Climate averages 1991–2020
San Sebastián de los Reyes weather
in May.
A mild, fairly dry month: the 5th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in San Sebastián de los Reyes: daytime highs average 21.6°C and nights cool to about 9.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 37 mm of rain on roughly 7 days, which makes May a fairly dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 25 min on an average May day.
The nearest other city in this atlas is Alcobendas (2 km away). In May its highs average 21.7°C, about as warm as San Sebastián de los Reyes, with 37 mm of rain.
Among the 93 cities listed in Spain, San Sebastián de los Reyes ranks joint 54th of 93 for the warmest May highs and joint 37th of 93 for the driest May (rainfall, lowest first). The mean May high of those 93 cities is 21.8°C; San Sebastián de los Reyes is 0.2°C cooler than that mean.
From May to June, average highs rise by 5.8°C to 27.4°C, and monthly rainfall falls from 37 mm to 15 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Sebastián de los Reyes climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.3°C0.7°C | 0.7°C | 38 | 6.6 | 9.610 h |
| February | 11.2°C1.0°C | 1.0°C | 32 | 5.6 | 10.611 h |
| March | 14.8°C3.3°C | 3.3°C | 39 | 6.4 | 11.912 h |
| April | 17.3°C5.7°C | 5.7°C | 44 | 7.4 | 13.313 h |
| May, selected | 21.6°C9.5°C | 9.5°C | 37 | 6.6 | 14.414 h |
| June | 27.4°C14.3°C | 14.3°C | 15 | 3.2 | 15.015 h |
| July | 31.4°C17.5°C | 17.5°C | 6.3 | 1.4 | 14.815 h |
| August | 31.1°C17.4°C | 17.4°C | 8.1 | 2.0 | 13.814 h |
| September | 25.8°C13.6°C | 13.6°C | 20 | 3.8 | 12.513 h |
| October | 19.4°C9.2°C | 9.2°C | 58 | 7.3 | 11.211 h |
| November | 13.1°C4.5°C | 4.5°C | 53 | 6.9 | 10.010 h |
| December | 9.9°C1.7°C | 1.7°C | 43 | 6.8 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Alcobendas in MaySpain · 2 kmHigh 21.7°C · Low 9.6°C · 37 mm rain
- Chamartín in MaySpain · 11 kmHigh 21.4°C · Low 9.4°C · 37 mm rain
- Coslada in MaySpain · 16 kmHigh 22.7°C · Low 10.6°C · 42 mm rain
- Madrid in MaySpain · 17 kmHigh 22.3°C · Low 10.2°C · 37 mm rain
- Torrejón de Ardoz in MaySpain · 17 kmHigh 22.4°C · Low 10.4°C · 42 mm rain
- Pozuelo de Alarcón in MaySpain · 21 kmHigh 21.8°C · Low 10.0°C · 37 mm rain
- Las Rozas de Madrid in MaySpain · 22 kmHigh 21.2°C · Low 9.4°C · 37 mm rain
- Alcalá de Henares in MaySpain · 24 kmHigh 22.4°C · Low 10.3°C · 50 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Sebastián de los Reyes) is explained once on the San Sebastián de los Reyes year overview and on the Sources, method and limits page.
Madrid, Chamartín and Alcobendas lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.