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.
Average temperatures - Alofi

Alofi	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Alofi	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	23	24	24	23	22	21	20	20	21	21	22	23
Max (°C)	28	29	28	27	26	26	25	25	26	26	27	28
Min (°F)	73	75	75	73	72	70	68	68	70	70	72	73
Max (°F)	82	84	82	81	79	79	77	77	79	79	81	82

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, there's no shortage of rainfall: on average, 80/100 mm (3/4 in) per month fall even from June to September. Here is the average precipitation.
Average precipitation - Alofi

Alofi	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Alofi	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	260	250	300	200	130	80	90	100	100	120	140	190	1960
Prec.(in)	10.2	9.8	11.8	7.9	5.1	3.1	3.5	3.9	3.9	4.7	5.5	7.5	77.2
Days

Niue can be affected by tropical cyclones from November to mid-May, although they are more likely from December to April.



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.
Sea temperature - Niue

Niue	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niue	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	28	28	28	28	27	26	25	25	25	25	26	27
Sea (°F)	82	82	82	82	81	79	77	77	77	77	79	81

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.


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.