Holbox weather by month
Holbox runs from about 24°C in February to 29°C in July, with June the wettest month at 318 mm.
warmest month
July
29°C
coolest month
February
24°C
wettest month
June
318 mm
worst air month
June
13 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 25°C | 47 mm | 283 h | 7 |
| February | 24°C | 18 mm | 306 h | 8 |
| March | 26°C | 6 mm | 363 h | 7 |
| April | 26°C | 10 mm | 359 h | 7 |
| May | 28°C | 0 mm | 393 h | 10 |
| June | 27°C | 318 mm | 285 h | 13 |
| July | 29°C | 124 mm | 349 h | 9 |
| August | 29°C | 45 mm | 359 h | 8 |
| September | 28°C | 250 mm | 319 h | 5 |
| October | 28°C | 162 mm | 288 h | 5 |
| November | 27°C | 41 mm | 318 h | 6 |
| December | 25°C | 34 mm | 297 h | 6 |
About 3,919 hours of sun a year. Roughly 104 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.