September weather forecast and climate
Christmas Island, Christmas Island

Bluewater waves hitting the rocky coast of Christmas Island, in Australia with mountains in the side view
Bluewater waves hitting the rocky coast of Christmas Island, in Australia with mountains in the side view

What is the temperature in September in Christmas Island?

In September, the average high-temperature is 27.2°C (81°F), and the average low-temperature is 23.2°C (73.8°F).

How many days does it rain in September in Christmas Island?

In Christmas Island, Christmas Island, during September, the rain falls for 8 days and regularly aggregates up to 47mm (1.9") of precipitation.

When is the sea coldest in Christmas Island?

With an average sea temperature of 26°C (78.8°F), September is the month with the coldest seawater. For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the sea water temperature in September in Christmas Island?

In September, in Christmas Island, the average sea temperature is 26°C (78.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Average temperature in September - Christmas Island, Christmas Island
  • Average high temperature in September: 27.2°C

Warmest months (with the highest average high temperature) are March and April (29.2°C).
The month with the lowest average high temperature is August (27°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is May (24.8°C).
Coldest months (with the lowest average low temperature) are August and September (23.2°C).

Average rainfall in September - Christmas Island, Christmas Island
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is February (348.4mm).
The driest month (with the lowest rainfall) is August (43.1mm).

Average rainfall days in September - Christmas Island, Christmas Island
  • Average rainfall days in September: 8 days

The month with the highest number of rainy days is March (22 days).
The month with the lowest number of rainy days is September (8 days).

Average sea temperature in September - Christmas Island, Christmas Island
  • Average sea temperature in September: 26°C

Best months for swimming (with the highest average sea temperature) are February, March, April and May (29°C).
The coldest month (with the lowest average sea temperature) is September (26°C).

Average daylight in September / Average sunshine in September - Christmas Island, Christmas Island
  • Average daylight in September: 12h

Months with the longest days are January and December (Average daylight: 12.7h).
The month with shortest days is June (Average daylight: 11.5h).

  • Average sunshine in September: 8h

The month with most sunshine is March (Average sunshine: 22h).
The month with least sunshine is September (Average sunshine: 8h).

Average UV index in September - Christmas Island, Christmas Island
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 9).

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