Cataño weather in October

In October, Cataño sees average daytime highs of 29°C and overnight lows near 25°C, with 125 mm of rain across 20.5 wet days and about 11.6 hours of daylight. It is the 5th-warmest and 2nd-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 October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 18 min by month's end. Set against the rest of the year, October is Cataño's 9th-clearest and 12th-windiest month. For the whole year in context, see Cataño's year-round climate.

Daytime high
29°
5th warmest
Overnight low
25°
8th coldest
Rainfall
125 mm
20.5 wet days
Daylight
11 h 36 min
6:22 AM – 5:57 PM
Cloud cover
60%
9th clearest
Wind
11 km/h
12th windiest
Solar energy
5.21 kWh/m²
Travel score
4.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

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

A typical October day in Cataño reaches about 29°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How October really feels in Cataño

Once humidity and wind are folded in, October averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Cataño weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 23°3910.4116.8
Feb27° / 22°287.611.47.1
Mar28° / 23°398.411.96.9
Apr28° / 23°721112.45.8
May29° / 24°11216.212.94.7
Jun30° / 25°6813.913.14.5
Jul30° / 25°8016.5134.4
Aug30° / 25°9518.712.64.0
Sep30° / 25°13120.812.13.7
Oct29° / 25°12520.511.64.0
Nov28° / 24°11218.211.14.9
Dec27° / 23°4812.210.96.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44555
54555
64555
74753
84753
94753
104753
114852
124852
135050
145050
155050
165149
175248
185347
195446
205545
215644
225644
235743
245842
255842
265842
275842
285941
295941
305941
315941

Chance of precipitation in October

Any precipitation

Cataño gets around 125 mm of rain over 20.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 67% and peaks near 70% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
170
270
370
470
570
670
770
870
970
1069
1169
1269
1368
1467
1567
1666
1765
1864
1964
2063
2163
2263
2363
2463
2563
2664
2764
2864
2965
3065
3165

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
105743
205743
305842
405941
505941
606040
706139
806139
906238
1006238
1106337
1206436
1306436
1406535
1506535
1606634
1706634
1806733
1906733
2006832
2106832
2206931
2307030
2407030
2507129
2617128
2717227
2817425
2917524
3017623
3117722

Wind in October

Winds average 11 km/h in October, the calmest month.

Across October, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over October. Sunrise moves from 6:18 AM to 6:28 AM, and sunset from 6:08 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:186:08
211.86:196:08
311.86:196:07
411.86:196:06
511.86:196:05
611.76:206:04
711.76:206:03
811.76:206:03
911.76:206:02
1011.76:216:01
1111.76:216:00
1211.66:216:00
1311.66:215:59
1411.66:225:58
1511.66:225:57
1611.66:225:57
1711.66:235:56
1811.56:235:55
1911.56:235:55
2011.56:245:54
2111.56:245:53
2211.56:245:53
2311.56:255:52
2411.46:255:52
2511.46:265:51
2611.46:265:50
2711.46:265:50
2811.46:275:49
2911.46:275:49
3011.36:285:48
3111.36:285:48

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.21 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 6.56 kWh/m² in June across the year — October's 5.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in October

Hazard calendar for Cataño

In seasonPeak

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

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

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

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

Is October a good time to visit Cataño?

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

4.0
Sightseeing
10th-best month of the year
5.3
Beach & pool
11th-best month of the year

October is a reasonable time to visit Cataño for sightseeing.

What to pack for Cataño in October

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

In October, Cataño sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Cataño in October

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

The sea at the nearest coast (about 20 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
May27Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Cataño in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cataño peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 13UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Cataño in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cataño is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1324 µg/m³Jan 15 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr8Good
May14Moderate
Jun23Moderate
Jul24Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov8Good
Dec5Good
Location & terrain

Where is Cataño?

Cataño sits at 18.4°N, 66.1°W, 3 m above sea level, in Puerto Rico. The nearest listed city is San Juan, 3.0 km away.

CarolinaCaguas

Topography around Cataño

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

Within 3 km, the terrain around Cataño has only modest variations in elevation — a maximum elevation change of 77 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 326 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,308 m.

The land around Cataño is covered by water (40%) and artificial surfaces (35%) within 3 km, water (45%), artificial surfaces (25%) and trees (24%) within 16 km, and water (59%) and trees (32%) within 80 km.

3 km
77 m
16 km
326 m
80 km
1,308 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
October weather nearby: San Juan 3.0 km · Bayamón 6.0 km · Levittown 7.0 km · Guaynabo 9.0 km · Candelaria 10 km · Trujillo Alto 15 km · Carolina 18 km · Caguas 24 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 Cataño (18.4413°, -66.1182°, elevation 3 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).