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Shaded-relief map of Hato Arriba, Puerto Rico: rivers, roads, the city limits and where the water drains.
PUERTO RICO · SAN SEBASTIÁN MUNICIPIO

Hato Arriba

764 people, 190 ft above sea level in San Sebastián Municipio.

190 ftElevation, city center
764People, 2024 estimate
1 sq miLand area
Sunny 86°
Sunny now Dew point 79° · NNW 5 mph · high 86°
City of Hato Arriba River Interstate 2 miles
Explore the plate Order a print

The Hato Arriba 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 Hato Arriba

NWS forecast and National Blend of Models · updated 4:00 PM AST
RIGHT NOW Rafael Hernandez Airport (TJBQ) · 4:50 PM
Sunny
86° Sunny Feels like 99° · high of 86° near 5 PM
WindNNW 5 mphno gusts
Humidity79%rising to 90% by morning
Pressure29.95 in →steady
Visibility8 mihazy
CloudsClear
UV index—no forecast
Dew point 79° · Oppressive70° by Monday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Showers
Monday, about 9 PMin about 52 hours · 55% chance · showers
LIKELY AMOUNT0–0 inmost likely 0; 1 in 10 over 0
LAST RAIN—none in 31 days
ALERTS & OUTLOOKS
No watches or warnings for San Sebastián Municipio
NWS San Juan and the Storm Prediction Center · checked 5:17 PM
SUN & MOON
↑ 6:34 AM5:51 PM ↓
11 h 17 m of daylight, 1 minute less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
52
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
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy night
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
showers night
showers night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
showers day
TEMPERATURE °F
86°
75°
88°
74°
87°
75°
CHANCE OF RAIN
55% · 0.00 in Monday night 50%
WIND, MPH
9
8
7
6
6
6
5
6
7
5
5
5
7
8
9
12
13
12
11
11
12
12
13
15
HOW IT FEELS · DEW POINT
Oppressive: dew points 70 to 78°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 89° / 72°
SAT Nov. 14 Mostly sunny Mostly sunny
86° 75°
0% rain — S 10 A
SUN Nov. 15 Mostly cloudy Mostly cloudy
89° 74°
10% rain — ESE 6 A
MON Nov. 16 Chance of showers Chance of showers
88° 74°
60% rain — ENE 10 A
TUE Nov. 17 Chance of showers Chance of showers
88° 74°
40% rain — ENE 15 A
WED Nov. 18 Storms likely Storms likely
87° 73°
70% rain up to 0.2″ E 8 A
THU Nov. 19 Chance of storms Chance of storms
87° 73°
50% rain — E 6 A
FRI Nov. 20 Chance of showers Chance of showers
87° 73°
40% rain — ENE 5 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 Hato Arriba about 5,000 feet above the ground was over the tropical Atlantic three days ago, and over the Caribbean a day ago, about 910 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 1931 Nov. 11–12, 1931

The wettest two days this week has seen

6.75 inches of rain fell in two days, the most for this week of the year since records began in 1901. The next wettest, 5.88 inches, fell in 1939.

5.88″
6.75″
19391931
Source: NOAA RCC-ACIS, the Isabela Substation record since 1901.
MILE2
THE GROUND

What Hato Arriba stands on

Hato Arriba’s center stands about 190 ft above sea level. Within three miles the land runs from 120 ft to 780 ft, a difference of 660 ft: hilly country. The highest named summit within 15 miles is Pico Santa Ana, about 2,950 ft, 15 miles south-southeast.

Aguada to Lares, cut in half

A section northwest to southeast, 24 miles through the town center
0 ft500 ft1,000 ft HATO ARRIBA190 ftLomas Verdes120 ftSan Sebastián230 ftLares1,200 ft ← NW · AguadaLares · SE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 15×.

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

Hato Arriba’s year

1991–2020 normals · records since 1901 · Isabela Substation, 8 mi north

Hato Arriba has a tropical rainforest climate. Summer afternoons average 87° in August; winter nights fall to about 67° in January. About 64 inches of rain fall in a normal year.

