Yearly & Monthly weather - Christmas Island, Christmas Island

Bluewater waves hitting the rocky coast of Christmas Island, in Australia

The climate of Christmas Island

Located in the tropical equatorial region, Christmas Island is classified under the Köppen climate classification as having a Tropical Rainforest Climate, denoted as 'Af'. This climate type is typically characterized by consistent temperatures throughout the year, paired with a significant amount of rainfall. The geographical position of the Island contributes to maintaining relatively stable monthly temperatures, wherein variations remain minimal throughout the year. One notable feature of the Island's climate is the nearly consistent high Sea temperatures, from 26°C (78.8°F) to 29°C (84.2°F), ensuring a warm coastal environment all year round.

An analysis of the provided climatic parameters reveals a consistent pattern in temperature and rainfall. High temperatures range from 27°C (80.6°F) to 29.2°C (84.6°F) on average, while low temperatures vary between 23.2°C (73.8°F) to 24.8°C (76.6°F). Rainfall is ample throughout the year, peaking in February with a substantial 348mm (13.7"). The rainiest period extends from January to March, with 291mm (11.46") to 348mm (13.7") of rain. Overall, the year is widely divided between a wet and a drier season.

The Island’s daylight hours slightly vary throughout the year, with a minimum of 11.5 hours in June to a maximum of 12.7 hours in January and December. Sunshine duration, however, fluctuates significantly from 8 hours in September to a maximum of 22 hours in March.

The best time to visit Christmas Island

Considering the climate patterns, the ideal period to visit Christmas Island would primarily depend on the visitors' tolerance to rainfall. However, the months from July to September can be considered the best time to plan a trip. These months are relatively drier, with rainfall ranging from 43mm (1.69") to 97mm (3.82"). Also, the average temperatures remain inviting with highs between 27°C (80.6°F) to 27.8°C (82°F) and lows from 23.2°C (73.8°F) to 23.5°C (74.3°F). Visitors can enjoy longer sunlight hours, with approximately 11.6 to 12 hours of daylight.

The worst time to visit Christmas Island

The period from January to March presents the most challenging weather conditions for visitors. These months witness the highest rainfall, ranging from 291mm (11.46") to 348mm (13.7"). Despite these high rainfall values, the temperatures remain consistently high, with the upper limit from 28.9°C (84°F) to 29.2°C (84.6°F) and the lower limit between 23.6°C (74.5°F) and 24.5°C (76.1°F). The moisture-laden environment during this period might not be comfortable for everyone.

Spring weather in Christmas Island

On Christmas Island, the spring months of March through May offer changing weather conditions. March still experiences high rainfall, averaging 291mm (11.46"), gradually decreasing to 222mm (8.74") in April and reaching 177mm (6.97") by May. Temperatures during this period remain high, with an average ranging from 28.8°C (83.8°F) to 29.2°C (84.6°F) and lows between 24°C (75.2°F) and 24.8°C (76.6°F). Daylight hours reduce slightly from 12.2 hours in March to 11.6 hours in May, while the sunshine duration decreases significantly from 22 hours in March to 13 hours by May.

Summer weather in Christmas Island

The months from June to August, representing the summer season on the Island, exhibit decreased rainfall and relatively lower temperatures. The rainfall drops from 156mm (6.14") in June to a yearly low of 43mm (1.69") in August. Correspondingly, the high temperature ranges from 28°C (82.4°F) to 27°C (80.6°F), while the low fluctuates between 24.2°C (75.6°F) and 23.2°C (73.8°F). These months favor outdoor activities due to the reduced rainfall and moderate temperature range.

Autumn weather in Christmas Island

In the autumn months of September to November, the Island witnesses a slow rise in rainfall from a moderate 47mm (1.85") in September to a higher 148mm (5.83") in November. High temperatures start increasing from 27.2°C (81°F) in September to 28.2°C (82.8°F) by November, while the low temperatures hover between 23.2°C (73.8°F) to 23.8°C (74.8°F). The daylight hours gradually increase from 12 hours in September to 12.6 hours in November.

