Maracanaú weather in October

Name: Maracanaú
Address: BR

In October, Maracanaú has daytime highs averaging 32 °C, nights around 24 °C, with 2.2 wet days, and a sea temperature of 27 °C. Figures are 1991–2020 climate normals.

31.8°C Average high
24.4°C Average low
2.2days Wet days
7mm Rainfall
26.9°C Sea temperature
12h Daylight

Daily temperatures through October

Daily highDaily low Day of month on the horizontal axis. Highs peak at 32.2 °C and lows bottom out at 24.2 °C.

How October develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days	Avg high	Avg low	Chance of rain
1–10 October	31.9 °C	24.3 °C	5 %
11–20 October	31.9 °C	24.5 °C	7 %
21–31 October	31.7 °C	24.5 °C	9 %

Chance of a wet day (over 1 mm) by date in October. Wettest date over the 30 years: October 7, at 20 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical October	Share of the month
Days above 25 °C	31 of 31	100 %
Days above 30 °C	30 of 31	96 %
Days below 0 °C	0 of 31	0 %
Days with more than 1 mm rain	2.2 of 31	7 %

Conditions in October

Measure	Average
Mean temperature	27 °C
Record high (1991–2020)	35 °C
Record low (1991–2020)	23 °C
Relative humidity	69 %
Wind speed	22 km/h
Cloud cover	37 %

Where Maracanaú ranks in October

Ranking	Position	Value
The warmest places in South America in October	35thof 50	32 °C

October compared with the months around it

Month	Avg high	Rainfall	Cloud
August	31.5 °C	8 mm	27 %
September	31.9 °C	5 mm	27 %
October	31.8 °C	7 mm	37 %
November	31.7 °C	11 mm	47 %
December	31.3 °C	33 mm	53 %

See all twelve months for Maracanaú

October is the 2nd warmest month here.
It is the 2nd driest month of the year.
It ranks 3rd for least cloud cover.
Days last about 12 hours from sunrise to sunset.
It rains on 2.2 of 31 days — 7 % of the month.
Nights are about 7.4 °C cooler than the middle of the day.
The hottest October day on record since 1991 reached 35 °C, 2.8 °C above the usual daytime high.
Beach score: 90 / 100 — see how this is calculated.

Nearby destinations in October

Destination	Avg high	Wet days	Sea
Maracanaú	32 °C	2.2	27
Caucaia	31 °C	1	27
Fortaleza	30 °C	2	27
Sobral	36 °C	1	–

QuestionsOctober in Maracanaú, answered

How warm is Maracanaú in October?

Daily highs average 32 °C and nights fall to about 24 °C, a spread of 7.4 °C between afternoon and dawn. That makes October the 3rd warmest month of the year here.

Does it rain much in Maracanaú in October?

October averages 7 mm of rain, spread over about 2 of the 31 days — 7 % of the month. Cloud cover averages 37 % of the sky.

Is the sea warm enough to swim in October?

The sea averages 27 °C off Maracanaú in October. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in October?

Maracanaú averages 12 hours between sunrise and sunset in October. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.