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Monthly climate in Porto, Piauí, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Porto features a tropical savanna climate (Aw).Temperatures typically range between 27 °C (80 °F) and 30 °C (87 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 1561 mm (61.5 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually.Porto enjoys an average of 3717 hours of sunshine throughout the year, and daylight varies from 11 hours 53 minutes to 12 hours 19 minutes per day.

Monthly average temperatures in Porto, Piauí, Brazil §

The warmest months in Porto are September, October and November, with daily mean temperatures ranging from 30 to 30 °C (86 - 87 °F) throughout the day. The coldest temperatures usually occur in February, March and April, when daily mean temperatures range from 27 to 27 °C (80 - 81 °F) throughout the day. On average each year, Porto experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Porto, Piauí, Brazil.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 38°C
(101°F)		 35°C
(95°F)		 34°C
(93°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(94°F)		 35°C
(95°F)		 37°C
(98°F)		 39°C
(102°F)		 39°C
(103°F)		 39°C
(103°F)		 39°C
(103°F)
Mean maximum 36°C
(98°F)		 34°C
(94°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 34°C
(94°F)		 36°C
(97°F)		 37°C
(100°F)		 39°C
(102°F)		 38°C
(101°F)		 37°C
(99°F)
Average high 33°C
(91°F)		 32°C
(89°F)		 31°C
(89°F)		 31°C
(89°F)		 32°C
(89°F)		 32°C
(90°F)		 33°C
(92°F)		 34°C
(94°F)		 36°C
(97°F)		 37°C
(98°F)		 36°C
(96°F)		 35°C
(95°F)
Daily mean 28°C
(82°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(82°F)		 29°C
(84°F)		 30°C
(86°F)		 30°C
(87°F)		 30°C
(86°F)		 29°C
(85°F)
Average low 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)
Mean minimum 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 22°C
(71°F)		 20°C
(68°F)		 20°C
(69°F)		 22°C
(71°F)		 23°C
(74°F)		 24°C
(75°F)		 23°C
(74°F)
Minimum 22°C
(72°F)		 22°C
(73°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)		 18°C
(65°F)		 19°C
(66°F)		 20°C
(68°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)

Compare climate in Porto with other places

Compare temperature, precipitation, sunshine, UV index in Porto, Piauí, Brazil with other places around the world.

Monthly average precipitation in Porto, Piauí, Brazil §

Porto usually has the most precipitation in February, March and April, with an average of 26 rainy days and 345 mm (13.6 inches) of precipitation per month.The driest months in Porto are August, September and October. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Porto, Piauí, Brazil.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 194 (7.6) 315 (12.4) 409 (16.1) 312 (12.3) 149 (5.9) 22 (0.9) 18 (0.7) 3 (0.1) 2 (0.1) 7 (0.3) 61 (2.4) 69 (2.7)
Average precipitation days (≥ 1 mm) 18 25 29 25 17 4 3 0 0 1 5 10

Monthly sunshine hours in Porto, Piauí, Brazil §

The sunniest months in Porto are August, September and October, when the sun shines an average of 11 hours 19 minutes a day.Least sunny months in Porto: January, February and April receive an average of 8 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Porto, Piauí, Brazil.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 249 249 281 273 318 324 335 346 341 354 328 315
Mean daily daylight hours 12h 18m 12h 12m 12h 6m 12h 0m 11h 55m 11h 53m 11h 54m 11h 58m 12h 4m 12h 10m 12h 16m 12h 19m

Solar UV radiation in Porto, Piauí, Brazil §

Porto experiences the highest level of ultraviolet (UV) radiation in January, March and April, when the maximum UV index can reach values of 14 - 16, which corresponds to the Extreme category of sun exposure.June, July and October are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Porto UV Index data.

Average daily maximum UV levels by month for Porto, Piauí, Brazil.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 14 14 16 15 13 11 11 13 13 12 13 13