Mexico · 1991–2020

Best time to visit
Plan Chac.

December leads for comfortable weather in Plan Chac: typically 29°C by day, 15.1°C at night, with 36 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high29°C

Typical low15.1°C

Rain in December36 mm

Comfort

December

December · January · February

82climate match

Beach

December

December · November · January

82climate match

Outdoors

December

December · January · February

62climate match

The weakest month is September, scoring 20 against December’s 82 — days average 34.8°C, 11° above the 24°C the score treats as ideal, and 216 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

7930° / 14.3°

Feb

7332.1° / 14.8°

Mar

6134.6° / 16.5°

Apr

5136.2° / 18.2°

May

4036.6° / 19.8°

Jun

3135.7° / 20.7°

Jul

3135.6° / 20.1°

Aug

3035.2° / 20.2°

Sep

2034.8° / 20.4°

Oct

4532.3° / 19.4°

Nov

7230.4° / 16.9°

Dec

8229° / 15.1°

Monthly climate evidence for Plan Chac — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	30°C	14.3°C	35 mm	3.5	11 h 01	79	Good coverage
February	32.1°C	14.8°C	27 mm	2.4	11 h 27	73	Good coverage
March	34.6°C	16.5°C	43 mm	2	11 h 58	61	Good coverage
April	36.2°C	18.2°C	50 mm	3.9	12 h 35	51	Good coverage
May	36.6°C	19.8°C	88 mm	5.7	13 h 06	40	Good coverage
June	35.7°C	20.7°C	138 mm	9.5	13 h 22	31	Good coverage
July	35.6°C	20.1°C	137 mm	11.3	13 h 15	31	Good coverage
August	35.2°C	20.2°C	144 mm	12.4	12 h 50	30	Good coverage
September	34.8°C	20.4°C	216 mm	12.9	12 h 14	20	Good coverage
October	32.3°C	19.4°C	134 mm	9.9	11 h 39	45	Good coverage
November	30.4°C	16.9°C	51 mm	4.6	11 h 08	72	Good coverage
December	29°C	15.1°C	36 mm	4.1	10 h 54	82	Good coverage

Records at MUNA, 1958–2007
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	40.0°C5 Jan 1959	2.2°C28 Jan 2001	46 mm8 Jan 1991	102 mm1991 · driest 0 mm in 1981	45
February	42.8°C27 Feb 1959	2.8°C12 Feb 1973	59 mm20 Feb 1999	101 mm2002 · driest 0 mm in 1971	47
March	42.8°C7 Mar 1959	3.9°C26 Mar 1986	70 mm1 Mar 2006	110 mm1978 · driest 0 mm in 1979	46
April	42.8°C23 Apr 1960	6.7°C2 Apr 1984	60 mm20 Apr 1965	160 mm1994 · driest 0 mm in 1971	46
May	42.8°C8 May 1959	6.7°C2 May 1984	98 mm31 May 2003	293 mm1969 · driest 0 mm in 1975	46
June	41.7°C6 Jun 1960	10.6°C10 Jun 1970	150 mm2 Jun 1970	549 mm1970 · driest 20 mm in 1984	46
July	42.8°C3 Jul 1982	10.0°C30 Jul 1974	70 mm14 Jul 2004	321 mm1999 · driest 0 mm in 1980	47
August	40.0°C24 Aug 1995	11.7°C17 Aug 1968	75 mm22 Aug 1978	320 mm1975 · driest 20 mm in 1962	47
September	40.6°C19 Sep 1996	10.0°C7 Sep 1984	236 mm22 Sep 2002	694 mm2002 · driest 10 mm in 1994	47
October	39.4°C26 Oct 1997	7.8°C28 Oct 1965	120 mm31 Oct 1999	293 mm1995 · driest 10 mm in 1963	47
November	40.0°C1 Nov 1997	5.0°C28 Nov 1970	75 mm9 Nov 1975	159 mm1992 · driest 0 mm in 1970	48
December	40.0°C31 Dec 1958	1.7°C14 Dec 1973	90 mm15 Dec 1958	123 mm1958 · driest 0 mm in 1979	46

Typical days per month at MUNA, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	29	19	1
February	27	21	<1
March	30	29	1
April	29	28	2
May	31	30	3
June	29	29	4
July	31	31	5
August	31	31	4
September	30	29	6
October	31	26	4
November	28	19	1
December	29	14	1

How often, not how much — every day in MUNA’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	91%	8%	2%	4%	27.0–32.9°C
February	94%	6%	3%	3%	28.7–34.3°C
March	95%	5%	3%	2%	30.7–35.6°C
April	93%	7%	3%	5%	32.0–37.4°C
May	86%	14%	8%	15%	33.0–38.3°C
June	74%	26%	14%	29%	31.1–37.2°C
July	69%	31%	14%	40%	31.2–36.3°C
August	69%	31%	14%	41%	31.0–36.1°C
September	67%	33%	18%	39%	30.4–35.4°C
October	77%	23%	11%	23%	28.5–33.6°C
November	89%	11%	4%	8%	27.7–32.7°C
December	91%	9%	3%	5%	26.3–32.0°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.

1959Each stripe is one year’s mean temperature against the 38-year average. Warmest: 1998. Coolest: 1976.2006

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8867829
NOAA station: MXN00031021 · MUNA
Station distance: 8.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 20.45°, 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 MUNA is what differs

Muna→Opichén→Sacalum→San José Tipceh→San Antonio Sodzil→Yaxhá→

Or put two places side by side: Plan Chac vs Muna

Best time to visitPlan Chac.

December

December

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Plan Chac.

The whole year,
without the guesswork.

Nearby, measured,
and named.