Climate & archive — San-Sebastyan 📅
🗄 45 years of observations📡 ERA5 data🏆 records since 1981
Actual day-by-day weather, records, monthly climate and “on this day before”.
🔎 Weather for a date or period
Actual day-by-day weather for the selected period (ERA5). Up to 1 year.
📆 On this day before
Data for previous years is being prepared.
🗓 Monthly climate in San-Sebastyan
| Month | Day | Night | Precip |
|---|---|---|---|
| January | +12° | +6° | 187 mm |
| February | +14° | +7° | 155 mm |
| March | +15° | +8° | 152 mm |
| April | +17° | +10° | 117 mm |
| May | +19° | +12° | 132 mm |
| June | +22° | +16° | 129 mm |
| July | +24° | +18° | 77 mm |
| August | +25° | +18° | 108 mm |
| September | +23° | +16° | 141 mm |
| October | +21° | +14° | 139 mm |
| November | +16° | +10° | 219 mm |
| December | +14° | +8° | 183 mm |
📊
Daily records and archive in San-Sebastyan are being collected (ERA5) — they will appear after the next cycle.
📒 For school and home
Weather diary
ready-made observation table for a month — for school
Weather for the month
August calendar: forecast + climate normal
City water
Celtic Sea +25° — where to swim
FAQ about the weather archive in San-Sebastyan ❓
What was the weather in San-Sebastyan on a specific date?
Pick a date or range in the form above — we show actual day-by-day weather (ERA5 reanalysis, up to a year back). For today’s date in past years see “On this day before”.
What's the typical weather in San-Sebastyan in August?
On average +25° by day, +18° at night, precipitation about 108 mm (ERA5 climate normal).
Since what year is the weather archive in San-Sebastyan kept?
Climate normals and records come from the ERA5 reanalysis. Actual day-by-day weather is available for the last year.
Climate and weather archive in San-Sebastyan
Monthly climate normals in San-Sebastyan (average day and night temperatures, precipitation) are computed from the ERA5 reanalysis. The observation archive accrues from launch. Data: Open-Meteo (ERA5).