Puerto Rico · 1991–2020

Best time to visit
Magas Arriba.

January leads for comfortable weather in Magas Arriba: typically 26.4°C by day, 13.2°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high26.4°C

Typical low13.2°C

Rain in January72 mm

Comfort

January

January · February · December

79climate match

Beach

June

June · December · February

65climate match

Outdoors

February

February · January · December

63climate match

The weakest month is September, scoring 30 against January’s 79 — 291 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

7926.4° / 13.2°

Feb

7826.7° / 12.8°

Mar

6927° / 13.3°

Apr

5827.6° / 14.7°

May

4328.2° / 16.2°

Jun

6129.3° / 16.9°

Jul

5329.5° / 17°

Aug

4029.6° / 17.1°

Sep

3029.5° / 16.9°

Oct

3328.9° / 16.6°

Nov

5527.8° / 15.8°

Dec

7826.7° / 14.2°

Monthly climate evidence for Magas Arriba — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 19 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	26.4°C	13.2°C	72 mm	8.6	26.9°C	11 h 09	79	Strong coverage
February	26.7°C	12.8°C	66 mm	8	26.5°C	11 h 32	78	Strong coverage
March	27°C	13.3°C	118 mm	10.3	26.6°C	11 h 59	69	Strong coverage
April	27.6°C	14.7°C	188 mm	12.4	27.1°C	12 h 32	58	Strong coverage
May	28.2°C	16.2°C	256 mm	13.8	27.7°C	12 h 58	43	Strong coverage
June	29.3°C	16.9°C	120 mm	10.3	28.3°C	13 h 12	61	Strong coverage
July	29.5°C	17°C	155 mm	12.8	28.4°C	13 h 07	53	Strong coverage
August	29.6°C	17.1°C	228 mm	14.8	28.8°C	12 h 44	40	Strong coverage
September	29.5°C	16.9°C	291 mm	16.6	29.2°C	12 h 13	30	Strong coverage
October	28.9°C	16.6°C	290 mm	16.9	29.0°C	11 h 42	33	Strong coverage
November	27.8°C	15.8°C	185 mm	14.3	28.5°C	11 h 16	55	Strong coverage
December	26.7°C	14.2°C	82 mm	8.8	27.6°C	11 h 03	78	Strong coverage

What has changed

Magas Arriba runs +0.2°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.2

Feb

+0.1

Mar

0.0

Apr

+0.2

May

+0.5

Jun

+0.4

Jul

+0.5

Aug

+0.2

Sep

+0.4

Oct

-0.1

Nov

0.0

Dec

+0.1

January daytime highs, 2011–2025. Last recorded: 26.5°C.

Records at ADJUNTAS SUBSTN, 1970–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	31.7°C5 Jan 1987	5.0°C31 Jan 1990	93 mm14 Jan 1970	209 mm1970 · driest 1 mm in 2026	56
February	31.7°C25 Feb 1990	6.1°C2 Feb 1992	122 mm5 Feb 1998	182 mm1995 · driest 2 mm in 2026	56
March	32.2°C9 Mar 1984	4.4°C3 Mar 1993	109 mm9 Mar 1992	262 mm1989 · driest 2 mm in 2026	57
April	33.9°C26 Apr 1983	7.8°C13 Apr 1989	134 mm21 Apr 1983	471 mm2002 · driest 7 mm in 1997	55
May	33.9°C26 May 1990	8.3°C9 May 1989	361 mm18 May 1985	528 mm1985 · driest 0 mm in 2026	56
June	33.3°C30 Jun 1982	10.0°C18 Jun 1989	151 mm11 Jun 1979	351 mm1979 · driest 0 mm in 2026	56
July	33.3°C15 Jul 1986	10.6°C19 Jul 1989	91 mm4 Jul 1971	339 mm1971 · driest 11 mm in 2023	55
August	33.3°C28 Aug 2010	11.1°C31 Aug 2005	222 mm25 Aug 1988	591 mm2014 · driest 22 mm in 2019	56
September	32.8°C4 Sep 1995	7.8°C2 Sep 1986	305 mm16 Sep 1975	631 mm1975 · driest 9 mm in 2022	54
October	32.8°C17 Oct 1995	8.9°C17 Oct 1989	297 mm7 Oct 1985	704 mm1985 · driest 55 mm in 2025	55
November	33.9°C23 Nov 1980	5.6°C30 Nov 1989	115 mm28 Nov 1987	313 mm2003 · driest 19 mm in 2024	55
December	31.1°C19 Dec 1996	4.4°C28 Dec 1989	135 mm12 Dec 2007	329 mm2007 · driest 2 mm in 2018	54

Typical days per month at ADJUNTAS SUBSTN, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	26	<1	2
February	25	<1	2
March	27	<1	3
April	29	<1	5
May	30	3	7
June	29	11	4
July	30	14	4
August	30	15	7
September	29	13	7
October	30	9	8
November	28	2	4
December	26	<1	2

How often, not how much — every day in ADJUNTAS SUBSTN’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	73%	27%	6%	32%	25.3–27.1°C
February	73%	27%	7%	27%	25.6–27.2°C
March	68%	32%	10%	40%	26.1–27.7°C
April	62%	38%	18%	51%	26.7–28.1°C
May	58%	42%	19%	57%	27.3–28.8°C
June	68%	32%	13%	39%	28.4–29.8°C
July	59%	41%	16%	58%	28.7–30.0°C
August	53%	47%	22%	71%	28.9–29.9°C
September	45%	55%	26%	79%	28.6–30.0°C
October	44%	56%	27%	80%	27.9–29.6°C
November	55%	45%	15%	58%	27.0–28.6°C
December	70%	30%	6%	33%	25.6–27.6°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.

1970Each stripe is one year’s mean temperature against the 46-year average. Warmest: 1998. Coolest: 1989.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4566119
NOAA station: RQC00660061 · ADJUNTAS SUBSTN
Station distance: 17.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 18.02°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 19 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 ADJUNTAS SUBSTN is what differs

Yauco→Peñuelas→Guayanilla→Adjuntas→Santo Domingo→Tallaboa Alta→

Or put two places side by side: Magas Arriba vs Yauco

Best time to visitMagas Arriba.

January

June

February

The whole year,without the guesswork.

Magas Arriba runs +0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Magas Arriba.

The whole year,
without the guesswork.

Magas Arriba runs +0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.