The climate of Niue, an island of the South Pacific, located just north of the Tropic of Capricorn, therefore in the Southern Hemisphere, is tropical, with a warmer period, muggy and rainy, from November to April, and a cooler and drier period from May to October, during which the south-east trade winds dominate. In the warmer period, temperatures hover around 28/29 °C (82/84 °F) during the day, and around 22/24 °C (72/75 °F) at night, while in the cooler period, daytime temperatures drop to around 25/26 °C (77/79 °F), and night-time temperatures to around 20/21 °C (68/70 °F). In the warmer period, sometimes the temperature exceeds 35 °C (95 °F), while in the cooler period at night it can drop below 15 °C (59 °F), especially in July and August.
Here are the average temperatures in the capital Alofi.
Alofi - Average temperatures
Min (°C)232424232221202021212223
Max (°C)282928272626252526262728
Min (°F)737575737270686870707273
Max (°F)828482817979777779798182

The annual precipitation amounts to 2,000 millimetres (79 inches), with a maximum between January and March, when 250/300 mm (10/12 in) of rain per month fall. In the relatively dry period, however, a moderate amount of rain still falls: on average, 80/100 mm (3/4 in) per month even from June to September. Here is the average precipitation.
Alofi - Average precipitation


The temperature of the sea is always warm enough for swimming, it only goes down to 25 °C (77 °F) from July to October, as we can see in the following table.
Niue - Sea temperature
Temp (°C)282828282726252525252627
Temp (°F)828282828179777777777981

Tropical cyclones

Niue can be affected by tropical cyclones. Cyclones are usually formed from November to mid-May, though they are most likely from late December to early April.

When to go

The best time to travel to Niue is from mid-May to October, being the coolest and sunniest of the year. It must be said, however, that it is winter, and sometimes it can be a little cool in the evening and at night, so it may be a good idea to bring a sweatshirt or sweater.

What to pack

In winter (June to August): light clothes for the day, a scarf for the breeze, a sweatshirt for the evening, possibly a light raincoat or umbrella.
In summer (December to February): tropics-friendly, loose fitting clothing, sun hat, a scarf for the breeze, a light sweatshirt for the evening, light raincoat or umbrella.