Temperature
Very hot by day, warm at night.
95°Ftypical Aug high
Teresina is most comfortable in the drier months around May to July. Typical daytime highs run about 89-99°F year-round. The climate is hot and humid. Rainy season runs roughly December to May.

Very hot by day, warm at night.
One of the driest months, with very little rain.
Plenty of sun this month.
Very hot days, with humid stretches.
Predominantly clear skies.
Want a side-by-side climate view? Compare Teresina with Rio de Janeiro.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 27, 2026
Data & methodology