The climate of the archipelago of Fernando de Noronha, located near the northeast coast of Brazil, is tropical, hot all year round, with a dry season from August to January, and a rainy season from February to July. The archipelago is a UNESCO World Heritage Site.
Given the proximity to the Equator, temperatures are stable throughout the year, and are slightly higher from November to April, when highs are around 30 °C (86 °F), and slightly lower from May to October, when they are around 28/29 °C (82/84 °F). At night, the temperature almost never drops below 20 °C (68 °F).
Here are the average temperatures.
Average temperatures - Fernando de N.

Fernando de N.	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fernando de N.	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	25	25	25	24	24	24	24	24	24	24	25	25
Max (°C)	30	30	30	30	29	29	28	28	29	29	30	30
Min (°F)	77	77	77	75	75	75	75	75	75	75	77	77
Max (°F)	86	86	86	86	84	84	82	82	84	84	86	86

In a typical year, about 1,400 millimetres (55 inches) of rain fall; the wettest period goes from March to June, when the rains are equal to or higher than 200 mm (8 in) per month. Generally, the rainfall amount in February and July is acceptable, but during some years it may be more abundant, reaching the level of the rainiest months.
Here is the average precipitation.
Average precipitation - Fernando de N.

Fernando de N.	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Fernando de N.	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	65	110	265	290	280	190	120	35	20	10	15	20	1420
Prec. (in)	2.6	4.3	10.4	11.4	11	7.5	4.7	1.4	0.8	0.4	0.6	0.8	55.9
Days	6	11	17	18	18	13	11	4	3	1	2	3	107

The driest period, in which it rarely rains, runs from September to December. October is historically the driest month, with fewer deviations from the norm, while in the other dry months, every once in a while an intense shower may occur.
The rainfall distribution in Fernando de Noronha is similar to that of cities located in the north-east of Brazil, such as Fortaleza and Natal.
Relative humidity is high throughout the year, and also in the dry season; however, fortunately, sea breezes give a bit of relief.



The amount of sunshine is never scarce, because the rains come in the form of downpour or thunderstorm, and usually do not last long, however, the sunniest period is the dry season.
Sunshine - Fernando de N.

Fernando de N.	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fernando de N.	J	F	M	A	M	J	J	A	S	O	N	D
Sun (hours)	8	7	6	6	7	7	7	8	9	9	9	9

For swimming, the sea is warm all year round, as you can see in the following table.
Sea temperature - Fernando de N.

Fernando de N.	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fernando de N.	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	28	28	28	29	28	28	27	27	27	27	27	27
Sea (°F)	82	82	82	84	82	82	81	81	81	81	81	81

The best time to visit the archipelago of Fernando de Noronha, for exploring the islands on foot, or for sunbathing, swimming and diving, goes from August to January, being the driest of the year. Surfers will appreciate especially the period beginning in November and peaking in February and March, when waves are higher.