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Shaded-relief map of Mariano Colón, Puerto Rico: rivers, roads, the city limits and where the water drains.
PUERTO RICO · COAMO MUNICIPIO

Mariano Colón

1,749 people, 540 ft above sea level in Coamo Municipio.

540 ftElevation, city center
1,749People, 2024 estimate
1 sq miLand area
Clear 82°
Clear now Dew point 75° · E 3 mph · high 82°
City of Mariano Colón River Interstate 2 miles
Explore the plate Order a print

The Mariano Colón plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Mariano Colón

NWS forecast and National Blend of Models · updated 7:00 PM AST
RIGHT NOW Mercedita Airport (TJPS) · 8:35 PM
Clear
82° Clear Feels like 89° · high of 82° near 8 PM
WindE 3 mphno gusts
Humidity79%rising to 88% by morning
Pressure30.00 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 75° · Oppressiveabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Partly cloudy
Tuesday, about 9 AMin about 60 hours · 60% chance · showers
LIKELY AMOUNT0–0 inmost likely 0; 1 in 10 over 0.03
LAST RAINNov. 140.08 in · 0 dry days
ALERTS & OUTLOOKS
No watches or warnings for Coamo Municipio
NWS San Juan and the Storm Prediction Center · checked 8:47 PM
SUN & MOON
↑ 6:30 AM5:48 PM ↓
11 h 18 m of daylight, 1 minute less than yesterday
Waxing crescent, 27% lit. Next full moon: Nov. 24.
AIR & POLLEN
65
MODERATEAir quality index · fine particles
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
showers day
showers day
showers day
showers night
TEMPERATURE °F
82°
78°
89°
75°
90°
75°
90°
CHANCE OF RAIN
60% · 0.00 in Tuesday afternoon 50%
WIND, MPH
9
9
8
8
9
10
9
7
6
6
6
6
7
9
10
8
7
7
7
7
7
9
11
9
HOW IT FEELS · DEW POINT
Oppressive: dew points 69 to 76°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Partly cloudy Partly cloudy
82° 77°
0% rain — SE 9 A
SUN Nov. 15 Mostly cloudy Mostly cloudy
89° 75°
20% rain — ESE 9 A
MON Nov. 16 Partly cloudy; hot Partly cloudy; hot
91° 75°
30% rain — ESE 8 A
TUE Nov. 17 Showers likely; hot Showers likely; hot
91° 77°
60% rain — ENE 8 A
WED Nov. 18 Storms likely; hot Storms likely; hot
90° 75°
60% rain up to 0.05″ E 7 A
THU Nov. 19 Chance of showers Chance of showers
89° 76°
50% rain — E 8 A
FRI Nov. 20 Chance of showers Chance of showers
89° 76°
30% rain — E 7 A
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Mariano Colón about 5,000 feet above the ground was over the tropical Atlantic three days ago, and over the Caribbean a day ago, about 1,000 miles back along its path. Air off the water carries moisture, which is why it feels humid. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK IN 2012 Nov. 13, 2012

The hottest this week has been

94° on Nov. 13, 2012, the hottest reading for this week of the year since 1955. Next is 93° in 2021.

93°
94°
20212012
Source: NOAA RCC-ACIS, the Aguirre record since 1955.
MILE2
THE GROUND

What Mariano Colón stands on

Mariano Colón’s center stands about 540 ft above sea level. Within three miles the land runs from 70 ft to 1,230 ft, a difference of 1,160 ft: steep hill country. The highest named summit within 15 miles is Cerro El Bolo, about 3,560 ft, 14 miles northwest.

Mariano Colón, cut in half from south to north

A section south to north, 24 miles through the town center
0 ft1,000 ft2,000 ft MARIANO COLÓN540 ftLas Ochenta40 ftCerro Respaldo960 ftCoamo430 ftHigh point of the line2,750 ft ← SOrocovis · N →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR.

MILE5
THE ALMANAC

Mariano Colón’s year

1991–2020 normals · records since 1955 · Aguirre, 9 mi southeast

Mariano Colón has a tropical savanna climate. Summer afternoons average 89° in August; winter nights fall to about 66° in January. About 40 inches of rain fall in a normal year.

