Dec · Jan · Feb
Winter (mild + wet): rain and wind shape comfort
Avg low 4–7°C / high 10–13°C · Rainy days: 10–16 / ~90–160 mm
- • Frequent rain/drizzle can keep a damp-cool feel around.
- • Wind can drop perceived temperature quickly.
- • Shorter daylight often makes evenings feel cooler.
Suggested outfits
- · Waterproof jacket/coat (hooded)
- · Layers + light warmth
- · Water-resistant shoes with grip option
A note for travelers
In winter, ‘staying dry’ often matters more than the exact temperature.
Mar · Apr · May · Sep · Oct · Nov
Shoulder seasons (changeable): great on clear days, cooler when wet and windy
Avg low 8–14°C / high 13–22°C · Rainy days: 8–14 / ~70–150 mm
- • Sun feels comfortable, but overcast/rain can cool things fast.
- • Mornings and evenings often need a layer.
- • Autumn tends to run wetter than spring.
Suggested outfits
- · Thin waterproof/windbreaker
- · Layering pieces (long sleeves/knit)
- · Water-friendly bag/pouch
A note for travelers
Assume you’ll get caught in rain at least once—packing gets simpler.
Jun · Jul · Aug
Summer (warm, often breezy): pleasant midday, cooler evenings
Avg low 15–18°C / high 22–26°C · Rainy days: 5–10 / ~40–90 mm
- • Even in mid-summer, evenings can feel cool.
- • Rain doesn’t disappear completely—light waterproofing can help.
- • Humidity can make the same temperature feel heavier.
Suggested outfits
- · T-shirts/light long sleeves + thin outer layer
- · Light waterproof jacket option
- · Comfortable walking shoes
A note for travelers
Bilbao summer often rewards ‘light by day, one extra layer by night’.