Climate Insights for Picos

Picos, Piauí, Brazil

Hottest
October
37°C peak
Coldest
July
21°C low
Wettest
March
133mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Picos is hot. The average annual temperature is 28°C and approximately 504mm of precipitation falls per year. March is the wettest month, receiving around 133mm of rainfall. Picos 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: 28° Min: 24° Feb Max: 32° Average: 27° Min: 23° Mar Max: 31° Average: 27° Min: 23° Apr Max: 32° Average: 27° Min: 23° May Max: 33° Average: 28° Min: 23° Jun Max: 33° Average: 27° Min: 22° Jul Max: 33° Average: 27° Min: 21° Aug Max: 35° Average: 28° Min: 22° Sep Max: 36° Average: 30° Min: 23° Oct Max: 37° Average: 31° Min: 25° Nov Max: 36° Average: 30° Min: 25° Dec Max: 35° Average: 29° Min: 25°
Max
Average
Min

Picos sees moderate temperature variation throughout the year, ranging from 21°C to 37°C. October is the hottest month, with daytime highs reaching 37°C and an average of 31°C. July is the coolest month, with minimum temperatures around 21°C and an average of 27°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 89mm Feb Precipitation: 104mm Mar Precipitation: 133mm Apr Precipitation: 71mm May Precipitation: 15mm Jun Precipitation: 4mm Jul Precipitation: 2mm Aug Precipitation: 0mm Sep Precipitation: 0mm Oct Precipitation: 4mm Nov Precipitation: 34mm Dec Precipitation: 47mm
Precipitation

Picos is a relatively dry area, receiving approximately 504mm of precipitation annually, which averages out to around 42mm per month. The wettest month is March, averaging 133mm of rainfall. February and January also tend to see above-average precipitation. The driest month is September, with just 0mm. That's 133mm 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 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 13km/h Mar Wind Speed: 12km/h Apr Wind Speed: 14km/h May Wind Speed: 17km/h Jun Wind Speed: 20km/h Jul Wind Speed: 21km/h Aug Wind Speed: 21km/h Sep Wind Speed: 20km/h Oct Wind Speed: 19km/h Nov Wind Speed: 17km/h Dec Wind Speed: 16km/h
Wind Speed

Picos is mildly breezy, with an average annual wind speed of 17km/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 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/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 21km/h in winter, 19km/h in spring, 14km/h in summer, 14km/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 Picos, which began on March 20, 2026. Picos 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 37°C, while the coldest stretch bottoms out in July near 21°C. Winter is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from 23 to 37°C. Precipitation is minimal, with only around 38mm for the entire season. Winds are moderate at around 19km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 23 to 35°C. Precipitation is moderate at around 241mm for the season, averaging 80mm per month. Winds are generally light, averaging 14km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 33°C. Precipitation is moderate at around 219mm for the season, averaging 73mm per month. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 21 to 35°C. Precipitation is minimal, with only around 6mm for the entire season. Winds are moderate at around 21km/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 Picos 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
89 mm
0 cm
Feb
23 °C
32 °C
13 km/h
104 mm
0 cm
Mar Current
23 °C
31 °C
12 km/h
133 mm
0 cm
Apr
23 °C
32 °C
14 km/h
71 mm
0 cm
May
23 °C
33 °C
17 km/h
15 mm
0 cm
Jun
22 °C
33 °C
20 km/h
4 mm
0 cm
Jul
21 °C
33 °C
21 km/h
2 mm
0 cm
Aug
22 °C
35 °C
21 km/h
0 mm
0 cm
Sep
23 °C
36 °C
20 km/h
0 mm
0 cm
Oct
25 °C
37 °C
19 km/h
4 mm
0 cm
Nov
25 °C
36 °C
17 km/h
34 mm
0 cm
Dec
25 °C
35 °C
16 km/h
47 mm
0 cm
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Metric (°C, km/h)