
Alvão Natural Park
- Annual mean
- 12.9 °C
- Warmest month
- August
- Wettest month
- November
Twelve-month atmospheric overview covering temperature, precipitation, humidity, wind, and daylight.
Review long-term climate averages for Serra da Estrela Natural Park, Portugal, based on historical NASA POWER measurements from 1991 to 2020. This data provides a representative view of atmospheric patterns at a specific site within the protected area, detailing mean temperature, daily precipitation rates, relative humidity, wind speed, and daylight hours for every month of the year.

Tracking the relationship between monthly thermal ranges and average daily precipitation
Track seasonal shifts in temperature bounds, daily precipitation, wind speeds, and calculated daylight.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 4.9 °C-3° to 14.8° | 4.2 mm/day | 87.4% | 4 m/s | 9.5 hours |
| February | 6 °C-2.9° to 17.3° | 3.3 mm/day | 82.8% | 4 m/s | 10.4 hours |
| March | 8.7 °C-1.8° to 21° | 3.1 mm/day | 77.5% | 4.2 m/s | 11.7 hours |
| April | 10.8 °C0.2° to 24.6° | 3.4 mm/day | 75.2% | 4.1 m/s | 13.1 hours |
| May | 14.4 °C3° to 28.7° | 2.4 mm/day | 70.6% | 3.8 m/s | 14.3 hours |
| June | 18.5 °C6.8° to 32.6° | 0.9 mm/day | 63.9% | 3.6 m/s | 14.8 hours |
| July | 21.6 °C9° to 35.9° | 0.4 mm/day | 54% | 3.6 m/s | 14.6 hours |
| August | 22 °C9.6° to 36.3° | 0.6 mm/day | 50.4% | 3.6 m/s | 13.6 hours |
| September | 18.6 °C7.4° to 33.2° | 1.8 mm/day | 58.1% | 3.5 m/s | 12.2 hours |
| October | 13.6 °C3.2° to 26.5° | 4.4 mm/day | 72.9% | 3.8 m/s | 10.9 hours |
| November | 8.3 °C-0.7° to 19.2° | 4.7 mm/day | 85.3% | 4.1 m/s | 9.7 hours |
| December | 5.7 °C-3.1° to 15.3° | 4.5 mm/day | 88.4% | 4 m/s | 9.2 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing calculated monthly averages for temperature, precipitation, wind speed, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Contrast long-term monthly atmospheric patterns and seasonal rhythms across diverse geographic settings








Delve deeper into the protected landscape of Serra da Estrela Natural Park, understanding its place within Portugal's regional geography and its unique glacial terrain. Use our platform to trace the park's mapped boundaries and explore its surrounding natural context, expanding your atlas discovery of this significant Iberian mountain range.