Tuvalu (formerly Ellice Islands), an archipelago located in the Pacific Ocean, south of the equator, has an equatorial climate, ie hot, humid and rainy throughout the year. The rains, occurring in the form of downpours of thunderstorms, can be intense, but usually do not last long, and do not greatly reduce the hours of sunshine.
Temperatures are very stable, around 25 °C (77 °F) at night, and 31 °C (88 °F) during the day. The trade winds blow all year round, but especially in the period from April to October, tempering a little the heat.
Here are the average temperatures of the capital Funafuti.
Average temperatures - Funafuti

Funafuti	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Funafuti	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	25	25	25	25	25	25	25	25	25	25	25	25
Max (°C)	31	31	31	31	31	31	31	31	31	31	31	31
Min (°F)	77	77	77	77	77	77	77	77	77	77	77	77
Max (°F)	88	88	88	88	88	88	88	88	88	88	88	88

Precipitation is definitely abundant, since it exceeds 3,000 millimetres (120 inches) per year.
In the capital Funafuti, 3,200 mm (126 in) of rain per year fall, with a peak between December and March, when rainfall is equal to or greater than 300 mm (12 in) per month, and a minimum (very relative...) between May and October, when it drops below 250 mm (10 in) per month. Here is the average precipitation in Funafuti. In the northernmost islands, the rainfall is slightly less abundant.
Average precipitation - Funafuti

Funafuti	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Funafuti	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	360	315	315	250	235	205	235	230	200	240	275	335	3190
Prec.(in)	14.2	12.4	12.4	9.8	9.3	8.1	9.3	9.1	7.9	9.4	10.8	13.2	125.6
Days	18	18	20	19	19	19	20	20	19	19	18	17	226

The amount of sunshine at Tuvalu is decent, but not exceptional, as clouds that can give rise to rain showers are frequent, but as mentioned they do not last long.
Sunshine - Funafuti

Funafuti	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Funafuti	J	F	M	A	M	J	J	A	S	O	N	D
Sun (hours)	6	6	6	7	6	7	6	7	7	8	6	6

The Tuvalu islands are affected by tropical cyclones of the Southern Hemisphere, in the period from November to mid-May (although sometimes they have occurred outside of this period, as happened with Bebe on late October 1972, and Keli in June 1997). Being not far from the equator, the islands are generally affected by cyclones at the beginning of their formation, but considering that Tuvalu is one of the flattest countries in the world, cyclones can cause flooding, but also storm surges, even if they are not are very strong or if they pass at a certain distance. The northernmost islands (Nanumea, Niutao, Nanumanga), closer to the equator, are located at the edge of the area, where cyclones are rare.



For swimming, the sea in Tuvalu is warm all year round, as we can see in the following table.
Sea temperature - Funafuti

Funafuti	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Funafuti	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	29	29	29	30	30	29	29	29	29	29	30	30
Sea (°F)	84	84	84	86	86	84	84	84	84	84	86	86

The best time to travel to Tuvalu goes from mid-May to late October, being a relatively less rainy period, and out of the cyclone season. Since sometimes there have been cyclones outside of the canonical period, to go on the safe side, you can choose the period from July to mid-October.


All year round, tropics-friendly, loose fitting clothing, sun hat, a scarf for the breeze, a light sweatshirt for the evening, light raincoat or umbrella.