, with a rainy season from January to May and a dry season from June to December.
The city is located in northeastern Brazil, in the state of Piauí, on the coast of the Atlantic Ocean, near the mouth of the Parnaíba River. Nearby are the towns of Ilha Grande, Luís Correia, and Cajueiro da Praia.
The delta of the Parnaíba River (or Delta das Americas), one of the largest in the world, is characterized by canals, lagoons and sand dunes.
Compared to cities further west, such as Belém and São Luis, the rains are less abundant and the dry season is longer.
The best time to visit Parnaíba is from June to December, being the driest and sunniest of the year. The period from August to November is the driest, but the temperatures are slightly higher.
. Here are the average temperatures.
January is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
23.6 °C and a maximum of
32.4 °C.
On the coldest nights of the month, the temperature usually drops to around
21.5 °C. However, it dropped to
21 °C in January 1999.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
37.1 °C in January 2007.
Precipitation amounts to
120 mm, distributed over 9 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
27.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
February is generally a warm to hot, muggy month. The average temperature is of
27.4 °C, with a minimum of
23.3 °C and a maximum of
31.6 °C.
On the coldest nights of the month, the temperature usually drops to around
21.5 °C. However, it dropped to
20.3 °C in February 1997.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
36.8 °C in February 2012.
Precipitation amounts to
180 mm, distributed over 13 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
17.5 kph.
The average sea temperature is of
28.2 °C. Therefore, the sea is pleasantly warm and allows long swims.
March is generally a warm to hot, muggy month. The average temperature is of
27.2 °C, with a minimum of
23.3 °C and a maximum of
31 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
19.9 °C in March 2005.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
36.3 °C in March 2010.
Precipitation amounts to
260 mm, distributed over 17 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
15.4 kph.
The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
April is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
23.2 °C and a maximum of
30.9 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
20.6 °C in April 2000.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
34.9 °C in April 1998.
Precipitation amounts to
270 mm, distributed over 17 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
13.9 kph.
The average sea temperature is of
28.7 °C. Therefore, the sea is pleasantly warm and allows long swims.
May is generally a warm to hot, muggy month. The average temperature is of
27.2 °C, with a minimum of
23 °C and a maximum of
31.3 °C.
On the coldest nights of the month, the temperature usually drops to around
21.5 °C. However, it dropped to
19.8 °C in May 1994.
On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
34.8 °C in May 1998.
Precipitation amounts to
175 mm, distributed over 12 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
15.9 kph.
The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
June, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
22.2 °C and a maximum of
31.7 °C.
On the coldest nights of the month, the temperature usually drops to around
20 °C. However, it dropped to
18 °C in June 2018.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
35.3 °C in June 1998.
Precipitation amounts to
50 mm, distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
16.4 kph.
The average sea temperature is of
28.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a warm to hot month. The average temperature is of
27.1 °C, with a minimum of
21.8 °C and a maximum of
32.4 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
17.8 °C in July 1995.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
36.4 °C in July 1998.
Precipitation amounts to
40 mm, distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 68%.
The average wind speed is of
17.4 kph.
The average sea temperature is of
27.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
August is generally a very hot month. The average temperature is of
28 °C, with a minimum of
22.2 °C and a maximum of
33.8 °C.
On the coldest nights of the month, the temperature usually drops to around
20 °C. However, it dropped to
18.6 °C in August 2017.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
37.2 °C in August 2005.
Precipitation amounts to only
4.3 mm, and all occurs in one day.
The day lasts on average 12 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 65%.
The average wind speed is of
22.8 kph.
The average sea temperature is of
26.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot month. The average temperature is of
28.8 °C, with a minimum of
23.2 °C and a maximum of
34.5 °C.
On the coldest nights of the month, the temperature usually drops to around
21 °C. However, it dropped to
18 °C in September 1995.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
37.4 °C in September 2007.
Precipitation amounts to only
1.1 mm, distributed over 0 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 64%.
The average wind speed is of
28 kph.
The average sea temperature is of
26.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a very hot month. The average temperature is of
29 °C, with a minimum of
23.8 °C and a maximum of
34.3 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
20.7 °C in October 1994.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
37.4 °C in October 1998.
Precipitation amounts to only
0.9 mm, distributed over 0 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 64%.
The average wind speed is of
29.6 kph.
The average sea temperature is of
26.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
November, the hottest month of the year, is generally a very hot month. The average temperature is of
29 °C, with a minimum of
24 °C and a maximum of
34.1 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
20.9 °C in November 2002.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
38.2 °C in November 1993.
Precipitation amounts to only
3.7 mm, distributed over 0 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 66%.
The average wind speed is of
30 kph.
The average sea temperature is of
27.2 °C. Therefore, the sea is pleasantly warm and allows long swims.
December, the hottest month of the year, is generally a very hot month. The average temperature is of
29 °C, with a minimum of
24.2 °C and a maximum of
33.7 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
21.5 °C in December 1996.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
36.6 °C in December 2005.
Precipitation amounts to
30 mm, distributed over 3 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 67%.
The average wind speed is of
26.7 kph.
The average sea temperature is of
27.6 °C. Therefore, the sea is pleasantly warm and allows long swims.