Climate averages 1991–2020

San Sebastián de los Reyes weather
in July.

A hot, very dry month: the warmest and the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 31.4°C Daytime mean, July
Average low 17.5°C Night-time mean, July
Rainfall 6.3 mm 1 day with ≥1 mm
Daylight 15 h Sunrise to sunset, per day
Every month in San Sebastián de los Reyes · average highYear overview

July is a hot month in San Sebastián de los Reyes: daytime highs average 31.4°C and nights cool to about 17.5°C. By daytime temperature it is the warmest month of the year.

Expect about 6.3 mm of rain on roughly 1 day, which makes July a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 46 min on an average July day.

The nearest other city in this atlas is Alcobendas (2 km away). In July its highs average 31.6°C, about as warm as San Sebastián de los Reyes, with 6.3 mm of rain.

Among the 93 cities listed in Spain, San Sebastián de los Reyes ranks 33rd of 93 for the warmest July highs and joint 38th of 93 for the driest July (rainfall, lowest first). The mean July high of those 93 cities is 29.2°C; San Sebastián de los Reyes is 2.3°C warmer than that mean.

From July to August, average highs fall by 0.3°C to 31.1°C, and monthly rainfall rises from 6.3 mm to 8.1 mm.

The annual picture

July in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages 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

1991–2020
Monthly climate averages for San Sebastián de los Reyes, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.3°C0.7°C0.7°C386.69.610 h
February 11.2°C1.0°C1.0°C325.610.611 h
March 14.8°C3.3°C3.3°C396.411.912 h
April 17.3°C5.7°C5.7°C447.413.313 h
May 21.6°C9.5°C9.5°C376.614.414 h
June 27.4°C14.3°C14.3°C153.215.015 h
July, selected 31.4°C17.5°C17.5°C6.31.414.815 h
August 31.1°C17.4°C17.4°C8.12.013.814 h
September 25.8°C13.6°C13.6°C203.812.513 h
October 19.4°C9.2°C9.2°C587.311.211 h
November 13.1°C4.5°C4.5°C536.910.010 h
December 9.9°C1.7°C1.7°C436.89.39 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

July in nearby cities

Distance from San Sebastián de los Reyes

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 limits

How 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.