When to go to Cook Islands?
Going on holiday to the Cook Islands is a genuine delight. The particularly favourable climate of the islands, with their heat and endless sunshine, together with continuously warm sea water, guarantees you will enjoy a perfect holiday. Despite this warm, tropical climate, certain months of the year have become known to be more appropriate than others for making the most out of the beautiful beaches or for going scuba diving in the heart of the lagoons.
The hottest temperatures can be found between November and April where they can peak up to 30°C. You can consider this period as being the rain season, with rain being more heavy than the rest of the year. This rain comes mainly at the end of the afternoons which helps lush plants to blossom.
The period running from June to October is the most pleasant as it is drier and cooler than the rain season. Indeed, the heat does fall slightly – moderated by trade winds – even if maximum temperatures never fall below 29°C and minimums below 19°C. The sea temperature stays permanently at 25°C, ideally warm for diving comfortably into the turquoise waters of the lagoons and discovering the beautiful coral reefs. The rain is also less heavy during this time of year.
A genuine tropical paradise, the Cook Islands archipelago enjoys a relatively consistent climate all year round. We do advise you, however, to make the driest months – between June and October – where the heat drops slightly, your preferred choice. This is the most appropriate time for engaging in water sports, going scuba diving, or simply lazing around on the white sand beaches.
| Jan | Feb | March | April | May | June | Jul | August | Sept | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beach and Sun |  | | | | |
Temperatures Cook Islands
| Jan | Feb | March | April | May | June | Jul | August | Sept | Oct | nov. | dec. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min temperature | 24° | 24° | 24° | 23° | 21° | 20° | 19° | 19° | 20° | 21° | 22° | 23° |
| Max temperature | 29° | 30° | 30° | 29° | 27° | 26° | 26° | 26° | 26° | 27° | 28° | 28° |
| Sea temperature | 28° | 28° | 28° | 28° | 26° | 25° | 25° | 25° | 25° | 25° | 26° | 27° |
Sunshine
Rainfall Cook Islands
The weather month by month in Cook Islands
Weather Cook Islands in January
Sea: 28 °
| 12 d/month | 7 d/month | 5 d/month | 5 d/month | 2 d/month |
In January, in Cook Islands, Minimum temperatures vary between 24 in the morning and 29 in the afternoon. Temperatures are hot. The average rainfall is around 187 inches, for 14 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in February
Sea: 28 °
| 12 d/month | 7 d/month | 4 d/month | 3 d/month | 1 day | 1 day |
In February, in Cook Islands, Minimum temperatures vary between 24 in the morning and 30 in the afternoon. The average rainfall is around 195 inches, for 16 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in March
Sea: 28 °
| 12 d/month | 8 d/month | 5 d/month | 5 d/month | 1 day |
In March, in Cook Islands, Minimum temperatures vary between 24 in the morning and 30 in the afternoon. The average rainfall is around 159 inches, for 14 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in April
Sea: 28 °
| 9 d/month | 9 d/month | 6 d/month | 4 d/month | 1 day | 1 day |
In April, in Cook Islands, Minimum temperatures vary between 23 in the morning and 29 in the afternoon. Temperatures are hot. The average rainfall is around 175 inches, for 18 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in May
Sea: 26 °
| 9 d/month | 9 d/month | 6 d/month | 4 d/month | 3 d/month |
In May, in Cook Islands, Minimum temperatures vary between 21 in the morning and 27 in the afternoon. Temperatures are hot. The average rainfall is around 169 inches, for 18 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in June
Sea: 25 °
| 10 d/month | 8 d/month | 7 d/month | 3 d/month | 1 day | 1 day |
In June, in Cook Islands, Minimum temperatures vary between 20 in the morning and 26 in the afternoon. Temperatures are hot. The average rainfall is around 69 inches, for 22 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in July
Sea: 25 °
| 11 d/month | 8 d/month | 7 d/month | 2 d/month | 2 d/month | 1 day |
In July, in Cook Islands, Minimum temperatures vary between 19 in the morning and 26 in the afternoon. Temperatures are hot. The average rainfall is around 107 inches, for 22 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in August
Sea: 25 °
| 9 d/month | 9 d/month | 9 d/month | 2 d/month | 1 day | 1 day |
In August, in Cook Islands, Minimum temperatures vary between 19 in the morning and 26 in the afternoon. Temperatures are hot. The average rainfall is around 65 inches, for 21 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in September
Sea: 25 °
| 11 d/month | 7 d/month | 5 d/month | 4 d/month | 2 d/month | 1 day |
In September, in Cook Islands, Minimum temperatures vary between 20 in the morning and 26 in the afternoon. Temperatures are hot. The average rainfall is around 105 inches, for 22 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in October
Sea: 25 °
| 12 d/month | 8 d/month | 6 d/month | 2 d/month | 2 d/month | 1 day |
In October, in Cook Islands, Minimum temperatures vary between 21 in the morning and 27 in the afternoon. Temperatures are hot. The average rainfall is around 82 inches, for 21 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in November
Sea: 26 °
| 12 d/month | 9 d/month | 4 d/month | 3 d/month | 1 day | 1 day |
In November, in Cook Islands, Minimum temperatures vary between 22 in the morning and 28 in the afternoon. Temperatures are hot. The average rainfall is around 123 inches, for 19 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Cook Islands in December
Sea: 27 °
| 11 d/month | 8 d/month | 6 d/month | 3 d/month | 2 d/month | 1 day |
In December, in Cook Islands, Minimum temperatures vary between 23 in the morning and 28 in the afternoon. Temperatures are hot. The average rainfall is around 168 inches, for 14 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day