Altamira

Região Geográfica Intermediária de Teresina, Piauí, Brazil

Current Weather

29°83°

Mostly Clear

Feels Like: 29°83°

Min: 24°76°

Max: 38°101°

The next few hours will be clear, with tomorrow reaching 38°C and dropping to 25°C. The coming days will be mostly clear throughout the day.

Hourly Forecast

29°85°28°83°28°82°27°80°26°79°26°79°25°78°25°78°25°77°25°77°27°81°29°85°31°88°33°92°35°95°37°98°37°99°38°100°38°101°37°98°35°96°34°93°32°90°30°86°
16%
16%
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
Today
Tomorrow

Want a closer look at the weather?

Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.

Get Premium

Air Quality

67
Moderate

Air quality is acceptable. However, there may be a risk for some people.

GoodHazardous

Daylight Hours

05:30

Sunrise

17:38

Sunset

12 hours 8 minutes of sunlight today

Moon

16:24

Moonrise

03:55

Moonset

Daily Forecast

Saturday

24°76°
38°101°

Today

25°77°
38°101°

Monday

25°76°
39°101°

Tuesday

25°76°
38°101°

Wednesday

25°77°
38°101°

Thursday

25°77°
38°101°

Friday

25°77°
39°103°

Saturday

26°78°
38°101°

Sunday

25°77°
38°101°

Monday

25°77°
39°102°

UV Index

No protection needed
0Low
LowExtreme

Humidity

67%Comfortable
LowHigh

Looking at the night sky?

See moon phases, eclipses, and seasons for this year.

View astronomy

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Altamira.

View stargazing score

Weather in Altamira tomorrow, October 25, 2026

Expect a muted, overcast feel in Altamira on October 25, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Morning skies stay relatively clear, holding cloud close to 59% near 11:00. The early part of the day favours being outside.Expect a muted, overcast feel in Altamira on October 25, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Morning skies stay relatively clear, holding cloud close to 59% near 11:00. The early part of the day favours being outside.

The day peaks near 38°C and cools toward 25°C. Moisture in the air spans 30%-81%, with the highest values around 03:00. A lighter breeze peaks around 20:00 near 17 km/h.The day peaks near 101°F and cools toward 77°F. Moisture in the air spans 30%-81%, with the highest values around 03:00. A lighter breeze peaks around 20:00 near 10 mph.

Expect persistent cloud later on, with amounts around 82% by 15:00. Sunshine remains the exception, not the rule. Visibility stays near 16.1 km. Daylight runs from 05:30 to 17:38, lasting 12 hours 8 minutes of sunlight today.Expect persistent cloud later on, with amounts around 82% by 15:00. Sunshine remains the exception, not the rule. Visibility stays near 10 mi. Daylight runs from 05:30 to 17:38, lasting 12 hours 8 minutes of sunlight today.

The practical takeaway for Altamira on October 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 38°C.The practical takeaway for Altamira on October 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 101°F.

Frequently asked questions about weather in Altamira

How warm does it get in Altamira?

The warmest month in Altamira is October, with average high temperatures of 37°C. The average temperature during this period is around 31°C.The warmest month in Altamira is October, with average high temperatures of 99°F. The average temperature during this period is around 87°F.

How cold does it get in Altamira?

The coldest month in Altamira is July, with average low temperatures of 23°C. The average temperature during this period is around 28°C.The coldest month in Altamira is July, with average low temperatures of 73°F. The average temperature during this period is around 82°F.

What is the wettest time of year in Altamira?

The wettest month in Altamira is March, with an average of 408 mm of precipitation.The wettest month in Altamira is March, with an average of 16 in of precipitation.

What is the driest time of year in Altamira?

The driest month in Altamira is September, with an average of 1 mm of precipitation.The driest month in Altamira is September, with an average of 0 in of precipitation.

View full climate insights for Altamira →