Mexico · 1991–2020

Best time to visit
San José.

January leads for comfortable weather in San José: typically 28.4°C by day, 12.8°C at night, with 26 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high28.4°C

Typical low12.8°C

Rain in January26 mm

Comfort

January

January · February · December

81climate match

Beach

February

February · January · December

76climate match

Outdoors

January

January · February · December

69climate match

The weakest month is June, scoring 5 against January’s 81 — 615 mm of rain falls.

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

8128.4° / 12.8°

Feb

8128.5° / 12.8°

Mar

7228.2° / 13.5°

Apr

5927.7° / 14.6°

May

2626.9° / 15.3°

Jun

526° / 15.2°

Jul

2426.4° / 14.7°

Aug

1326.5° / 14.8°

Sep

525.9° / 14.8°

Oct

1926.4° / 14.6°

Nov

7027.7° / 13.7°

Dec

8028.4° / 13.1°

Monthly climate evidence for San José — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	28.4°C	12.8°C	26 mm	2.8	11 h 19	81	Good coverage
February	28.5°C	12.8°C	35 mm	2.6	11 h 38	81	Good coverage
March	28.2°C	13.5°C	92 mm	6.3	12 h 01	72	Good coverage
April	27.7°C	14.6°C	180 mm	11.1	12 h 27	59	Good coverage
May	26.9°C	15.3°C	380 mm	20	12 h 49	26	Good coverage
June	26°C	15.2°C	615 mm	24.6	13 h 01	5	Good coverage
July	26.4°C	14.7°C	410 mm	19.9	12 h 56	24	Good coverage
August	26.5°C	14.8°C	475 mm	21.5	12 h 38	13	Good coverage
September	25.9°C	14.8°C	638 mm	24.5	12 h 12	5	Good coverage
October	26.4°C	14.6°C	450 mm	19.4	11 h 46	19	Good coverage
November	27.7°C	13.7°C	120 mm	7.4	11 h 25	70	Good coverage
December	28.4°C	13.1°C	42 mm	3.5	11 h 14	80	Good coverage

Records at UNION JUAREZ, 1951–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	34.4°C5 Jan 1987	5.6°C19 Jan 1978	63 mm17 Jan 1974	212 mm1969 · driest 0 mm in 2003	60
February	35.6°C4 Feb 1988	7.8°C9 Feb 1992	85 mm5 Feb 1963	163 mm1963 · driest 0 mm in 1973	60
March	32.8°C1 Mar 1983	8.9°C18 Mar 1996	120 mm18 Mar 2008	464 mm2005 · driest 4 mm in 1994	60
April	33.9°C14 Apr 1987	8.9°C23 Apr 1971	195 mm10 Apr 1954	1192 mm1954 · driest 8 mm in 1984	58
May	33.3°C14 May 1981	10.6°C4 May 1978	210 mm13 May 1953	1188 mm1953 · driest 63 mm in 1961	60
June	32.8°C3 Jun 2001	10.0°C4 Jun 2001	205 mm14 Jun 1981	1347 mm1981 · driest 293 mm in 1998	58
July	33.9°C16 Jul 1961	10.0°C28 Jul 1957	240 mm17 Jul 1968	1494 mm1968 · driest 115 mm in 1977	57
August	31.7°C2 Aug 1986	11.1°C5 Aug 1972	190 mm22 Aug 1954	1216 mm1973 · driest 162 mm in 2009	57
September	30.6°C27 Sep 1979	10.0°C2 Sep 1969	174 mm20 Sep 1974	1139 mm1963 · driest 207 mm in 1972	59
October	33.9°C24 Oct 2001	10.0°C5 Oct 2004	330 mm5 Oct 2005	1096 mm1953 · driest 84 mm in 1974	57
November	31.7°C19 Nov 2007	9.4°C13 Nov 1971	114 mm16 Nov 1975	405 mm1998 · driest 16 mm in 1953	56
December	32.8°C11 Dec 1976	6.7°C25 Dec 1972	95 mm26 Dec 1995	250 mm1995 · driest 0 mm in 1993	57

Typical days per month at UNION JUAREZ, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	31	8	<1
February	28	8	1
March	31	9	2
April	30	5	5
May	29	2	11
June	26	<1	17
July	28	<1	12
August	29	1	13
September	26	<1	16
October	28	1	11
November	29	5	4
December	31	9	<1

How often, not how much — every day in UNION JUAREZ’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	90%	9%	3%	5%	24.3–29.0°C
February	90%	10%	4%	7%	24.6–29.1°C
March	81%	19%	8%	22%	25.3–29.0°C
April	65%	35%	17%	49%	25.0–28.5°C
May	38%	62%	35%	84%	24.6–27.6°C
June	17%	83%	57%	96%	24.0–26.4°C
July	30%	70%	41%	91%	24.7–27.2°C
August	30%	70%	44%	92%	24.6–27.1°C
September	17%	83%	56%	97%	24.0–26.7°C
October	35%	65%	39%	79%	24.3–27.2°C
November	71%	29%	13%	30%	23.9–28.3°C
December	89%	11%	4%	8%	24.2–28.9°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.

1951Each stripe is one year’s mean temperature against the 50-year average. Warmest: 1951. Coolest: 1956.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8868005
NOAA station: MXN00007172 · UNION JUAREZ
Station distance: 3.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 15.06°, 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 UNION JUAREZ is what differs

San Rafael Pie de la Cuesta→Unión Juárez→Córdova Matasanos→El Desenlace→Cerro del Carmen (Pico de Loro)→San Isidro→

Or put two places side by side: San José vs San Rafael Pie de la Cuesta

Best time to visitSan José.

January

February

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
San José.

The whole year,
without the guesswork.

Nearby, measured,
and named.