Sayulita weather by month
Sayulita runs from about 23°C in March to 28°C in August, with July the wettest month at 164 mm.
warmest month
August
28°C
coolest month
March
23°C
wettest month
July
164 mm
worst air month
May
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 23°C | 10 mm | 289 h | 10 |
| February | 23°C | 77 mm | 268 h | 9 |
| March | 23°C | 2 mm | 352 h | 10 |
| April | 23°C | 2 mm | 350 h | 8 |
| May | 25°C | 0 mm | 365 h | 11 |
| June | 27°C | 106 mm | 277 h | 10 |
| July | 28°C | 164 mm | 316 h | 9 |
| August | 28°C | 158 mm | 299 h | 8 |
| September | 28°C | 153 mm | 293 h | 6 |
| October | 28°C | 99 mm | 319 h | 7 |
| November | 26°C | 28 mm | 307 h | 9 |
| December | 24°C | 3 mm | 311 h | 10 |
About 3,746 hours of sun a year. Roughly 80 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.