Climate Insights for Arari

Arari, Maranhão, Brazil

Hottest
October
36°C peak
Coldest
July
24°C low
Wettest
March
402mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Arari is hot. The average annual temperature is 28°C and approximately 1624mm of precipitation falls per year. March is the wettest month, receiving around 402mm of rainfall. Arari sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 32° Average: 27° Min: 24° Feb Max: 31° Average: 27° Min: 24° Mar Max: 31° Average: 27° Min: 24° Apr Max: 32° Average: 27° Min: 24° May Max: 32° Average: 28° Min: 25° Jun Max: 32° Average: 28° Min: 24° Jul Max: 32° Average: 28° Min: 24° Aug Max: 34° Average: 29° Min: 24° Sep Max: 35° Average: 29° Min: 25° Oct Max: 36° Average: 30° Min: 25° Nov Max: 35° Average: 29° Min: 25° Dec Max: 33° Average: 29° Min: 25°
Max
Average
Min

Arari sees moderate temperature variation throughout the year, ranging from 24°C to 36°C. October is the hottest month, with daytime highs reaching 36°C and an average of 30°C. July is the coolest month, with minimum temperatures around 24°C and an average of 28°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 221mm Feb Precipitation: 286mm Mar Precipitation: 402mm Apr Precipitation: 337mm May Precipitation: 124mm Jun Precipitation: 46mm Jul Precipitation: 28mm Aug Precipitation: 7mm Sep Precipitation: 5mm Oct Precipitation: 15mm Nov Precipitation: 53mm Dec Precipitation: 100mm
Precipitation

Arari is a fairly wet location, receiving approximately 1624mm of precipitation annually, which averages out to around 135mm per month. The wettest month is March, averaging 402mm of rainfall. April and February also tend to see above-average precipitation. The driest month is September, with just 5mm. That's 397mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 12km/h Mar Wind Speed: 11km/h Apr Wind Speed: 11km/h May Wind Speed: 11km/h Jun Wind Speed: 13km/h Jul Wind Speed: 14km/h Aug Wind Speed: 15km/h Sep Wind Speed: 17km/h Oct Wind Speed: 18km/h Nov Wind Speed: 17km/h Dec Wind Speed: 15km/h
Wind Speed

Arari is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

89 days until Winter

It is currently autumn in Arari, which began on March 20, 2026. Arari sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 36°C, while the coldest stretch bottoms out in July near 24°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 25 to 36°C. Rainfall is relatively light, with around 74mm over the season and a monthly average of 25mm. Winds are moderate at around 17km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 24 to 33°C. Rainfall is heavy, totalling around 607mm across the season with a monthly average of 202mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 863mm across the season with a monthly average of 288mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 24 to 34°C. Rainfall is relatively light, with around 80mm over the season and a monthly average of 27mm. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Arari based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
24 °C
32 °C
13 km/h
221 mm
0 cm
Feb
24 °C
31 °C
12 km/h
286 mm
0 cm
Mar Current
24 °C
31 °C
11 km/h
402 mm
0 cm
Apr
24 °C
32 °C
11 km/h
337 mm
0 cm
May
25 °C
32 °C
11 km/h
124 mm
0 cm
Jun
24 °C
32 °C
13 km/h
46 mm
0 cm
Jul
24 °C
32 °C
14 km/h
28 mm
0 cm
Aug
24 °C
34 °C
15 km/h
7 mm
0 cm
Sep
25 °C
35 °C
17 km/h
5 mm
0 cm
Oct
25 °C
36 °C
18 km/h
15 mm
0 cm
Nov
25 °C
35 °C
17 km/h
53 mm
0 cm
Dec
25 °C
33 °C
15 km/h
100 mm
0 cm
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Metric (°C, km/h)