Monteverde weather by month
Monteverde runs from about 18°C in December to 21°C in May, with November the wettest month at 756 mm.
warmest month
May
21°C
coolest month
December
18°C
wettest month
November
756 mm
worst air month
May
6 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 18°C | 72 mm | 279 h | 3 |
| February | 18°C | 124 mm | 264 h | 4 |
| March | 20°C | 33 mm | 343 h | 5 |
| April | 20°C | 72 mm | 304 h | 5 |
| May | 21°C | 176 mm | 303 h | 6 |
| June | 20°C | 464 mm | 195 h | 5 |
| July | 19°C | 307 mm | 201 h | 4 |
| August | 19°C | 138 mm | 268 h | 6 |
| September | 19°C | 324 mm | 208 h | 5 |
| October | 19°C | 269 mm | 201 h | 4 |
| November | 18°C | 756 mm | 126 h | 2 |
| December | 18°C | 369 mm | 151 h | 3 |
About 2,843 hours of sun a year. Roughly 238 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 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.