Fernando de Noronha (Noronha) weather in March

March in Fernando de Noronha: sweltering, soaked, with clean air — fine if you can take 25 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Fernando de Noronha🇧🇷 Brazil · Guianas & Northern Brazil · Island70
  1. 81Jan
  2. 78Feb
  3. 70Mar
  4. 67Apr
  5. 74May
  6. 80Jun
  7. 83Jul
  8. 87Aug
  9. 88Sep
  10. 89Oct
  11. 90Nov
  12. 87Dec

#11 of 12 months in Fernando de Noronha · #925 of 1413 destinations to visit in March · comfort 70/100 (tier B)

Days
31°C
Nights
25°C
Wet days
25
Sun
10.2 h
Humidity
83%
Daylight
12 h
Fernando de Noronha, Brazil
Photo: Maria elias Pinho amaral · Pexels

Traveller notes on Fernando de Noronha in March

Other months in Fernando de Noronha

Regulars are specific this falls within the March-to-July rainy season here, though real rain typically means a strong but short tropical-style shower rather than an all-day soak, one visitor's full week here logging just a single day of rain that barely affected their plans. Our row backs that warm, genuinely wet read, 28.9C reading as a hot 31C, over 24.6C nights feeling 26C, with a substantial 100.7mm of rain across 19 days and a real 30.9 kph wind. Regulars are consistent temperatures stay comfortable in the 25 to 30C range even during an actual shower, this remaining a genuinely great choice for the month despite technically falling in the wet season. The sea sits at a bath-warm 27.5C. The record: 10.8 hours of sun, humidity 80 percent and AQI 51.
ShortTropicalShowersNotAllDaySoaks · July · 1 month ago · Read more on Tripadvisor ↗
December sits opposite the island's rainy stretch, which regulars place from March to July, so this is Brazilian summer at its driest and the season for turtle hatchlings on the beaches. Our row backs the calm half of the year - 44mm across 11.4 days, modest next to the wet months - though air is 30.7C reading as 34C at 80.9 percent humidity, over 25.8C nights and a 27.6C sea. The permit system is the one fact every visitor needs regardless of season: the national-park beaches like Sueste and Sancho charge an entry fee, and it is worth arranging before arrival rather than at the gate. Their warning about the wet months is blunt - when it does rain here there is genuinely nothing to do and the roads can become unusable - which is exactly why December is preferred. The record: 11.4 hours of sun, a 28.6 kph wind and AQI 36.
SummerHereMeansDrySeason · December · 1 month ago · Read more on Tripadvisor ↗
August opens the drier half of the year here and divers name it and September as the two months to come for, because the underwater visibility is at its best - the figure they quote for these waters runs up to fifty metres across twenty-one sites between fourteen and forty-five metres deep. Our row reads the dryness the way these tropical islands usually do: 37.6mm spread over 13.6 precipitation days is under three millimetres each, so showers rather than rain. The other figure to plan around is wind, at 32.3 kph, which is what keeps 29.3C days feeling like 30C rather than worse. The record: 24.6C nights, humidity 79 percent, 11.1 hours of sun, a 27C sea and AQI 54.
FiftyMetresOfVisibility · August · 1 month ago · Read more on Tripadvisor ↗
September is the month divers name for Noronha, because underwater visibility is at its best - 30 metres on average across the island's twenty-odd sites and up to 50 at some of them, with turtles, tuna, jacks, barracuda, groupers and jewfish. The seasonal logic behind it: the rains run March to June, and December to March is the stormy stretch that makes the surfing season, so September sits in the quiet gap. Our row's 10.7 precipitation days over just 22.8mm is about two millimetres a day, showers rather than weather. What it does carry is wind, 32.5 kph of south-east trade. The record: 29.9C days reading as 32C, 24.9C nights, humidity 79 percent, 11.4 hours of sun and a 27C sea.
VisibilityAtItsPeak · September · 1 month ago · Read more on Tripadvisor ↗

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Fernando de Noronha climate normals — March

Daytime high31°C / 87°F🔥 sweltering
Nighttime low25°C / 77°F
Feels like (high)35°C / 95°F
Sea temperature29°C / 84°F♨️ bath-warm
Rainfall258 mm / 10.1 in⛈ soaked
Rainy days25 days
Humidity83%💦 very humid
Dew point24°C / 76°F
Sunshine10.2 h/day
Daylight12.1 h
Wind22 km/h / 14 mph
Air quality (US AQI)29🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Fernando de Noronha in March

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Fernando de Noronha's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherFernando de Noronha's weather peaks September–November.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Fernando de Noronha in March

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Rule

    Island tax and park ticket

    1 Jan – 31 DecBook early

    Everyone pays a daily environmental tax that climbs the longer you stay, and the best beaches sit inside the marine park and need a separate ticket valid ten days. Buy both before you fly. Source ↗

  • Season

    Surf season on the mar de dentro

    1 Dec – 31 Mar · usually

    North-west swell lands on Cacimba do Padre from December and peaks around February, when the contest takes the beach. The same swell ends the flat-water snorkelling on that coast.

  • Nature

    Green turtle nesting

    1 Dec – 30 Jun · usually

    Green turtles come ashore on Leao and Sueste through the southern summer and the hatchlings run into the autumn; nests are roped off and the beaches close at night while it lasts.

  • Season

    Wet season

    MonsoonRisk

    25 rainy days and about 258 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in March →

Where is Fernando de Noronha?

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Fernando de Noronha in March — FAQ

Is March a good time to visit Fernando de Noronha?
March in Fernando de Noronha: sweltering, soaked, with clean air — fine if you can take 25 rainy days. It ranks #11 of 12 months for Fernando de Noronha on SeasonMap's comfort score (70/100).
What is the weather like in Fernando de Noronha in March?
In March, Fernando de Noronha averages a daily high of 30.5°C and a low of 25.2°C, with about 257.8 mm of rain over roughly 24.9 rainy days.
What is the air quality in Fernando de Noronha in March?
Fernando de Noronha has a mean US Air Quality Index of about 29 in March.