Guatemala · 1991–2020

Best time to visit
Cuilco.

December leads for comfortable weather in Cuilco: typically 26°C by day, 15.7°C at night, with 38 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high26°C

Typical low15.7°C

Rain in December38 mm

Comfort

December

December · January · February

92climate match

Beach

March

March · April · February

87climate match

Outdoors

December

December · January · February

71climate match

The weakest month is August, scoring 38 against December’s 92 — 236 mm of rain falls, and days average 29.5°C, 6° 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

9026.7° / 15.6°

Feb

8827° / 16.1°

Mar

8128.6° / 16.9°

Apr

6931.3° / 17.9°

May

6230.3° / 17.8°

Jun

4729.9° / 17.8°

Jul

5229.7° / 17.3°

Aug

3829.5° / 17.6°

Sep

4529.1° / 17.1°

Oct

4928.6° / 16.9°

Nov

8027.4° / 16.4°

Dec

9226° / 15.7°

Monthly climate evidence for Cuilco — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	26.7°C	15.6°C	18 mm	1.7	11 h 18	90	Good coverage
February	27°C	16.1°C	10 mm	0.6	11 h 37	88	Good coverage
March	28.6°C	16.9°C	7 mm	1.1	12 h 00	81	Good coverage
April	31.3°C	17.9°C	44 mm	3.6	12 h 28	69	Good coverage
May	30.3°C	17.8°C	88 mm	7.9	12 h 50	62	Good coverage
June	29.9°C	17.8°C	174 mm	12.8	13 h 02	47	Good coverage
July	29.7°C	17.3°C	152 mm	13	12 h 57	52	Good coverage
August	29.5°C	17.6°C	236 mm	15	12 h 38	38	Good coverage
September	29.1°C	17.1°C	213 mm	13.2	12 h 12	45	Good coverage
October	28.6°C	16.9°C	217 mm	10.4	11 h 46	49	Good coverage
November	27.4°C	16.4°C	73 mm	4.6	11 h 24	80	Good coverage
December	26°C	15.7°C	38 mm	3	11 h 13	92	Good coverage

Records at FRONTERA AMATENANGO, 1961–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	40.6°C14 Jan 2011	6.1°C5 Jan 2008	52 mm1 Jan 1998	189 mm1998 · driest 0 mm in 1962	41
February	38.9°C16 Feb 1982	7.8°C22 Feb 1972	63 mm16 Feb 1997	126 mm1997 · driest 0 mm in 1971	41
March	39.4°C15 Mar 1977	9.4°C3 Mar 2009	20 mm9 Mar 1981	38 mm1998 · driest 0 mm in 1972	40
April	44.4°C15 Apr 2003	10.6°C7 Apr 2001	24 mm15 Apr 2011	172 mm1996 · driest 0 mm in 1995	42
May	45.0°C15 May 2004	10.0°C11 May 2012	62 mm17 May 2002	236 mm2010 · driest 0 mm in 1995	41
June	42.2°C17 Jun 2004	12.8°C12 Jun 1998	140 mm2 Jun 1992	313 mm1976 · driest 51 mm in 2012	44
July	41.7°C24 Jul 2004	8.3°C31 Jul 2012	201 mm5 Jul 1970	401 mm1970 · driest 0 mm in 1998	41
August	42.8°C14 Aug 2004	11.7°C22 Aug 1966	97 mm27 Aug 1995	644 mm1997 · driest 35 mm in 2006	39
September	38.3°C13 Sep 1982	10.0°C8 Sep 1966	180 mm25 Sep 2000	458 mm1995 · driest 0 mm in 2007	42
October	37.8°C28 Oct 1986	10.0°C9 Oct 1966	180 mm2 Oct 2000	602 mm1998 · driest 9 mm in 1995	41
November	42.2°C19 Nov 2004	7.2°C28 Nov 2011	62 mm2 Nov 1997	429 mm1997 · driest 0 mm in 1966	41
December	38.3°C26 Dec 1986	5.0°C31 Dec 1962	50 mm11 Dec 1997	221 mm1997 · driest 0 mm in 2007	42

Typical days per month at FRONTERA AMATENANGO, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	22	5	<1
February	22	6	<1
March	26	13	<1
April	27	19	1
May	28	16	3
June	28	16	4
July	28	14	4
August	27	15	7
September	26	12	6
October	29	10	5
November	23	8	2
December	21	4	1

How often, not how much — every day in FRONTERA AMATENANGO’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	95%	3%	<1%	2%	25.0–31.2°C
February	96%	2%	1%	<1%	26.7–32.8°C
March	96%	2%	<1%	1%	27.2–35.1°C
April	95%	7%	3%	5%	29.1–36.1°C
May	76%	23%	9%	34%	28.5–35.4°C
June	51%	49%	24%	68%	27.7–32.3°C
July	52%	47%	22%	67%	27.4–32.6°C
August	51%	49%	24%	72%	27.2–32.3°C
September	51%	49%	26%	70%	26.8–32.1°C
October	67%	34%	17%	40%	26.1–32.0°C
November	85%	13%	5%	11%	25.2–32.3°C
December	92%	6%	3%	4%	24.2–31.7°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.

1962Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2004. Coolest: 1995.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3597802
NOAA station: MXN00007067 · FRONTERA AMATENANGO
Station distance: 16.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 15.41°, 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 FRONTERA AMATENANGO is what differs

Nuevo Amatenango→Veinte de Noviembre→Amatenango de la Frontera→Reforma→Nuevo Recuerdo→Valle Obregón→

Or put two places side by side: Cuilco vs Nuevo Amatenango

Best time to visitCuilco.

December

March

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Cuilco.

The whole year,
without the guesswork.

Nearby, measured,
and named.