Bilbao in August
In August, Bilbao averages 25°C (77°F) during the day and 17°C (63°F) at night, with around 10 days of rain (56 mm total).
Peak seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
August offers comfortable temperatures in Bilbao, with some rain to plan around.
How August compares to the rest of the year in Bilbao
August is one of the warmest months in Bilbao (1st of 12) and one of the driest months (12th of 12). Daytime temperature runs 6°C above the annual average (19°C). August runs 1°C warmer than July (24°C) and cools 1°C in September (24°C).
August sunrise & sunset in Bilbao
Times shown for Bilbao local time (Europe/Madrid), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Bilbao — August
Golden-hour and blue-hour windows for the 15th of August, in Bilbao's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Bilbao in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Peak season) and Bilbao's popularity.
Crowds & pricing — August in Bilbao
Bilbao is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.
Why this tier: excellent tourism weather Northern Hemisphere summer holidays
Sun & mosquito risk — August in Bilbao
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Bilbao in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 12°C / 54°F | 6°C / 43°F | 147 mm | 16 | — |
| February | 14°C / 57°F | 6°C / 43°F | 124 mm | 15 | — |
| March | 15°C / 59°F | 7°C / 45°F | 110 mm | 16 | — |
| April | 17°C / 63°F | 9°C / 48°F | 82 mm | 14 | — |
| May | 20°C / 67°F | 11°C / 53°F | 72 mm | 14 | — |
| June | 23°C / 73°F | 15°C / 59°F | 69 mm | 12 | — |
| July | 24°C / 76°F | 17°C / 62°F | 46 mm | 10 | — |
| August | 25°C / 77°F | 17°C / 63°F | 56 mm | 10 | — |
| September | 24°C / 75°F | 15°C / 60°F | 68 mm | 11 | — |
| October | 21°C / 70°F | 13°C / 56°F | 87 mm | 12 | — |
| November | 16°C / 61°F | 10°C / 49°F | 160 mm | 17 | — |
| December | 14°C / 57°F | 8°C / 46°F | 125 mm | 15 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Bilbao in August →
Frequently asked questions
How hot is Bilbao in August?
In August, Bilbao averages a high of 25°C (77°F) and a low of 17°C (63°F) — generally warm.
Does it rain a lot in Bilbao in August?
August can be fairly wet in Bilbao, with about 10 rainy days on average.
Is August a good time to visit Bilbao?
August is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Bilbao in August?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full August packing list for Bilbao for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.