Aguadilla weather in September

In September, Aguadilla sees average daytime highs of 29°C and overnight lows near 26°C, with 104 mm of rain across 16.4 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Aguadilla's 12th-clearest and 11th-windiest month. For the whole year in context, see Aguadilla's year-round climate.

Daytime high
29°
1st warmest
Overnight low
26°
12th coldest
Rainfall
104 mm
16.4 wet days
Daylight
12 h 06 min
6:20 AM – 6:26 PM
Cloud cover
61%
12th clearest
Wind
15 km/h
11th windiest
Solar energy
5.91 kWh/m²
Travel score
4.8
out of 10

Aguadilla is zona urbana in Aguadilla, Puerto Rico.

Density
2,005/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Aguadilla reaches about 29°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302826

How September really feels in Aguadilla

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Aguadilla weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°205.3117.9
Feb26° / 24°205.811.47.8
Mar26° / 24°288.311.97.4
Apr26° / 24°37912.47.0
May27° / 25°801612.95.6
Jun28° / 26°6214.613.15.2
Jul29° / 26°5813.7135.3
Aug29° / 26°741612.65.0
Sep29° / 26°10416.412.14.8
Oct28° / 26°771611.65.3
Nov27° / 25°6511.711.16.4
Dec27° / 25°266.510.97.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25248
35149
45149
55149
65149
75149
85149
95149
105149
115050
125050
135050
145050
155050
164951
174852
184852
194852
204753
214753
224852
234753
244852
254852
264852
274852
284951
294951
304951

Chance of precipitation in September

Any precipitation

Aguadilla gets around 104 mm of rain over 16.4 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 59% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
152
251
351
451
550
650
751
851
951
1052
1152
1253
1354
1455
1555
1656
1757
1858
1958
2059
2159
2259
2359
2458
2557
2657
2756
2855
2955
3055

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15149
25149
35149
45149
55149
65149
75149
85248
95248
105347
115446
125545
135545
145644
155743
165842
175842
185941
196040
206139
216238
226337
236337
246436
256535
266634
276634
286733
296832
306931

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over September. Sunrise moves from 6:17 AM to 6:22 AM, and sunset from 6:39 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:176:39
212.36:186:38
312.36:186:38
412.36:186:37
512.36:186:36
612.36:186:35
712.36:186:34
812.26:196:33
912.26:196:32
1012.26:196:31
1112.26:196:31
1212.26:196:30
1312.26:196:29
1412.16:206:28
1512.16:206:27
1612.16:206:26
1712.16:206:25
1812.16:206:24
1912.06:206:23
2012.06:216:22
2112.06:216:21
2212.06:216:21
2312.06:216:20
2412.06:216:19
2511.96:216:18
2611.96:226:17
2711.96:226:16
2811.96:226:15
2911.96:226:14
3011.96:226:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.91 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.64 kWh/m² in April across the year — September's 5.91 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Aguadilla

In seasonPeak

In September, Aguadilla sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Aguadilla sits in the Atlantic hurricane belt; the season peaks August–October.

Aguadilla sees seasonal dust haze (July), heaviest in July.

Atlantic hurricane
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Aguadilla?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.8
Sightseeing
12th-best month of the year
5.9
Beach & pool
12th-best month of the year

September is a reasonable time to visit Aguadilla for sightseeing.

What to pack for Aguadilla in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Aguadilla sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Aguadilla in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in September at about 29°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Aguadilla in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aguadilla peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 12UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Aguadilla in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Aguadilla is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (January, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1224 µg/m³Jan 105 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr8Good
May14Moderate
Jun23Moderate
Jul25Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov7Good
Dec5Good
Location & terrain

Where is Aguadilla?

Aguadilla sits at 18.4°N, 67.2°W, 7 m above sea level, in Puerto Rico. The nearest listed city is Mayagüez, 25 km away.

MayagüezSan GermánAreciboLa PargueraYaucoBarcelonetaManatíPonce

Topography around Aguadilla

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Aguadilla.

Within 3 km, the terrain around Aguadilla has only modest variations in elevation — a maximum elevation change of 239 m around an average of 67 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 365 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,307 m.

The land around Aguadilla is covered by trees (40%) and water (37%) within 3 km, water (43%) and trees (37%) within 16 km, and water (70%) and trees (24%) within 80 km.

3 km
239 m
16 km
365 m
80 km
1,307 m
treesgrasslandartificial surfaceswater
September weather nearby: Mayagüez 25 km · San Germán 40 km · Arecibo 47 km · La Parguera 52 km · Yauco 54 km · Barceloneta 65 km · Manatí 70 km · Ponce 73 km

Puerto Rico travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 78% of US
price level, 2025
GDP per capita
$40,620
2025
Happiness
7.0 / 10
World Happiness, 2015
Safe drinking water
99%
of population, 2024
Homicide rate
14.6
per 100k, 2023
Income group
High
World Bank
Religion
Roman Catholic 56%Protestant 33%none 7%other 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Aguadilla (18.4275°, -67.1541°, elevation 7 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).