
Valles del Jubera, Leza, Cidacos y Alhama
- Annual mean
- 11.9 °C
- Warmest month
- August
- Wettest month
- April
Twelve-month climatology profile for a representative point within the biosphere reserve boundary.
Annual rhythm of atmospheric conditions at Reserva de la biosfera de Urdaibai, based on NASA POWER records from 1991 to 2020. This data details average monthly temperature ranges, daily precipitation rates, relative humidity, wind speed, and daylight hours at a single representative coordinate. The figures provide a long-term climatological reference rather than current weather forecasts or real-time conditions.

Average monthly temperature ranges and daily precipitation rates across twelve months for Reserva de la biosfera de Urdaibai
Analyze average daily precipitation, temperature bounds, wind speed, relative humidity, and daylight hours across the year
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 9.8 °C4.3° to 15.8° | 3.7 mm/day | 79.7% | 5.9 m/s | 9.2 hours |
| February | 9.7 °C4.4° to 16.5° | 3.2 mm/day | 78.6% | 5.7 m/s | 10.3 hours |
| March | 11.2 °C6° to 18.8° | 2.7 mm/day | 78.6% | 5.3 m/s | 11.7 hours |
| April | 12.5 °C7.5° to 20.8° | 2.9 mm/day | 79% | 4.9 m/s | 13.2 hours |
| May | 15.2 °C10.1° to 24° | 2.2 mm/day | 79.4% | 4.3 m/s | 14.5 hours |
| June | 18 °C13.4° to 27.3° | 2 mm/day | 79.4% | 4 m/s | 15.2 hours |
| July | 20.2 °C16.1° to 29.3° | 1.4 mm/day | 77.6% | 3.9 m/s | 14.9 hours |
| August | 21.1 °C17.1° to 29.6° | 1.4 mm/day | 74.6% | 3.9 m/s | 13.7 hours |
| September | 19.5 °C15° to 27.5° | 2.3 mm/day | 73.5% | 4.3 m/s | 12.3 hours |
| October | 16.7 °C11.2° to 24.4° | 3.3 mm/day | 75% | 5 m/s | 10.7 hours |
| November | 12.9 °C7.7° to 19.9° | 4.9 mm/day | 78.2% | 5.9 m/s | 9.5 hours |
| December | 10.7 °C5° to 16.6° | 3.8 mm/day | 79.6% | 6.1 m/s | 8.8 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 twelve monthly temperature, precipitation, wind, and daylight averages
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze long term monthly temperature, precipitation, and daylight patterns across distinct protected landscapes.







Analyze the protected ecosystems and mapped terrain of this Basque biosphere reserve through MoriAtlas. Examine how the Oka River estuary, limestone hills, and Atlantic coastal cliffs create a distinct protected zone of international importance for regional geography and conservation.