Climate averages 1991–2020

Araruama weather
in March.

A warm, wet month: the 3rd warmest and the 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 27.2°C Daytime mean, March

Average low 23.6°C Night-time mean, March

Rainfall 162 mm 16 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

March is a warm month in Araruama: daytime highs average 27.2°C and nights cool to about 23.6°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 162 mm of rain on roughly 16 days, which makes March a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average March day.

The nearest other city in this atlas is Saquarema (13 km away). In March its highs average 27.7°C, about as warm as Araruama, with 126 mm of rain.

Among the 448 cities listed in Brazil, Araruama ranks joint 283rd of 448 for the warmest March highs and joint 253rd of 448 for the driest March (rainfall, lowest first). The mean March high of those 448 cities is 27.9°C; Araruama is 0.7°C cooler than that mean.

From March to April, average highs fall by 1.1°C to 26.1°C, and monthly rainfall falls from 162 mm to 85 mm.

The annual picture

March in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Araruama climate table

1991–2020

Monthly climate averages for Araruama, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	27.5°C23.6°C	23.6°C	178	15.5	13.413 h
February	28.0°C23.9°C	23.9°C	128	11.7	12.913 h
March, selected	27.2°C23.6°C	23.6°C	162	16.1	12.212 h
April	26.1°C22.5°C	22.5°C	85	11.6	11.612 h
May	24.2°C20.5°C	20.5°C	73	10.7	11.011 h
June	23.6°C19.5°C	19.5°C	43	6.9	10.811 h
July	23.2°C18.9°C	18.9°C	45	7.6	10.911 h
August	23.4°C19.1°C	19.1°C	42	7.2	11.311 h
September	23.9°C19.7°C	19.7°C	74	9.9	11.912 h
October	24.6°C20.7°C	20.7°C	94	11.1	12.613 h
November	25.2°C21.5°C	21.5°C	172	15.9	13.213 h
December	26.6°C22.9°C	22.9°C	189	16.8	13.514 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Araruama

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Araruama) is explained once on the Araruama year overview and on the Sources, method and limits page.