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Castelo do Piauí weather

At 11:45 PM local time it was clear and 30°C (86°F). Little to no rain in the next 24 hours. Best months for weather: May–Aug. Castelo do Piauí sits 241 m (791 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Castelo do Piauí, Piauí, Brazil.

Castelo do Piauí · Clear · 30°
Sat, Oct 31 · 11:45 PM
Reference footage
Angle 1/3

Current conditions

🌙
30°
Clear
Clouds
0%
Chance of rain
0%
Rain
0.0 mm/h

Hourly Forecast

Little to no rain in the next 24 hours

0%
☀️11 PM
0%
☀️12 AM
0%
☀️1 AM
0%
☀️2 AM
0%
☀️3 AM
0%
☀️4 AM
0%
☀️5 AM
0%
☀️6 AM
0%
☀️7 AM
0%
☀️8 AM
0%
☀️9 AM
1%
☀️10 AM
1%
☀️11 AM
2%
🌤️12 PM
2%
🌤️1 PM
2%
🌤️2 PM
2%
🌤️3 PM
1%
🌤️4 PM
1%
☀️5 PM
0%
☀️6 PM
0%
☀️7 PM
0%
☀️8 PM
0%
☀️9 PM
0%
☀️10 PM

Daily Forecast

S
M
T
W
T
F
S
Oct 18
19
20
21
22
23
24☁️40°26°
25☁️38°26°
26☁️39°25°
27🌦️38°26°0.2 mm
28🌦️38°25°1.7 mm
29🌦️36°24°2.2 mm
30🌦️38°25°0.3 mm
31🌤️39°24°
Nov 1🌤️39°25°
2🌤️39°25°
3☀️39°26°
4⛅39°25°
5☀️40°25°
6⛅40°25°
7☀️41°26°
8🌦️39°26°💧15%
9🌦️38°26°💧25%
10🌦️38°24°💧21%
11🌤️39°26°💧10%
12☁️39°26°💧16%
13☁️40°26°💧16%
14☁️40°26°💧15%
15🌦️38°25°💧25%
16
17
18
19
20
21
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Best Time to Visit

Peak season May–AugOff season Jan–Apr

Off135 mm
32°22°☁ 71%Jan
Off156 mm
30°21°☁ 75%Feb
Off186 mm
30°21°☁ 75%Mar
Off162 mm
29°21°☁ 71%Apr
Peak65 mm
31°21°☁ 53%May
Peak17 mm
32°20°☁ 39%Jun
Peak8 mm
33°20°☁ 32%Jul
Peak4 mm
35°21°☁ 25%Aug
Fair2 mm
37°22°☁ 26%Sep
Fair11 mm
37°23°☁ 35%Oct
Fair18 mm
37°23°☁ 45%Nov
Fair48 mm
35°23°☁ 58%Dec

About Castelo do Piauí weather

Is it raining in Castelo do Piauí right now?

No. It’s clear and 30° right now. Little to no rain in the next 24 hours.

What’s the weather like in Castelo do Piauí this week?

Over the next 7 days, expect highs of 39–40° and lows of 24–26°. Little rain is expected. The driest day looks like Sunday.

Has it been raining in Castelo do Piauí lately?

In the past 7 days, Castelo do Piauí had 2 rainy days and 4.4 mm of rain in total.

What should I pack for Castelo do Piauí?

For the coming week, bring light, breathable clothes and sunscreen.

Castelo do Piauí weather by month

When is the best time to visit Castelo do Piauí?

Based on weather alone, the best time to visit Castelo do Piauí is May–Aug, according to NASA's 2001–2025 climate averages. Jan–Apr tends to be the least pleasant. Average highs run from 29°C (85°F) in April to 37°C (99°F) in October.

What is the rainiest month in Castelo do Piauí?

March is the wettest month, with about 186 mm (7.3 in) of rain on average. September is the driest, with about 2 mm (0.1 in).

What is the hottest month in Castelo do Piauí?

October is the warmest, with average highs of 37°C (99°F) and lows of 23°C (73°F). April is the coolest, with highs of 29°C (85°F) and lows of 21°C (70°F).

Does Castelo do Piauí have a rainy season?

Yes. Feb–Apr is the rainy season (150 mm or more a month), while Jun–Dec is usually dry (under 60 mm).

Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months

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Weather near Castelo do Piauí

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