For those seeking warm weather, the ideal time to visit Parnaiba is in October, January and February. During these months, temperatures typically soar to an average of 34.91 °C, and you'll find that September, August and October are the sunniest months, with an average of 80.89 hours of sunshine.
Conversely, if you favor cooler weather, consider planning your trip to Parnaiba in January, February or March. During this period, you can expect an average temperature of 22.58 °C.
For travelers indifferent to temperature but keen to steer clear of rain, it’s wise to avoid visiting during June, September and October, when the average precipitation in Parnaiba reaches 4.73 mm. Instead, consider the drier months of January, February and March, which feature significantly lower rainfall, averaging only 0 mm.