The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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San Ildefonso Weather in September

San Ildefonso in September

The short of it: San Ildefonso in September averages a high of 22 °C (72 °F) and a low of 11 °C (51 °F), with 32 mm (1.3 in) of rain and about 12 h 24 min of daylight. Rated 5 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.

Average high 22° · low 11° · rain 32 mm · daylight 12 h 24 min

✦✦✦✦✦ Recommended for a visit · best months: September & June

September in San Ildefonso brings afternoons near 22° and nights around 11°, with about 32 mm of rain over the month. The year turns hard here: highs drop 5° from August to about 22°, with nights near 11°. Rain is modest, about 32 mm, the 9th wettest month.

The sun is up for about 12 h 24 min in mid-September, 83 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening. The Almanac rates September 5 of 5 for a visit; it is the best month of the year to come.

Against its neighbours, San Ildefonso runs cooler than most and wetter than most in September. Segovia, 11 km to the WNW, is 1° warmer by day.

September in San Ildefonso, by the numbers

Warmth rank
4th warmest of 12
Rain rank
9th wettest of 12
Versus August
5° colder, 16 mm more rain
Versus October
7° warmer
Day–night spread
12°
Snow season
seldom any
Daylight, mid-month
12 h 24 min
Average wind
9 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
SegoviaCastille and León11 km WNW24°11°28 mm
Collado-VillalbaMadrid30 km S25°12°28 mm
Colmenar ViejoMadrid34 km SE27°12°27 mm
Las Rozas de MadridMadrid47 km SSE27°14°25 mm
MajadahondaMadrid49 km SSE27°14°25 mm
AlcobendasMadrid50 km SE27°13°26 mm
San Sebastián de los ReyesMadrid50 km SE27°13°26 mm
Fuencarral-El PardoMadrid51 km SSE27°14°25 mm

The Almanac · San Ildefonso Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Recommended
The Almanac Speaks
September
✦✦✦✦✦

The year turns hard here: highs drop 5° from August to about 22°, with nights near 11°. Rain is modest, about 32 mm, the 9th wettest month.

Climate of San Ildefonso by month
MonthHighLowRainWindDaylightVisit
January6°-1°45 mm9 km/h9 h 32 min✦✦✦
February8°-1°36 mm10 km/h10 h 35 min✦✦✦
March12°2°42 mm11 km/h11 h 49 min✦✦✦✦
April14°4°55 mm11 km/h13 h 15 min✦✦✦
May19°7°56 mm10 km/h14 h 27 min✦✦✦✦
June24°12°26 mm10 km/h15 h 6 min✦✦✦✦✦
July27°15°12 mm10 km/h14 h 50 min✦✦✦✦✦
August27°15°16 mm9 km/h13 h 47 min✦✦✦✦✦
September22°11°32 mm9 km/h12 h 24 min✦✦✦✦✦
October16°8°68 mm10 km/h11 h 2 min✦✦✦
November10°2°64 mm10 km/h9 h 50 min✦✦
December7°0°51 mm10 km/h9 h 15 min✦✦

Questions Readers Ask about San Ildefonso in September

Answered from the wire & the Almanac

What is the weather like in San Ildefonso in September?

Days average 22 °C (72 °F) and nights 11 °C (51 °F), with about 32 mm (1.3 in) of rain over the month. The year turns hard here: highs drop 5° from August to about 22°, with nights near 11°. Rain is modest, about 32 mm, the 9th wettest month.

Is September a good time to visit San Ildefonso?

The Almanac gives September 5 of 5 (recommended). It is the best month of the year to visit.

How long are the days in San Ildefonso in September?

In mid-September the sun is up for about 12 h 24 min. The days are shortening — from 9 h 15 min in December to 15 h 6 min in June.

Does it snow in San Ildefonso in September?

Hardly — September nights average 11 °C (51 °F), above freezing.

What should I pack for San Ildefonso in September?

Light clothes and a jacket for the evening.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor
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