Byblos weather by month
Byblos runs from about 15°C in February to 29°C in July, with January the wettest month at 295 mm.
warmest month
July
29°C
coolest month
February
15°C
wettest month
January
295 mm
worst air month
April
21 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 15°C | 295 mm | 205 h | 18 |
| February | 15°C | 101 mm | 238 h | 16 |
| March | 17°C | 143 mm | 310 h | 16 |
| April | 22°C | 52 mm | 354 h | 21 |
| May | 22°C | 71 mm | 384 h | 18 |
| June | 28°C | 4 mm | 406 h | 19 |
| July | 29°C | 1 mm | 418 h | 16 |
| August | 29°C | 1 mm | 400 h | 17 |
| September | 27°C | 20 mm | 344 h | 18 |
| October | 24°C | 12 mm | 335 h | 14 |
| November | 19°C | 75 mm | 262 h | 20 |
| December | 16°C | 89 mm | 248 h | 16 |
About 3,904 hours of sun a year. Roughly 86 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.