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

Hermosillo in August

The short of it: Hermosillo in August averages a high of 40 °C (104 °F) and a low of 25 °C (77 °F), with 63 mm (2.5 in) of rain and about 13 h 11 min of daylight. Rated 2 of 5 for a visit; the best months are December and January. Source: TerraClimate climate normals, 1991–2020.

Average high 40° · low 25° · rain 63 mm · daylight 13 h 11 min

✦✦ Travel with care for a visit · best months: December & January

Thirty years of records give Hermosillo an average August high of 40°, a low of 25° and some 63 mm of rain. Days run hot, near 40° in the afternoon; ride early and rest at noon. Wet spells are common — about 63 mm, the 2nd wettest month.

The sun is up for about 13 h 11 min in mid-August, 39 minutes less than a month before.

For the traveller: pack linen, a wide hat and water, and an oilskin besides. The Almanac rates August 2 of 5 for a visit; the finest months here are December and January.

Against its neighbours, Hermosillo runs warmer than most and drier than most in August. La Victoria, 8 km to the ENE, sees much the same highs.

August in Hermosillo, by the numbers

Warmth rank
2nd warmest of 12
Rain rank
2nd wettest of 12
Versus July
about the same, 9.0 mm less rain
Versus September
2° warmer
Day–night spread
15°
Snow season
seldom any
Daylight, mid-month
13 h 11 min
Average wind
7 km/h

Neighbouring Towns

August averages · distance by the crow’s flight
TownDistanceHighLowRain
La VictoriaSonora8 km ENE40°25°68 mm
El Alamito BuenavistaSonora15 km NE40°25°72 mm
ZamoraSonora21 km NNE40°24°74 mm
Molino de CamouSonora24 km ENE40°25°77 mm
Las Mercedes [Agropecuaria]Sonora31 km N39°24°76 mm
PesqueiraSonora33 km NNE39°24°77 mm
Alejandro Carrillo MarcorSonora41 km WSW40°25°44 mm
El TriunfoSonora53 km WSW40°25°39 mm

The Almanac · Hermosillo Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Travel with care
The Almanac Speaks
August
✦✦✦✦✦

Days run hot, near 40° in the afternoon; ride early and rest at noon. Wet spells are common — about 63 mm, the 2nd wettest month.

Climate of Hermosillo by month
MonthHighLowRainWindDaylightVisit
January26°6°14 mm6 km/h10 h 28 min✦✦✦✦✦
February27°7°13 mm7 km/h11 h 8 min✦✦✦✦✦
March30°9°4.0 mm8 km/h11 h 55 min✦✦✦✦
April33°11°2.0 mm9 km/h12 h 50 min✦✦✦
May37°15°2.0 mm9 km/h13 h 35 min✦✦✦
June40°20°8.0 mm9 km/h13 h 59 min✦✦✦
July40°25°72 mm9 km/h13 h 50 min✦
August40°25°63 mm7 km/h13 h 11 min✦✦
September39°23°52 mm6 km/h12 h 18 min✦✦
October35°16°18 mm6 km/h11 h 25 min✦✦✦
November30°10°10 mm6 km/h10 h 39 min✦✦✦✦
December25°6°17 mm6 km/h10 h 17 min✦✦✦✦✦

Questions Readers Ask about Hermosillo in August

Answered from the wire & the Almanac

What is the weather like in Hermosillo in August?

Days average 40 °C (104 °F) and nights 25 °C (77 °F), with about 63 mm (2.5 in) of rain over the month. Days run hot, near 40° in the afternoon; ride early and rest at noon. Wet spells are common — about 63 mm, the 2nd wettest month.

Is August a good time to visit Hermosillo?

The Almanac gives August 2 of 5 (travel with care). The best months are December and January.

How long are the days in Hermosillo in August?

In mid-August the sun is up for about 13 h 11 min. The days are shortening — from 10 h 17 min in December to 13 h 59 min in June.

Does it snow in Hermosillo in August?

Hardly — August nights average 25 °C (77 °F), above freezing.

What should I pack for Hermosillo in August?

Linen, a wide hat, sun cream and water, plus a good raincoat — it is a wet month.

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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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