Puerto Viejo weather in October

In October, Puerto Viejo sees average daytime highs of 28°C and overnight lows near 26°C, with 322 mm of rain across 28 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 4% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 42 min by month's end. Set against the rest of the year, October is Puerto Viejo's 9th-clearest and 7th-windiest month. For the whole year in context, see Puerto Viejo's year-round climate.

Daytime high
28°
6th warmest
Overnight low
26°
10th coldest
Rainfall
322 mm
28 wet days
Daylight
11 h 48 min
5:23 AM – 5:10 PM
Cloud cover
86%
9th clearest
Wind
7 km/h
7th windiest
Solar energy
4.42 kWh/m²
Travel score
3.6
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical October day in Puerto Viejo reaches about 28°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 27°C and 29°C. Set against its neighbours, October runs on par with September and on par with November.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302726
312726

Puerto Viejo weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°30121.911.55.0
Feb27° / 24°18418.411.75.3
Mar27° / 25°15819.211.95.3
Apr28° / 25°20621.212.24.6
May28° / 26°3882712.43.7
Jun28° / 26°44628.312.63.3
Jul28° / 25°58130.312.53.3
Aug28° / 26°4152912.33.4
Sep28° / 26°27327.212.13.5
Oct28° / 26°3222811.83.6
Nov27° / 25°58127.411.63.7
Dec27° / 25°48026.411.44.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 8% of October, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21189
31189
41189
51090
61090
71090
81090
91090
101090
111090
121189
131189
141288
151288
161288
171288
181288
191288
201288
211387
221387
231387
241387
251387
261486
271486
281387
291387
301486
311486

Chance of precipitation in October

Any precipitation

Puerto Viejo gets around 322 mm of rain over 28 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 90% and peaks near 92% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
289
389
489
589
689
789
889
989
1089
1189
1290
1390
1490
1590
1690
1790
1891
1991
2091
2191
2291
2391
2491
2591
2691
2791
2892
2992
3092
3192

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10928
20928
30937
40937
50946
60946
70946
80946
90955
100946
110946
120946
130946
140937
150937
160937
170937
180937
190937
201918
211918
221918
231918
241927
251927
261927
271936
281936
291936
302935
312935

Wind in October

Winds average 7 km/h in October.

Across October, daily wind ranges from about 6 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
16calm
26calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over October. Sunrise moves from 5:23 AM to 5:25 AM, and sunset from 5:17 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:235:17
211.95:225:17
311.95:225:16
411.95:225:16
511.95:225:15
611.95:225:15
711.95:225:14
811.95:225:13
911.85:225:13
1011.85:225:12
1111.85:225:12
1211.85:225:11
1311.85:225:11
1411.85:225:10
1511.85:235:10
1611.85:235:10
1711.85:235:09
1811.85:235:09
1911.85:235:08
2011.75:235:08
2111.75:235:07
2211.75:235:07
2311.75:235:07
2411.75:235:06
2511.75:245:06
2611.75:245:06
2711.75:245:05
2811.75:245:05
2911.75:245:05
3011.75:255:05
3111.75:255:04

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.42 kWh/m².

For context, solar energy here swings from a low near 3.73 kWh/m² to a high of 5.6 kWh/m² in March across the year — October's 4.42 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.1Bright
314.1Bright
Planning a trip in October

Is October a good time to visit Puerto Viejo?

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

3.6
Sightseeing
8th-best month of the year
3.8
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Puerto Viejo.

What to pack for Puerto Viejo in October

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

In October, Puerto Viejo sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Puerto Viejo 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 15 km away) is warmest in September at about 29°C and coldest in January near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Puerto Viejo in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Puerto Viejo peaks around March 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 19UV 14Dec 16UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Very high

Air quality in Puerto Viejo 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 Viejo is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1418 µg/m³Nov 226 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar9Good
Apr13Moderate
May17Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep11Good
Oct10Good
Nov6Good
Dec7Good
Location & terrain

Where is Puerto Viejo?

Puerto Viejo sits at 9.7°N, 82.8°W, 0 m above sea level, in Costa Rica. The nearest listed city is Changuinola, 36 km away.

ChanguinolaPuerto LimónSiquirresBoqueteTurrialbaSan IsidroParaíso

Topography around Puerto Viejo

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

Within 3 km, the terrain around Puerto Viejo has only modest variations in elevation — a maximum elevation change of 206 m around an average of 29 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 884 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,593 m.

The land around Puerto Viejo is covered by water (52%) and trees (46%) within 3 km, trees (54%) and water (43%) within 16 km, and trees (63%) and water (35%) within 80 km.

3 km
206 m
16 km
884 m
80 km
3,593 m
treesgrasslandartificial surfaceswater
October weather nearby: Changuinola 36 km · Puerto Limón 48 km · Bocas del Toro 66 km · Siquirres 96 km · Boquete 103 km · Turrialba 105 km · San Isidro 108 km · Paraíso 124 km

Costa Rica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$19,970
2025
Happiness
7.4 / 10
World Happiness, 2025
Safe drinking water
81%
of population, 2024
Homicide rate
17.7
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 516
Religion
Roman Catholic 48%none 27%Evangelical and Pentecostal 20%other 3%

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 Viejo (9.6569°, -82.7545°, elevation 0 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. 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).