Winter weather in Christmas Island

The winter season, from December to February, brings the highest rainfall of the year to the Island. December starts with an average rainfall of 211mm (8.31"), climbing to the yearly ultimate of 348mm (13.7") in February. Despite the high rainfall, temperatures remain on the warmer side with highs of 28.7°C (83.7°F) to 28.9°C (84°F) and lows from 23.5°C (74.3°F) to 23.6°C (74.5°F). Simultaneously, daylight hours reach a maximum of 12.7 hours in December and January, offering ample daylight despite the prevalent wet conditions.

Weather in January

January weather in Christmas Island ushers in the new year with some distinct features. The tropical setting delivers a high temperature of 28.9°C (84°F), making the coasts inviting despite the relatively high amount of rainfall. Weather in January »

Weather in February

In February, Christmas Island experiences weather similar to January with minor shifts in the climatic pattern. The temperature continues its tropical trend, but residents and visitors must contend with the highest rainfall of the year. Weather in February »

Weather in March

Moving towards the tail-end of the wet season, March surfaces a few slight changes in the weather of Christmas Island. The volume of rainfall drops to 291mm (11.46"), reducing the overall wetness of this Pacific paradise. Although the rainfall dwindles compared to February, visitors need to pack the perfect blend of both summer and rain gear. Weather in March »

Weather in April

As the island transitions from the wet to the dry season, April offers a noticeably different weather pattern. Rainfall dramatically falls to 222mm (8.74"), leading to a significant decrease in the island's relative humidity. It also marks the beginning of a progressive decline in precipitation which will continue in the subsequent months. Weather in April »

Weather in May

May brings a marked change in Christmas Island's weather, with significant shifts in climatic features. Rainfall further decreases to 177mm (6.97") as the island enters the heart of the dry season. The weather transitions to more dry and sunny days, providing ideal conditions for outdoor activities and exploration. Weather in May »

Weather in June

June in Christmas Island continues the dry season trend with an ever-diminishing amount of rainfall. With a moderate 156mm (6.14") of rain, June symbolizes the transition between the first and second half of the year. The temperatures remain substantially constant, providing tourists with ample opportunities for beach activities. Weather in June »

Weather in July

July brings Christmas Island to the peak of the dry season, altering the island’s moisture content. This month records the lowest rainfall of only 97mm (3.82"), coming as a relief after the monsoon months. The reduction in rainfall leads to less cloudy skies, providing clearer views of the stars. Weather in July »

Weather in August

As August rolls in, Christmas Island retains its dry season weather characteristics. The rainfall dips even lower to 43mm (1.69"), resulting in an environment that's even drier than July. It marks one of the driest periods of the year, with less humidity and dampness. Weather in August »

Weather in September

Weather in September on Christmas Island begins to signal the end of the dry season. While maintaining low levels of precipitation, September experiences a slight increase in rainfall to 47mm (1.85"). The change in weather gradually reinstates lushness in the landscape. Weather in September »

Weather in October

October in Christmas Island denotes a transition period, marking the onset of the wet season. The island observes an increased level of precipitation with a total of 69mm (2.72") of rainfall. Natural habitats begin to come alive, virtually blooming overnight due to the increased moisture. Weather in October »

Weather in November

November on Christmas Island witnesses a marked shift towards the wet season's weather. Rainfall steadily escalates to reach a considerable 148mm (5.83"), much higher than the preceding months. This rainfall increase significantly refreshes the island’s flora and fauna populations. Weather in November »

Weather in December

As Christmas Island segues into December, the weather reverts to full wet season mode. A further increased rainfall to 211mm (8.31") is recorded for the month, second only to February. It mirrors weather conditions similar to the first quarter of the year, with a mix of warm and wet days. Weather in December »

Updated: Aug 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 152 rainfall days, and 2101mm (82.72") of precipitation is accumulated.

When is the highest UV index?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index.

What is the rainiest month?

The month with the most rainfall is February, when the rain falls for 14 days and typically aggregates up to 348mm (13.7") of precipitation.

When is the sea warmest?