84°66°84°67°84°67°85°69°86°72°87°74°88°73°89°73°88°73°88°72°87°70°85°68° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 TODAY 40.4 in rain a year
Normal high to low, by month Record high to low, by day Rain by month
August, average89° / 73°high / low, the warmest month
January, average84° / 66°high / low, the coldest month
Rain a year40.4 inwettest months: September and October
Hottest on record100°FSeptember 18, 2020
Coldest on record51°FDecember 3, 2013
Wettest day on record12.3 inOctober 7, 1985
Climate typeTropical savannaKöppen Aw

AROUND THE RING

1Wettest stretchAugust through October: 17.8 of the year’s 40.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Mariano Colón normally reaches 87° and falls to 70°. The record high is 91°, in 2018; the record low 62°, in 2001. The most rain on this date, 2.30 in, fell in 1999.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high84°84°84°85°86°87°88°89°88°88°87°85°
Normal low66°67°67°69°72°74°73°73°73°72°70°68°
Rain, inches1.261.241.361.514.512.923.605.276.855.664.531.66
Record high93° (2022)92° (2016)94° (2021)96° (2007)94° (2014)98° (2019)98° (2020)99° (2017)100° (2020)98° (2017)96° (2014)95° (2001)
Record low55° (1989)57° (2013)54° (1997)57° (2014)60° (2014)62° (1992)61° (2012)58° (1989)57° (1989)57° (2015)54° (2013)51° (2013)

Normals 1991–2020 and records since 1955 at Aguirre, 9 miles southeast, 520 ft lower. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Mariano Colón on the Forecast Network

Neighboring plates

Bayamón PR · 27 MI 27 miles northeast San Juan PR · 32 MI 32 miles northeast Mayagüez PR · 54 MI 54 miles west
FORECASTCITY
Map of Mariano Colón, Puerto Rico. Explore the plate
PUERTO RICO · COAMO

Mariano Colón

1,749 people, 540 ft above sea level in Coamo Municipio.

540 ftElevation
1,749People
1 sq miLand
Clear 82°
ClearDew point 75°
1

Today in Mariano Colón

NEXT 15 HOURS
Now partly cloudy night 82° 2%
11p mostly cloudy night 81° 0%
2a partly cloudy night 79° 0%
5a mostly cloudy night 78° 23%
8a mostly cloudy day 82° 0%
11a mostly cloudy day 88° 1%
Partly cloudy
NEXT RAINTuesday about 9 AM · 60%
→
Sat0%
Partly cloudy Partly cloudy
77
82
A
Sun20%
Mostly cloudy Mostly cloudy
75
89
A
Mon30%
Partly cloudy; hot Partly cloudy; hot
75
91
A
Tue60%
Showers likely; hot Showers likely; hot
77
91
A
Wed60%
Storms likely; hot Storms likely; hot
75
90
A
Thu50%
Chance of showers Chance of showers
76
89
A
Fri30%
Chance of showers Chance of showers
76
89
A
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 2012 · NOV. 13, 2012

94°, the hottest this week of the year has been since 1955.

2

What Mariano Colón stands on

Mariano Colón’s center stands about 540 ft above sea level. Within three miles the land runs from 70 ft to 1,230 ft, a difference of 1,160 ft: steep hill country. The highest named summit within 15 miles is Cerro El Bolo, about 3,560 ft, 14 miles northwest.

Mariano Colón, south to north Mariano Colón540 ftCerro Respaldo960 ft ← SN → 24 miles through the town center; vertical exaggeration about 13×.
Elevation, center540 ft
Within 3 miles70 to 1,230 ft
Lie of the landSteep hill country (1,160 ft of relief)
High point nearbyCerro El Bolo, 3,560 ft, 14 mi northwest
5

Mariano Colón’s year

Mariano Colón has a tropical savanna climate. Summer afternoons average 89° in August; winter nights fall to about 66° in January. About 40 inches of rain fall in a normal year.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 40.4 in
August, average89° / 73° · high / low, the warmest month
January, average84° / 66° · high / low, the coldest month
Rain a year40.4 in · wettest months: September and October
Hottest on record100°F · September 18, 2020
Coldest on record51°F · December 3, 2013
Wettest day on record12.3 in · October 7, 1985
Climate typeTropical savanna · Köppen Aw
1Wettest stretch · August through October: 17.8 of the year’s 40.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Mariano Colón normally reaches 87° and falls to 70°. The record high is 91°, in 2018; the record low 62°, in 2001. The most rain on this date, 2.30 in, fell in 1999.

Normals 1991–2020 and records since 1955 at Aguirre, 9 miles southeast, 520 ft lower. NOAA, through RCC-ACIS.