The average temperature for the week of 7 July 2025 - 13 July 2025 was 24 °C (75 °F) during the day and 23 °C (73 °F) during the night. Both the daily and night temperatures in Aitutaki are slightly below the long-term average, which is around 27 °C (81 °F) and 22 °C (72 °F) respectively. The average temperatures observed during different times of day (based on local time) were as below: 7am 24 °C (75 °F), 10am 24 °C (75 °F), 1pm 24 °C (75 °F), 4pm 24 °C (75 °F), 7pm 24 °C (75 °F), 10pm 24 °C (75 °F).

During this week: 2 days without rain, 1 day with light rain and 4 days with moderate rain were observed. Aitutaki received 16 mm (0.63 in) of precipitation throughout the week, which is slightly below its long-term average of 21 mm (0.83 in). From dawn to dusk, there was an average of 92 % cloud coverage during the day.

An average wind speed of 5.8 m/s was recorded. The prevailing winds blew from the South-East and West. The atmosferic pressure ranged from 1010 hpa to 1018 hpa. On average, the air humidity in Aitutaki was 76 %.

On average, there were 1 hour partially overcast skies, 8 hours overcast skies and 3 hours rainy weather during the daytime (from dawn to dusk). Average time of sunrise was 07:12, average time of sunset was 18:16.

Weather overview

Aitutaki (Cook Islands) is a place with a tropical climate. The day temperatures range from 27 °C (80 °F) in July to 30 °C (86 °F) in March. Temperatures during the night go from 22 °C (71 °F) in August to 25 °C (76 °F) in March. The least rainy month in Aitutaki is August with its 3 days of rain, the rainiest month is March, when it rains 18 days. Sea temperatures are in the following range: 25 °C (78 °F) in August to 28 °C (83 °F) in March.

January weather

The wet season is at its beginning in January in Aitutaki. The rise of the day temperature can be observed, with its value being 30 °C (85 °F), and the sea temperature continues to rise as well, the value of this measure is 28 °C (82 °F). The number of rainy days continues to rise, its value is 17 days, while the rainfall amount reaches its maximum in January. The maximum of the number of sun hours (without clouds) can be noticed, with its value being 0 hours.

February weather

There is pending wet season in Aitutaki. The number of rainy days rises similarly to the previous month, the value of this measure is 18 days, while the rainfall amount descent's start could be observed in this month.

March weather

The maximum of the day temperature can be noticed, with its value of 30 °C (86 °F) in Aitutaki, and the sea temperature reaches its maximum too in March. The wet season continues in March. The maximum of the number of rainy days can be noticed, its value is 18 days, while the rainfall amount descents similarly to the previous month, with its value being 178 mm (7.01 in). The maximum of the night temperature can be noticed.

April weather

The beginning of the descent of the day temperature could be noticed, its value is 30 °C (85 °F) in Aitutaki, and the night temperature descent's start could be observed too. The ongoing wet season is noticeable. The number of rainy days descent's start could be observed, with its value of 13 days.

May weather

The tourist season is about to start in Aitutaki. The descent of the day temperature can be observed, while the sea temperature descent's start could be observed, its value is 27 °C (81 °F). The descent of the number of rainy days can be observed, the value of this measure is 9 days, while the rainfall amount descent's start could be observed, with its value of 125 mm (4.90 in). The descent of the night temperature can be observed, the value of this measure is 23 °C (74 °F).

June weather

The descent of the day temperature can be observed, its value is 27 °C (81 °F) in Aitutaki, and the descent of the sea temperature can be observed too, with its value of 26 °C (80 °F). The tourist season is close to its peak in June. The number of rainy days continues to descent, its value is 6 days, and the rainfall amount descents similarly to the previous month too, with its value of 90 mm (3.53 in). The night temperature descents similarly to the previous month, with its value of 22 °C (72 °F).

July weather

The day temperature reaches its minimum, with its value of 27 °C (80 °F) in Aitutaki, while the descent of the sea temperature can be observed, with its value of 26 °C (78 °F). There is pending tourist season this month. The number of rainy days continues to descent, with its value being 5 days. The night temperature descents similarly to the previous month, with its value being 22 °C (71 °F). The maximum of the wind speed is observable, with its value of 6.

August weather

The ongoing tourist season is noticeable in Aitutaki, and the dry season is close to its peak too in August. The minimum of the sea temperature can be noticed, and the night temperature is on its minimum as well in this month. The minimum of the rainfall amount can be noticed, the value of this measure is 75 mm (2.95 in), and the minimum of the number of rainy days is observable as well in this month.

September weather

The tourist season is taking place in Aitutaki, and the dry season is close to its peak as well. The beginning of the rise of the day temperature could be noticed, the value of this measure is 27 °C (81 °F). The number of rainy days starts to rise, with its value being 5 days, and the rainfall amount rise's start could be observed too, with its value being 104 mm (4.08 in).

October weather

The day temperature rises similarly to the previous month, the value of this measure is 28 °C (82 °F) in Aitutaki, while the night temperature rise's start could be observed in October. The tourist season continues, and there is pending dry season as well in October. The rise of the rainfall amount can be observed.

November weather

The rise of the day temperature can be observed, with its value of 29 °C (84 °F) in Aitutaki, while the sea temperature starts to rise, the value of this measure is 26 °C (80 °F). The tourist season is close to its peak. The rainfall amount rises similarly to the previous month, with its value of 141 mm (5.55 in), while the number of rainy days rise's start could be observed, its value is 6 days. The night temperature rises similarly to the previous month, with its value of 23 °C (73 °F).

December weather

The rise of the day temperature can be observed, with its value being 29 °C (85 °F) in Aitutaki, and the sea temperature continues to rise too, with its value of 27 °C (81 °F). The tourist season is taking place. The rise of the rainfall amount can be observed, its value is 230 mm (9.07 in), and the rise of the number of rainy days can be observed as well, its value is 11 days. The maximum of the day length is observable, the value of this measure is 13 hours.

What is the night temperature in May in Aitutaki?

The average night temperature in May in Aitutaki is 23 °C (74 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.

What is the sea temperature in Aitutaki in June?

In Aitutaki in June expect the sea to be warm at 26 °C (80 °F). Seems like an ideal temperature for swimming, you can stay in the sea for a long time and enjoy it as well.

How many rainy days can I expect in July in Aitutaki?

There are 5 days, which are rainy in July in Aitutaki, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.1 days of the week, or in general - 16 % days.

Is August a good month to visit Aitutaki?

August is one of the best months to visit Aitutaki. The daily temperatures in this month reach pleasant 27 °C (80 °F). The temperature of the sea will be perfect at 25 °C (78 °F). At night, temperatures hover around a pleasant 22 °C (71 °F). There are only 3 days of rain in the whole month, so you can leave your umbrella at home.

What temperature can I expect during the day in September in Aitutaki?

The average daily temperature in September in Aitutaki is 27 °C (81 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

Is it hot in Aitutaki in October?

In October in Aitutaki, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

Is there a wet season in November in Aitutaki?

No, there is no wet season in November in Aitutaki - you can expect 6 days of rain during the month.

How windy is it in Aitutaki in December?

In December in Aitutaki, there will be an average wind scale of 5.