
Sintra-Cascais Natural Park
- Annual mean
- 16 °C
- Warmest month
- August
- Wettest month
- November
Twelve-month atmospheric averages for temperature, precipitation, humidity, and daylight.
At the representative location for Arrábida Natural Park, monthly mean temperatures range from 10.5 to 23.6 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.

Analyzing the relationship between monthly temperature fluctuations and daily precipitation rates.
Compare long-term average temperatures, daily precipitation rates, and calculated daylight hours.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 10.5 °C1.3° to 18.6° | 2.1 mm/day | 82.3% | 4.4 m/s | 9.7 hours |
| February | 11.2 °C2.3° to 19.8° | 1.8 mm/day | 79.5% | 4.5 m/s | 10.6 hours |
| March | 13.5 °C4° to 24° | 1.7 mm/day | 75.1% | 4.5 m/s | 11.8 hours |
| April | 15.3 °C6.9° to 26.9° | 1.8 mm/day | 72.3% | 4.5 m/s | 13 hours |
| May | 18.2 °C8.7° to 31.3° | 1.4 mm/day | 68.3% | 4.5 m/s | 14.1 hours |
| June | 21.4 °C12.1° to 35.3° | 0.4 mm/day | 63.9% | 4.5 m/s | 14.6 hours |
| July | 23.3 °C13.9° to 37.7° | 0.1 mm/day | 61.1% | 4.8 m/s | 14.4 hours |
| August | 23.6 °C14.3° to 37.3° | 0.2 mm/day | 61.4% | 4.5 m/s | 13.5 hours |
| September | 21.5 °C12.7° to 34.6° | 1 mm/day | 66.5% | 4 m/s | 12.2 hours |
| October | 18.2 °C9.3° to 29.3° | 2.4 mm/day | 73.6% | 4.2 m/s | 10.9 hours |
| November | 13.9 °C5.2° to 23.5° | 2.8 mm/day | 79.8% | 4.4 m/s | 9.9 hours |
| December | 11.4 °C1.9° to 19.1° | 2.6 mm/day | 83.5% | 4.6 m/s | 9.4 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 the warmest, coolest, wettest, and windiest periods based on long-term monthly averages
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly precipitation and temperature patterns across diverse regional geographies and protected settings.







Explore the map, landscapes, and protection details for Arrábida Natural Park.