San Sebastián · Month comparison

May vs June

June ranks #1 overall vs May at #2. Pre-school-holiday peak — Jazz fest hasn't hit, but La Concha is finally swim-ready.

San Sebastián May — Plaza de la Constitución terrace lunch

May

#2 of 12 months

Best match

First sweet spot — La Concha walkable, terraces open, pintxos quality unchanged from summer.

  • 18°C and warm enough to sit out on Plaza de la Constitución terraces
  • Hotel rates still 40% below August
San Sebastián June — La Concha bay from Monte Igueldo

June

#1 of 12 months

Best match

Pre-school-holiday peak — Jazz fest hasn't hit, but La Concha is finally swim-ready.

  • San Juan night (23 Jun) — bonfires on Zurriola and Concha beaches
  • Mountain hiking in Pyrenees foothills at perfect 18°C
FactorMayJune
Weather score
8
9
Value score
7
6
Crowd score
7
6
Events score
8
9
Atmosphere
9
10
Avg high temp18°C21°C
Monthly rain95mm70mm
Daily sunshine6hrs7hrs

May trade-offs

  • 95mm rain still typical — bring layers
  • Sea at 14°C — only the brave swim

June trade-offs

  • Last week of June Jazz Festival prep already pushes rates 20%
  • Spanish schools out by month-end — Madrid weekenders arriving
Scores compare months within San Sebastián. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →