Iquitos weather by month
Iquitos runs from about 26°C in July to 28°C in September, with April the wettest month at 298 mm.
warmest month
September
28°C
coolest month
July
26°C
wettest month
April
298 mm
worst air month
July
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 235 mm | 291 h | 8 |
| February | 27°C | 257 mm | 245 h | 9 |
| March | 27°C | 294 mm | 276 h | 11 |
| April | 27°C | 298 mm | 275 h | 8 |
| May | 26°C | 277 mm | 258 h | 7 |
| June | 26°C | 259 mm | 307 h | 8 |
| July | 26°C | 142 mm | 317 h | 11 |
| August | 27°C | 160 mm | 323 h | 11 |
| September | 28°C | 129 mm | 319 h | 9 |
| October | 28°C | 192 mm | 297 h | 9 |
| November | 27°C | 205 mm | 290 h | 8 |
| December | 27°C | 253 mm | 281 h | 9 |
About 3,479 hours of sun a year. Roughly 271 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.