The months with the warmest seawater are February through May, with an average sea temperature of 29°C (84.2°F).

What time of the year is the hottest?

Christmas Island's temperature peaks during March and April, with an average high-temperature of 29.2°C (84.6°F).

What month has the most sunshine?

The month with the most sunshine is March, with an average of 22h of sunshine.

What is the month with the shortest days?

The month with the shortest days is June, with an average of 11h and 30min of daylight.

When is the lowest UV index?

June and July, with an average maximum UV index of 9, are months with the lowest UV index.

What month is the coldest?

Christmas Island's coldest month, August, generally records average temperatures ranging from a high of 27°C (80.6°F) to a low of 23.2°C (73.8°F).

What is the driest month?

The month with the least rainfall is August, when the rain falls for 10 days and typically collects 43mm (1.69") of precipitation.

When is the sea coldest?

With an average sea temperature of 26°C (78.8°F), September is the month with the coldest seawater.

What is the month with the least sunshine?

September has the least sunshine of the year, with an average of 8h of sunshine.

When are the longest days?

The month with the longest days is December, with an average of 12h and 42min of daylight.

Is there Daylight Saving Time (DST)?

Christmas Island does not observe Daylight Saving Time (DST). +07 timezone is used over the entire year.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N D

Average temperature
Christmas Island, Christmas Island

Average high temperature in January:
28.9°C
Average high temperature in February:
28.9°C
Average high temperature in March:
29.2°C
Average high temperature in April:
29.2°C
Average high temperature in May:
28.8°C
Average high temperature in June:
28°C

Average high temperature in July:
27.2°C
Average high temperature in August:
27°C
Average high temperature in September:
27.2°C
Average high temperature in October:
27.8°C
Average high temperature in November:
28.2°C
Average high temperature in December:
28.7°C

The 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 January:
23.6°C
Average low temperature in February:
23.6°C
Average low temperature in March:
24°C
Average low temperature in April:
24.5°C
Average low temperature in May:
24.8°C
Average low temperature in June:
24.2°C

Average low temperature in July:
23.5°C
Average low temperature in August:
23.2°C
Average low temperature in September:
23.2°C
Average low temperature in October:
23.6°C
Average low temperature in November:
23.8°C
Average low temperature in December:
23.5°C

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

Average rainfall
Christmas Island, Christmas Island

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

Average rainfall days
Christmas Island, Christmas Island

Average rainfall days in January:
15 days
Average rainfall days in February:
14 days
Average rainfall days in March:
22 days
Average rainfall days in April:
14 days
Average rainfall days in May:
13 days
Average rainfall days in June:
12 days

Average rainfall days in July:
10 days
Average rainfall days in August:
10 days
Average rainfall days in September:
8 days
Average rainfall days in October:
9 days
Average rainfall days in November:
12 days
Average rainfall days in December:
13 days

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

Average sea temperature
Christmas Island, Christmas Island

Average sea temperature in January:
28°C
Average sea temperature in February:
29°C
Average sea temperature in March:
29°C
Average sea temperature in April:
29°C
Average sea temperature in May:
29°C
Average sea temperature in June:
28°C

Average sea temperature in July:
27°C
Average sea temperature in August:
27°C
Average sea temperature in September:
26°C
Average sea temperature in October:
27°C
Average sea temperature in November:
28°C
Average sea temperature in December:
28°C

The 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 / Average sunshine
Christmas Island, Christmas Island

Average daylight in January:
12h and 4min
Average daylight in February:
12h and 2min
Average daylight in March:
12h and 1min
Average daylight in April:
11h and 5min
Average daylight in May:
11h and 4min
Average daylight in June:
11h and 3min

Average daylight in July:
11h and 4min
Average daylight in August:
11h and 5min
Average daylight in September:
12h and 0min
Average daylight in October:
12h and 2min
Average daylight in November:
12h and 4min
Average daylight in December:
12h and 4min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

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

Average UV index
Christmas Island, Christmas Island

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

Climate and monthly weather forecastChristmas Island, Christmas Island

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