Mexico · 1991–2020

Best time to visit
Hermosillo.

January leads for comfortable weather in Hermosillo: typically 24.2°C by day, 10.3°C at night, with 12 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high24.2°C

Typical low10.3°C

Rain in January12 mm

Comfort

January

January · December · February

91climate match

Beach

October

October · November · March

82climate match

Outdoors

December

December · January · February

88climate match

The weakest month is July, scoring 19 against January’s 91 — days average 39.1°C, 15° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

9124.2° / 10.3°

Feb

8925.3° / 11.1°

Mar

8128.8° / 13.2°

Apr

7232.1° / 15.6°

May

5136.3° / 19.4°

Jun

3339.7° / 23.7°

Jul

1939.1° / 25.7°

Aug

2238.3° / 25.5°

Sep

3337.5° / 24.6°

Oct

5833.9° / 19.9°

Nov

8428.6° / 14.3°

Dec

9023.7° / 10.1°

Monthly climate evidence for Hermosillo — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	24.2°C	10.3°C	12 mm	1.4	10 h 28	91	Good coverage
February	25.3°C	11.1°C	19 mm	1.9	11 h 07	89	Good coverage
March	28.8°C	13.2°C	6 mm	0.7	11 h 55	81	Good coverage
April	32.1°C	15.6°C	4 mm	0.3	12 h 50	72	Good coverage
May	36.3°C	19.4°C	2 mm	0.3	13 h 35	51	Good coverage
June	39.7°C	23.7°C	5 mm	0.8	13 h 59	33	Good coverage
July	39.1°C	25.7°C	94 mm	7.3	13 h 50	19	Good coverage
August	38.3°C	25.5°C	99 mm	6.9	13 h 11	22	Good coverage
September	37.5°C	24.6°C	65 mm	4.8	12 h 18	33	Good coverage
October	33.9°C	19.9°C	19 mm	1	11 h 25	58	Good coverage
November	28.6°C	14.3°C	22 mm	1.3	10 h 39	84	Good coverage
December	23.7°C	10.1°C	21 mm	1.7	10 h 18	90	Good coverage

Records at HERMOSILLO II (DGE), 1961–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	34.4°C31 Jan 2003	-3.3°C6 Jan 1971	63 mm4 Jan 1984	90 mm1961 · driest 0 mm in 1994	49
February	37.8°C23 Feb 2009	0.0°C3 Feb 2011	61 mm15 Feb 1995	89 mm1978 · driest 0 mm in 1961	49
March	40.0°C16 Mar 2007	2.8°C24 Mar 1969	27 mm6 Mar 2000	60 mm1992 · driest 0 mm in 1997	48
April	41.1°C27 Apr 1992	5.6°C3 Apr 1980	52 mm13 Apr 1993	52 mm1993 · driest 0 mm in 1998	47
May	45.6°C29 May 1969	5.6°C6 May 1969	37 mm26 May 1979	37 mm1979 · driest 0 mm in 1978	47
June	47.2°C23 Jun 1998	12.8°C10 Jun 1967	63 mm30 Jun 1986	63 mm1986 · driest 0 mm in 1978	47
July	47.2°C1 Jul 2011	17.8°C31 Jul 2000	75 mm16 Jul 1968	192 mm2006 · driest 26 mm in 1965	48
August	45.6°C2 Aug 2011	18.3°C1 Aug 2000	142 mm23 Aug 1992	239 mm1992 · driest 7 mm in 1981	48
September	45.0°C1 Sep 1970	15.0°C9 Sep 2012	119 mm20 Sep 1988	163 mm2006 · driest 0 mm in 1972	48
October	43.3°C11 Oct 1999	5.6°C30 Oct 1971	126 mm8 Oct 2000	234 mm2000 · driest 0 mm in 2011	48
November	38.9°C1 Nov 2008	2.8°C21 Nov 1979	152 mm11 Nov 1994	171 mm1994 · driest 0 mm in 1992	48
December	33.3°C8 Dec 1981	0.0°C29 Dec 1966	69 mm5 Dec 1994	131 mm1994 · driest 0 mm in 1973	48

Typical days per month at HERMOSILLO II (DGE), 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	14	3	<1
February	16	5	<1
March	26	15	<1
April	29	23	<1
May	31	30	<1
June	30	30	0
July	31	31	3
August	31	31	3
September	30	30	2
October	30	26	<1
November	25	13	<1
December	13	2	<1

How often, not how much — every day in HERMOSILLO II (DGE)’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	81%	6%	2%	3%	21.1–26.8°C
February	89%	6%	2%	4%	23.0–27.8°C
March	96%	3%	<1%	<1%	25.2–30.7°C
April	98%	1%	<1%	0%	29.1–33.7°C
May	99%	1%	<1%	<1%	33.1–37.8°C
June	98%	2%	<1%	3%	38.2–40.5°C
July	76%	24%	9%	25%	37.0–40.4°C
August	78%	22%	9%	21%	36.3–39.7°C
September	87%	13%	6%	5%	35.4–39.0°C
October	96%	4%	1%	<1%	32.0–35.8°C
November	95%	4%	1%	2%	26.2–30.8°C
December	81%	7%	2%	3%	21.1–26.4°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1966Each stripe is one year’s mean temperature against the 44-year average. Warmest: 2009. Coolest: 1975.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4004898
NOAA station: MXN00026139 · HERMOSILLO II (DGE)
Station distance: 1.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 29.09°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from HERMOSILLO II (DGE) is what differs

La Victoria→El Alamito Buenavista→Centro de Readaptación Social Dos→El Realito→La Yesca→Instituto de Tratamiento y Aplicación para Ad→

Or put two places side by side: Hermosillo vs La Victoria

Best time to visitHermosillo.