81°67°81°67°83°67°83°69°85°71°86°72°86°72°87°73°87°73°86°72°84°71°82°69° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 TODAY HATO ARRIBA 64.1 in rain a year
Normal high to low, by month Record high to low, by day Rain by month
August, average87° / 73°high / low, the warmest month
January, average81° / 67°high / low, the coldest month
Rain a year64.1 inwettest months: May and October
Hottest on record99°FSeptember 14, 1918
Coldest on record50°FFebruary 29, 2004
Wettest day on record7.45 inSeptember 27, 1932
90° days a year21none reach 100°
Climate typeTropical rainforestKöppen Af

AROUND THE RING

1Wettest stretchAugust through October: 20.4 of the year’s 64.1 inches
NOVEMBER 14 IN THE RECORD

On November 14 Hato Arriba normally reaches 84° and falls to 71°. The record high is 91°, in 2018; the record low 63°, in 1976. The most rain on this date, 4.33 in, fell in 2004.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high81°81°83°83°85°86°86°87°87°86°84°82°
Normal low67°67°67°69°71°72°72°73°73°72°71°69°
Rain, inches3.742.503.864.937.205.555.046.736.736.976.404.41
Record high95° (1917)95° (1912)98° (1917)96° (1917)97° (1917)99° (1916)98° (2005)99° (1918)99° (1918)97° (1918)96° (1913)95° (2018)
Record low50° (1935)53° (2004)54° (1996)54° (1968)59° (1922)57° (2019)58° (1987)57° (1985)58° (1988)55° (1985)57° (2015)56° (1969)

Normals 1991–2020 and records since 1901 at Isabela Substation, 8 miles north, 230 ft higher. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Hato Arriba on the Forecast Network

Neighboring plates

Mayagüez PR · 13 MI 13 miles southwest Ponce PR · 36 MI 36 miles southeast Bayamón PR · 57 MI 57 miles east San Juan PR · 64 MI 64 miles east Caguas PR · 66 MI 66 miles east Carolina PR · 69 MI 69 miles east
FORECASTCITY
Map of Hato Arriba, Puerto Rico. Explore the plate
PUERTO RICO · SAN SEBASTIÁN

Hato Arriba

764 people, 190 ft above sea level in San Sebastián Municipio.

190 ftElevation
764People
1 sq miLand
Sunny 86°
SunnyDew point 79°
1

Today in Hato Arriba

NEXT 15 HOURS
Now mostly sunny 86° 3%
8p partly cloudy night 82° 0%
11p partly cloudy night 79° 0%
2a mostly cloudy night 77° 0%
5a mostly cloudy night 75° 0%
8a mostly cloudy day 80° 0%
Showers
NEXT RAINMonday about 9 PM · 55%
→
Sat0%
Mostly sunny Mostly sunny
75
86
A
Sun10%
Mostly cloudy Mostly cloudy
74
89
A
Mon60%
Chance of showers Chance of showers
74
88
A
Tue40%
Chance of showers Chance of showers
74
88
A
Wed70%
Storms likely Storms likely
73
87
A
Thu50%
Chance of storms Chance of storms
73
87
A
Fri40%
Chance of showers Chance of showers
73
87
A
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1931 · NOV. 11–12, 1931

6.75 inches in two days, the most for this week since 1901.

2

What Hato Arriba stands on

Hato Arriba’s center stands about 190 ft above sea level. Within three miles the land runs from 120 ft to 780 ft, a difference of 660 ft: hilly country. The highest named summit within 15 miles is Pico Santa Ana, about 2,950 ft, 15 miles south-southeast.

Hato Arriba, northwest to southeast Hato Arriba190 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 28×.
Elevation, center190 ft
Within 3 miles120 to 780 ft
Lie of the landHilly (660 ft of relief)
High point nearbyPico Santa Ana, 2,950 ft, 15 mi south-southeast
5

Hato Arriba’s year

Hato Arriba has a tropical rainforest climate. Summer afternoons average 87° in August; winter nights fall to about 67° in January. About 64 inches of rain fall in a normal year.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 64.1 in
August, average87° / 73° · high / low, the warmest month
January, average81° / 67° · high / low, the coldest month
Rain a year64.1 in · wettest months: May and October
Hottest on record99°F · September 14, 1918
Coldest on record50°F · February 29, 2004
Wettest day on record7.45 in · September 27, 1932
90° days a year21 · none reach 100°
Climate typeTropical rainforest · Köppen Af
1Wettest stretch · August through October: 20.4 of the year’s 64.1 inches
NOVEMBER 14 IN THE RECORD

On November 14 Hato Arriba normally reaches 84° and falls to 71°. The record high is 91°, in 2018; the record low 63°, in 1976. The most rain on this date, 4.33 in, fell in 2004.

Normals 1991–2020 and records since 1901 at Isabela Substation, 8 miles north, 230 ft higher. NOAA, through RCC-ACIS.