Royal National Park Weather in September

September in Royal National Park brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 12°C (54°F). It's also the driest month of the year, ideal for those who want to avoid rain.

Rainfall in Royal National Park in September

With the least rainfall of the year, this month offers good conditions for outdoor exploration. Take advantage of the dry weather to plan your activities. Historically, September sees about 10 days of rain, with a monthly average of 50 mm (2 in). 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 September

Royal National Park in September is worth a visit. The temperature is perfect, with 20°C (68°F) during the day and 12°C (54°F) at night. Conditions are often most pleasant around the middle of the day. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Royal National Park in September

There are approximately 234 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Royal National Park in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water is 17°C (63°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

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.

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• January
• February
• March
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• May
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• October
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• 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 September

Min Temperature 12°C (54°F)  

Max Temperature 20°C (68°F)  

Water Temperature 17°C (63°F) *  

Chance of Rain 34%  

Precipitation 50 mm (2 in)  

Rainy days 10 days  

Humidity 50% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 234 hours *  

Percentage Sunshine 66% *  

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

What to Wear in Royal National Park in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 17°C (63°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Royal National Park in September

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

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

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.