Puerto Rico weather in October

In October, Puerto Rico sees average daytime highs of 28°C and overnight lows near 17°C, with 206 mm of rain across 13.2 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 28°C by the end. The sky is clear or mostly clear about 35% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of October to 13 hours by month's end. Set against the rest of the year, October is Puerto Rico's 12th-clearest and 5th-windiest month. For the whole year in context, see Puerto Rico's year-round climate.

Daytime high
28°
6th warmest
Overnight low
17°
7th coldest
Rainfall
206 mm
13.2 wet days
Daylight
12 h 36 min
6:06 AM – 6:45 PM
Cloud cover
58%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
5.33 kWh/m²
Travel score
5.8
out of 10

Puerto Rico is capital city of the Libertador General San Martín Department, in the Misiones Province of Argentina.

Founded
1919

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 28°C by the end.

A typical October day in Puerto Rico reaches about 28°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, October runs about 2°C warmer than September and about 2°C cooler than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32716
42716
52716
62716
72716
82717
92717
102717
112717
122817
132817
142817
152817
162817
172817
182817
192817
202817
212817
222817
232818
242818
252818
262818
272818
282818
292818
302818
312918

How October really feels in Puerto Rico

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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Puerto Rico weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°15114.913.53.7
Feb31° / 21°15414.412.94.0
Mar30° / 20°13711.912.24.9
Apr27° / 17°1419.711.46.5
May23° / 14°1629.210.77.0
Jun21° / 12°1549.110.36.7
Jul21° / 11°1259.110.56.9
Aug24° / 13°907.611.17.6
Sep26° / 15°15310.211.86.8
Oct28° / 17°20613.212.65.8
Nov30° / 18°16711.413.35.1
Dec31° / 20°1811413.74.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34852
44753
54852
64753
74753
84753
94753
104753
114654
124654
134753
144753
154753
164753
174852
184753
194753
204654
214852
224852
234852
244852
254852
264951
274951
284951
294852
304852
314951

Chance of precipitation in October

Any precipitation

Puerto Rico gets around 206 mm of rain over 13.2 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
240
340
440
541
641
742
842
943
1043
1143
1244
1344
1445
1545
1645
1746
1846
1945
2045
2144
2244
2343
2443
2542
2642
2741
2841
2941
3040
3140

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1212329251
2202329262
3192229282
4182228292
5172128312
6172127323
7162027343
8152027354
9141926364
10141926375
11131826375
12131826385
13121826386
14111727386
15111727396
16101728397
1791628397
1891628397
1991628398
2091528398
2191528398
2291528398
2391528399
2491528399
2591527399
26101626399
27101626409
28101625409
291016244010
301016244010
311016234110

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 6:22 AM to 5:53 AM, and sunset from 6:37 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:226:37
212.36:206:37
312.36:196:38
412.36:186:38
512.46:176:39
612.46:166:39
712.46:156:40
812.46:146:40
912.56:136:41
1012.56:126:41
1112.56:116:42
1212.56:106:42
1312.66:096:43
1412.66:086:43
1512.66:076:44
1612.66:066:45
1712.76:056:45
1812.76:046:46
1912.76:036:46
2012.76:026:47
2112.86:016:48
2212.86:006:48
2312.85:596:49
2412.85:596:49
2512.95:586:50
2612.95:576:51
2712.95:566:51
2812.95:556:52
2913.05:556:53
3013.05:546:53
3113.05:536:54

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.33 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.44 kWh/m² in December across the year — October's 5.33 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.7Bright
285.7Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in October

Is October a good time to visit Puerto Rico?

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

5.8
Sightseeing
7th-best month of the year
6.3
Beach & pool
5th-best month of the year

October is a reasonable time to visit Puerto Rico for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Puerto Rico in October

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

In October, Puerto Rico sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Puerto Rico in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puerto Rico peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 18UV 14Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct8Very high
Nov11Extreme
Dec13Extreme

Air quality in Puerto Rico 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 Puerto Rico is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1318 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar7Good
Apr8Good
May7Good
Jun7Good
Jul10Good
Aug16Moderate
Sep19Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is Puerto Rico?

Puerto Rico sits at 26.8°S, 55.0°W, 188 m above sea level, in Argentina. The nearest listed city is Jardín América, 33 km away.

Topography around Puerto Rico

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

Within 3 km, the terrain around Puerto Rico has only modest variations in elevation — a maximum elevation change of 161 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 550 m.

The land around Puerto Rico is covered by trees (52%) and grassland (24%) within 3 km, trees (59%) and cropland (21%) within 16 km, and trees (65%) and cropland (24%) within 80 km.

3 km
161 m
16 km
250 m
80 km
550 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Jardín América 33 km · Montecarlo 37 km · Eldorado 60 km · Oberá 76 km · Trinidad 77 km · San Vicente 91 km · San Pedro 93 km · Leandro N. Alem 93 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Puerto Rico (-26.8089°, -55.0215°, elevation 188 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. 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).