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

San Luis in May

The short of it: San Luis in May averages a high of 22 °C (72 °F) and a low of 15 °C (59 °F), with 1.0 mm (0.04 in) of rain and about 11 h 34 min of daylight. Rated 5 of 5 for a visit; the best months are November and May. Source: TerraClimate climate normals, 1991–2020.

Average high 22° · low 15° · rain 1.0 mm · daylight 11 h 34 min

✦✦✦✦✦ Recommended for a visit · best months: November & May

Thirty years of records give San Luis an average May high of 22°, a low of 15° and some 1.0 mm of rain. Much like April: highs about 22°, nights near 15°. Easy travelling weather. Rain is scarce, about 1.0 mm, the 5th wettest month.

The sun is up for about 11 h 34 min in mid-May, 17 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening. The Almanac rates May 5 of 5 for a visit; the finest months here are November and May.

Against its neighbours, San Luis runs warmer than most and drier than most in May. San Francisco De Borja, 1 km to the SSW, sees much the same highs.

May in San Luis, by the numbers

Warmth rank
7th warmest of 12
Rain rank
5th wettest of 12
Versus April
3° colder, 1.0 mm more rain
Versus June
2° warmer
Day–night spread
8°
Snow season
seldom any
Daylight, mid-month
11 h 34 min
Average wind
11 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
San Francisco De BorjaLima region1 km SSW22°15°1.0 mm
Santa Anita - Los FicusLima region4 km NE22°15°1.0 mm
LimaLima Province5 km NW22°15°3.0 mm
Jesus MariaLima region6 km W22°15°3.0 mm
San IsidroLima region6 km WSW22°16°4.0 mm
MirafloresLima region6 km SW22°15°2.0 mm
Santiago de SurcoLima region7 km SSW22°16°3.0 mm
BreñaLima region7 km WNW22°15°3.0 mm

The Almanac · San Luis Month by Month

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

Much like April: highs about 22°, nights near 15°. Easy travelling weather. Rain is scarce, about 1.0 mm, the 5th wettest month.

Climate of San Luis by month
MonthHighLowRainWindDaylightVisit
January26°19°1.0 mm14 km/h12 h 46 min✦✦✦✦✦
February27°19°1.0 mm13 km/h12 h 30 min✦✦✦✦✦
March27°19°1.0 mm12 km/h12 h 12 min✦✦✦✦✦
April25°17°0.0 mm12 km/h11 h 51 min✦✦✦✦✦
May22°15°1.0 mm11 km/h11 h 34 min✦✦✦✦✦
June20°14°6.0 mm10 km/h11 h 25 min✦✦✦✦✦
July19°13°7.0 mm10 km/h11 h 29 min✦✦✦✦✦
August19°13°7.0 mm11 km/h11 h 43 min✦✦✦✦✦
September20°13°4.0 mm13 km/h12 h 3 min✦✦✦✦✦
October21°14°1.0 mm13 km/h12 h 24 min✦✦✦✦✦
November22°15°1.0 mm14 km/h12 h 41 min✦✦✦✦✦
December24°17°0.0 mm14 km/h12 h 50 min✦✦✦✦✦

Questions Readers Ask about San Luis in May

Answered from the wire & the Almanac

What is the weather like in San Luis in May?

Days average 22 °C (72 °F) and nights 15 °C (59 °F), with about 1.0 mm (0.04 in) of rain over the month. Much like April: highs about 22°, nights near 15°. Easy travelling weather. Rain is scarce, about 1.0 mm, the 5th wettest month.

Is May a good time to visit San Luis?

The Almanac gives May 5 of 5 (recommended). The best months are November and May.

How long are the days in San Luis in May?

In mid-May the sun is up for about 11 h 34 min. The days are shortening — from 11 h 25 min in June to 12 h 50 min in December.

Does it snow in San Luis in May?

Hardly — May nights average 15 °C (59 °F), above freezing.

What should I pack for San Luis in May?

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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