Joao Pessoa weather by month
Joao Pessoa runs from about 25°C in July to 28°C in January, with June the wettest month at 213 mm.
warmest month
January
28°C
coolest month
July
25°C
wettest month
June
213 mm
worst air month
September
10 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 28°C | 50 mm | 368 h | 8 |
| February | 28°C | 155 mm | 319 h | 7 |
| March | 28°C | 121 mm | 328 h | 6 |
| April | 27°C | 109 mm | 303 h | 6 |
| May | 27°C | 142 mm | 317 h | 6 |
| June | 26°C | 213 mm | 313 h | 7 |
| July | 25°C | 135 mm | 324 h | 7 |
| August | 25°C | 64 mm | 341 h | 7 |
| September | 25°C | 45 mm | 343 h | 10 |
| October | 26°C | 24 mm | 370 h | 9 |
| November | 27°C | 34 mm | 360 h | 8 |
| December | 27°C | 67 mm | 365 h | 8 |
About 4,051 hours of sun a year. Roughly 116 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.