Mexico · 1991–2020

Best time to visit
San Bernardino.

October leads for comfortable weather in San Bernardino: typically 25.2°C by day, 8.8°C at night, with 46 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high25.2°C

Typical low8.8°C

Rain in October46 mm

Comfort

October

October · November · January

81climate match

Beach

May

May · April · March

66climate match

Outdoors

November

November · October · December

77climate match

The weakest month is July, scoring 66 against October’s 81 — 118 mm of rain falls, and rain falls on 14 days.

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

7824.6° / 3.8°

Feb

7426.4° / 4.9°

Mar

7128.4° / 6.8°

Apr

7129.3° / 9.2°

May

7129.1° / 10.4°

Jun

6727.1° / 11.3°

Jul

6625.6° / 10.8°

Aug

6725.4° / 10.8°

Sep

7424.9° / 10.8°

Oct

8125.2° / 8.8°

Nov

7925.3° / 5.8°

Dec

7824.6° / 4.2°

Monthly climate evidence for San Bernardino — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	24.6°C	3.8°C	12 mm	1.7	11 h 04	78	Good coverage
February	26.4°C	4.9°C	9 mm	1.1	11 h 29	74	Good coverage
March	28.4°C	6.8°C	11 mm	2.2	11 h 59	71	Good coverage
April	29.3°C	9.2°C	28 mm	4.5	12 h 34	71	Good coverage
May	29.1°C	10.4°C	40 mm	6.3	13 h 03	71	Good coverage
June	27.1°C	11.3°C	94 mm	11.6	13 h 18	67	Good coverage
July	25.6°C	10.8°C	118 mm	13.7	13 h 12	66	Good coverage
August	25.4°C	10.8°C	117 mm	13.9	12 h 47	67	Good coverage
September	24.9°C	10.8°C	90 mm	12.1	12 h 14	74	Good coverage
October	25.2°C	8.8°C	46 mm	5.9	11 h 40	81	Good coverage
November	25.3°C	5.8°C	13 mm	1.9	11 h 11	79	Good coverage
December	24.6°C	4.2°C	6 mm	0.7	10 h 58	78	Good coverage

Records at CHAPINGO (DGE), 1952–2010
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	31.1°C3 Jan 1995	-8.9°C12 Jan 1956	52 mm10 Jan 1967	88 mm1958 · driest 0 mm in 1987	56
February	33.3°C23 Feb 1998	-7.2°C14 Feb 1960	38 mm3 Feb 2010	90 mm2010 · driest 0 mm in 1971	57
March	35.0°C13 Mar 2006	-3.3°C2 Mar 1974	41 mm4 Mar 1988	146 mm1954 · driest 0 mm in 1986	57
April	36.1°C14 Apr 1998	-1.7°C12 Apr 1971	45 mm4 Apr 2002	79 mm1952 · driest 0 mm in 1955	57
May	37.2°C9 May 1998	1.1°C6 May 1970	50 mm23 May 1959	156 mm1952 · driest 0 mm in 1995	56
June	35.0°C15 Jun 1998	4.4°C3 Jun 1966	57 mm5 Jun 1978	210 mm1978 · driest 29 mm in 1992	58
July	30.0°C8 Jul 1998	3.9°C14 Jul 1974	53 mm5 Jul 1966	223 mm1984 · driest 45 mm in 1962	56
August	30.0°C19 Aug 2001	1.7°C6 Aug 1981	56 mm13 Aug 1958	235 mm1969 · driest 36 mm in 1982	57
September	30.6°C30 Sep 1982	-1.7°C26 Sep 1975	61 mm26 Sep 1992	211 mm1998 · driest 16 mm in 1982	57
October	31.7°C22 Oct 2004	-3.3°C12 Oct 1952	84 mm14 Oct 1959	161 mm1959 · driest 0 mm in 1987	57
November	31.7°C28 Nov 2004	-5.0°C27 Nov 1961	28 mm13 Nov 2006	67 mm1992 · driest 0 mm in 1990	57
December	30.6°C28 Dec 1997	-6.7°C20 Dec 1954	29 mm30 Dec 1995	49 mm1995 · driest 0 mm in 1986	57

Typical days per month at CHAPINGO (DGE), 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	18	<1	2	<1
February	23	4	2	<1
March	29	11	<1	<1
April	29	16	0	<1
May	30	14	0	1
June	24	7	0	3
July	23	<1	0	4
August	23	<1	0	4
September	19	<1	0	3
October	21	1	<1	2
November	19	1	1	<1
December	16	<1	2	<1

How often, not how much — every day in CHAPINGO (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	87%	5%	1%	4%	20.5–25.3°C
February	91%	5%	<1%	1%	22.0–27.1°C
March	92%	8%	1%	5%	25.0–29.1°C
April	84%	16%	2%	17%	25.4–30.0°C
May	75%	24%	5%	28%	25.6–30.1°C
June	58%	41%	12%	62%	23.2–27.9°C
July	49%	51%	12%	75%	22.1–25.9°C
August	53%	47%	12%	69%	22.6–25.6°C
September	58%	40%	10%	53%	21.9–25.4°C
October	76%	19%	5%	19%	22.0–26.0°C
November	89%	6%	1%	3%	22.2–26.2°C
December	89%	3%	<1%	1%	20.7–25.4°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.

1952Each stripe is one year’s mean temperature against the 52-year average. Warmest: 1998. Coolest: 1956.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3519620
NOAA station: MXN00015170 · CHAPINGO (DGE)
Station distance: 1.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 19.48°, 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 CHAPINGO (DGE) is what differs

San Miguel Coatlinchán→Colonia Guadalupe Victoria→Colonia las Tijeras→Colonia Villas de Tolimpa→Valle de Tláloc (Colonia Valle de Tláloc)→Praderas de Tecuac→

Or put two places side by side: San Bernardino vs San Miguel Coatlinchán

Best time to visitSan Bernardino.

October

May

November

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San Bernardino.

The whole year,
without the guesswork.

Nearby, measured,
and named.