrast, the driest month, September, experiences much less rainfall, totaling 50 mm over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Royal National Park enjoys sunny spells year-round. December sees up to 8.6 hours of daily sunshine, perfect for a sunny trip. May, the least sunny month, still offers a generous 6.0 hours of sun despite this cloudier time of the year.

Monthly hours of sunshine

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

Daily hours of sunshine

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

Average water temperature

The mean water temperature over the year in Royal National Park ranges from 16°C in August to 21°C in January.

Water temperature over the year

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

The best time of year to visit Royal National Park in Australia

During the months of March, April, May, September, October, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Royal National Park?
    The hottest season / summer takes place in January, February, March and December.
  • Which is the warmest month in Royal National Park?
    January has an average maximum temperature of 26°C and is the warmest month of the year.
  • Which is the coldest month in Royal National Park?
    The coldest month is July with an average maximum temperature of 18°C.
  • Which is the wettest month in Royal National Park?
    February tops the wettest month list with 110 mm of rainfall.
  • Which is the driest month in Royal National Park?
    September is the driest month with 50 mm of precipitation.
  • Which is the sunniest month in Royal National Park?
    December is the sunniest month with an average of 257 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Royal National Park

    Sun   Dec 15
    29°C | 20°C
    SE 18 km/h
    almost clear and no rain

    almost clear and no rain

    Mon   Dec 16
    29°C | 21°C
    NE 22 km/h
    0.2 mm
    partly cloudy and small chance of slight rain

    partly cloudy and small chance of slight rain

    Tue   Dec 17
    34°C | 19°C
    NE 18 km/h
    almost clear and no rain

    almost clear and no rain