Climate Insights for Passagem Franca

Passagem Franca, Maranhão, Brazil

Hottest
September
36°C peak
Coldest
July
22°C low
Wettest
March
262mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Passagem Franca is hot. The average annual temperature is 27°C and approximately 1144mm of precipitation falls per year. March is the wettest month, receiving around 262mm of rainfall. Passagem Franca 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: 30° Average: 26° Min: 22° Feb Max: 30° Average: 26° Min: 22° Mar Max: 30° Average: 25° Min: 22° Apr Max: 31° Average: 26° Min: 23° May Max: 32° Average: 27° Min: 23° Jun Max: 32° Average: 27° Min: 22° Jul Max: 33° Average: 27° Min: 22° Aug Max: 34° Average: 28° Min: 22° Sep Max: 36° Average: 29° Min: 23° Oct Max: 35° Average: 29° Min: 24° Nov Max: 33° Average: 28° Min: 23° Dec Max: 32° Average: 27° Min: 23°
Max
Average
Min

Passagem Franca sees moderate temperature variation throughout the year, ranging from 22°C to 36°C. September is the hottest month, with daytime highs reaching 36°C and an average of 29°C. July is the coolest month, with minimum temperatures around 22°C and an average of 27°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 215mm Feb Precipitation: 239mm Mar Precipitation: 262mm Apr Precipitation: 159mm May Precipitation: 32mm Jun Precipitation: 4mm Jul Precipitation: 2mm Aug Precipitation: 1mm Sep Precipitation: 7mm Oct Precipitation: 23mm Nov Precipitation: 93mm Dec Precipitation: 107mm
Precipitation

Passagem Franca is a moderately rainy area, receiving approximately 1144mm of precipitation annually, which averages out to around 95mm per month. The wettest month is March, averaging 262mm of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 1mm. That's 261mm 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: 9km/h Feb Wind Speed: 9km/h Mar Wind Speed: 9km/h Apr Wind Speed: 10km/h May Wind Speed: 13km/h Jun Wind Speed: 16km/h Jul Wind Speed: 17km/h Aug Wind Speed: 16km/h Sep Wind Speed: 14km/h Oct Wind Speed: 12km/h Nov Wind Speed: 10km/h Dec Wind Speed: 10km/h
Wind Speed

Passagem Franca is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16km/h in winter, 12km/h in spring, 10km/h in summer, 11km/h in autumn.

Seasons

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

88 days until Winter

It is currently autumn in Passagem Franca, which began on March 20, 2026. Passagem Franca sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 36°C, while the coldest stretch bottoms out in July near 22°C. Winter is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from 23 to 36°C. Rainfall is relatively light, with around 123mm over the season and a monthly average of 41mm. Winds are generally light, averaging 12km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 22 to 32°C. Rainfall is heavy, totalling around 561mm across the season with a monthly average of 187mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 32°C. Rainfall is heavy, totalling around 454mm across the season with a monthly average of 151mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 22 to 34°C. Precipitation is minimal, with only around 6mm for the entire season. Winds are moderate at around 16km/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 Passagem Franca 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
22 °C
30 °C
9 km/h
215 mm
0 cm
Feb
22 °C
30 °C
9 km/h
239 mm
0 cm
Mar Current
22 °C
30 °C
9 km/h
262 mm
0 cm
Apr
23 °C
31 °C
10 km/h
159 mm
0 cm
May
23 °C
32 °C
13 km/h
32 mm
0 cm
Jun
22 °C
32 °C
16 km/h
4 mm
0 cm
Jul
22 °C
33 °C
17 km/h
2 mm
0 cm
Aug
22 °C
34 °C
16 km/h
1 mm
0 cm
Sep
23 °C
36 °C
14 km/h
7 mm
0 cm
Oct
24 °C
35 °C
12 km/h
23 mm
0 cm
Nov
23 °C
33 °C
10 km/h
93 mm
0 cm
Dec
23 °C
32 °C
10 km/h
107 mm
0 cm
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Metric (°C, km/h)