Mexico · 1991–2020

Best time to visit
San Fermín.

January leads for comfortable weather in San Fermín: typically 24.2°C by day, 5.7°C at night, with 21 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high24.2°C

Typical low5.7°C

Rain in January21 mm

Comfort

January

January · December · February

82climate match

Beach

September

September · October · June

67climate match

Outdoors

December

December · January · February

82climate match

The weakest month is July, scoring 24 against January’s 82 — days average 36.8°C, 13° 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

8224.2° / 5.7°

Feb

8025° / 5.7°

Mar

7327.8° / 7.1°

Apr

6631.1° / 9.1°

May

6035.1° / 12.9°

Jun

4538.7° / 18.6°

Jul

2436.8° / 21.7°

Aug

3335.7° / 21.2°

Sep

4735.5° / 19.4°

Oct

6833° / 13.6°

Nov

7428.3° / 8.5°

Dec

8123.4° / 5.4°

Monthly climate evidence for San Fermín — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	24.2°C	5.7°C	21 mm	1.6	10 h 29	82	Good coverage
February	25°C	5.7°C	21 mm	2	11 h 08	80	Good coverage
March	27.8°C	7.1°C	8 mm	0.7	11 h 55	73	Good coverage
April	31.1°C	9.1°C	2 mm	0.3	12 h 49	66	Good coverage
May	35.1°C	12.9°C	2 mm	0.4	13 h 34	60	Good coverage
June	38.7°C	18.6°C	15 mm	1.5	13 h 59	45	Good coverage
July	36.8°C	21.7°C	143 mm	10.7	13 h 49	24	Good coverage
August	35.7°C	21.2°C	121 mm	8.7	13 h 11	33	Good coverage
September	35.5°C	19.4°C	73 mm	5	12 h 18	47	Good coverage
October	33°C	13.6°C	15 mm	1.8	11 h 25	68	Good coverage
November	28.3°C	8.5°C	20 mm	1.8	10 h 40	74	Good coverage
December	23.4°C	5.4°C	28 mm	1.7	10 h 18	81	Good coverage

Records at MAZATAN, 1961–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.6°C14 Jan 2000	-11.1°C4 Jan 1971	60 mm14 Jan 2004	107 mm1961 · driest 0 mm in 2011	42
February	38.9°C23 Feb 2009	-8.3°C28 Feb 1971	48 mm11 Feb 2005	91 mm2005 · driest 0 mm in 1972	41
March	38.9°C14 Mar 2013	-6.7°C4 Mar 1977	43 mm14 Mar 2005	75 mm1968 · driest 0 mm in 1995	41
April	42.8°C19 Apr 1989	-4.4°C8 Apr 1975	18 mm3 Apr 1997	22 mm1997 · driest 0 mm in 1983	43
May	45.0°C21 May 2012	0.0°C1 May 1967	32 mm30 May 1972	81 mm1972 · driest 0 mm in 1991	41
June	46.7°C27 Jun 2008	6.1°C4 Jun 1971	61 mm27 Jun 1962	116 mm2000 · driest 0 mm in 1989	40
July	45.6°C13 Jul 1987	11.7°C29 Jul 1973	94 mm6 Jul 1967	280 mm1967 · driest 88 mm in 1994	40
August	45.0°C25 Aug 2001	11.1°C29 Aug 1970	120 mm13 Aug 1990	296 mm1966 · driest 11 mm in 2001	39
September	45.0°C7 Sep 2000	7.8°C30 Sep 1965	144 mm19 Sep 1988	169 mm2008 · driest 1 mm in 2001	40
October	43.3°C4 Oct 1999	0.0°C26 Oct 1971	65 mm1 Oct 1976	85 mm1972 · driest 0 mm in 2012	41
November	38.9°C11 Nov 1999	-7.2°C29 Nov 1968	81 mm13 Nov 2011	118 mm2011 · driest 0 mm in 1996	41
December	35.0°C29 Dec 1998	-8.3°C22 Dec 1968	75 mm5 Dec 1994	147 mm1994 · driest 0 mm in 1973	38

Typical days per month at MAZATAN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	15	4	2	<1
February	15	6	1	<1
March	23	13	<1	<1
April	26	19	0	<1
May	29	26	0	0
June	28	28	0	<1
July	29	29	0	5
August	29	28	0	3
September	28	27	0	2
October	29	23	0	<1
November	22	13	<1	<1
December	13	3	2	<1

How often, not how much — every day in MAZATAN’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	72%	6%	3%	4%	19.1–27.1°C
February	78%	7%	2%	6%	20.2–28.2°C
March	88%	3%	<1%	<1%	21.7–30.3°C
April	96%	1%	<1%	0%	25.5–33.7°C
May	99%	1%	<1%	1%	30.3–37.8°C
June	94%	6%	2%	9%	33.9–40.2°C
July	62%	37%	17%	53%	31.8–38.7°C
August	71%	29%	14%	32%	30.7–37.5°C
September	84%	16%	8%	10%	29.9–37.3°C
October	93%	6%	2%	4%	26.6–35.1°C
November	88%	5%	2%	3%	23.2–30.9°C
December	70%	7%	3%	5%	18.7–25.3°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.

1961Each stripe is one year’s mean temperature against the 28-year average. Warmest: 1962. Coolest: 1975.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3987196
NOAA station: MXN00026052 · MAZATAN
Station distance: 11.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 28.90°, 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 MAZATAN is what differs

Mazatán→Nacori Grande→Cobachi→Adivino→El Porvenir→Santa Eduwiges→

Or put two places side by side: San Fermín vs Mazatán

Best time to visitSan Fermín.