Climate and average weather in San José de Ocoa

In San José de Ocoa, the weather is muggy, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around May.

Best: early January to mid April

Over the course of the year, the temperature in San José de Ocoa typically varies from 19°C to 28°C, and is rarely below 18°C or above 29°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit San José de Ocoa for warm-weather activities are from early January to mid April and mid November to late December.

Hottest
Aug
28°
Coldest
Jan
19°
Wettest
May
122 mm
Driest
Jan
29 mm
Rain / yr
889 mm
184 wet days
Daylight
10.9–13.1 h
shortest–longest
Elevation
481 m
18.5°N
Clearest
Jan
34% cloud

San José de Ocoa weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to mid April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in San José de Ocoa, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in San José de Ocoa stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 28°C and low of 23°C; the coolest is January, with an average low of 19°C and high of 25°C.

Days typically run about 6°C warmer than nights year-round.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2519
Feb2519
Mar2619
Apr2620
May2721
Jun2722
Jul2823
Aug2823
Sep2822
Oct2722
Nov2721
Dec2620

Average hourly temperature in San José de Ocoa

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 28°C, and coldest before dawn in January, near 19°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

San José de Ocoa weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 19°299.2117.4
Feb25° / 19°329.411.47.2
Mar26° / 19°5512.811.96.7
Apr26° / 20°8916.812.45.8
May27° / 21°1222112.95.0
Jun27° / 22°7016.413.15.4
Jul28° / 23°6115.8135.4
Aug28° / 23°10618.812.64.8
Sep28° / 22°1132112.14.7
Oct27° / 22°11419.811.65.1
Nov27° / 21°6514.611.16.0
Dec26° / 20°338.210.97.4

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

San José de Ocoa gets about 889 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.1 months, from around Jul 14 to Nov 14, peaking in September at about 72% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 17.

May is the wettest month by volume, with 122 mm over about 21 wet days; January is the driest, with 29 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 19 · 72%Dec 17 · 26%
Rain on a day (%)Rain days
Jan299
Feb349
Mar4213
Apr5617
May6621
Jun5616
Jul5116
Aug6019
Sep7021
Oct6420
Nov4715
Dec278

Monthly rainfall

Over a full year, San José de Ocoa collects about 889 mm of rain across 184 wet days — roughly 74 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 122 mm, while January is the driest at just 29 mm. The three wettest months alone bring about 39% of the year’s total.

0255075100125150JanFebMarAprMayJunJulAugSepOctNovDec2932558912270611061131146533
Rainfall (mm)Rain days
Jan299
Feb329
Mar5513
Apr8917
May12221
Jun7016
Jul6116
Aug10619
Sep11321
Oct11420
Nov6515
Dec338

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In San José de Ocoa, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around November 18 and lasts for 5.3 months, ending around April 28. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 90% of the time on average.

The cloudier part of the year begins around April 29 and lasts for 6.7 months, ending around November 17. The cloudiest month is June, when it is overcast or mostly cloudy 54% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 13 · 92%May 28 · 36%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan8812
Feb9010
Mar8317
Apr7327
May4852
Jun4654
Jul6139
Aug5446
Sep4753
Oct5149
Nov6634
Dec8218

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 4, brings about 13 h 06 min of light; the shortest, around January 1, only 10 h 54 min — a swing of roughly 2 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.07:216:21
Feb11.47:156:38
Mar11.96:566:48
Apr12.46:306:55
May12.96:127:04
Jun13.16:097:15
Jul13.06:177:18
Aug12.66:277:05
Sep12.16:336:39
Oct11.66:406:14
Nov11.16:546:01
Dec10.97:116:05

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

San José de Ocoa averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 22 days.

The sunnier stretch runs 4.7 months, from around Nov 10 to Apr 1. The sunniest month is January, with roughly 21 sunny days (bright).

The greyest month is May, down near 6 sunny days — about 71% fewer than the January peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantJan 522 daysMay 274 days
Sunny daysSky
Jan22Bright
Feb18Bright
Mar16Bright
Apr12Mixed
May6Gloomy
Jun7Gloomy
Jul12Mixed
Aug11Mixed
Sep7Gloomy
Oct9Mixed
Nov14Mixed
Dec20Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

San José de Ocoa is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is May, when it feels muggy, oppressive or miserable about 95% of the time. Even in March, the mildest month, the air is dry or comfortable only 6% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 7 · 8%May 4 · 0%oppressivemuggyhumidcomfortablehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan452430
Feb657370
Mar644491
Apr221734
May057521
Jun006040
Jul016138
Aug004753
Sep003961
Oct005247
Nov077517
Dec229682

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in San José de Ocoa is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJul 5 · 6 km/hOct 14 · 4 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr6calm
May5calm
Jun6calm
Jul6calm
Aug6calm
Sep5calm
Oct4calm
Nov5calm
Dec6calm

Hazard calendar for San José de Ocoa

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

San José de Ocoa sits in the Atlantic hurricane belt; the season peaks August–October.

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

Best time to visit San José de Ocoa

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in San José de Ocoa throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late March, San José de Ocoa is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit San José de Ocoa for general outdoor tourist activities is from mid November to early April, with a peak score in the last week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 26 · 7.5

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan7.4good
Feb7.2good
Mar6.7good
Apr5.8good
May5.0fair
Jun5.4fair
Jul5.4fair
Aug4.9fair
Sep4.7fair
Oct5.1fair
Nov6.1good
Dec7.3good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit San José de Ocoa for hot-weather activities run from mid June to mid August and again from late October to mid April, with a peak score in the third week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 16 · 7.0

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for San José de Ocoa, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

San José de Ocoa packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, San José de Ocoa sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

Sea temperature near San José de Ocoa

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 23 km away) is warmest in September at about 29°C and coldest in February 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
Mar27Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index (midday) in San José de Ocoa by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in San José de Ocoa peaks around March 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highHighMar 22UV 12Dec 13UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov7Very high
Dec7High

Average hourly UV index in San José de Ocoa

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in March the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan6.54
Feb75
Mar7.56
Apr86
May86
Jun8.56.5
Jul8.56
Aug8.56.5
Sep7.55.5
Oct75
Nov63.5
Dec62.5

Air quality in San José de Ocoa by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in San José de Ocoa is worst in June — around 31 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (February, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2131 µg/m³Feb 1417 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar18Moderate
Apr18Moderate
May23Moderate
Jun31Moderate
Jul29Moderate
Aug26Moderate
Sep25Moderate
Oct26Moderate
Nov21Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

San José de Ocoa is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. San José de Ocoa banks about 5,041 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan378
Feb340
Mar387
Apr397
May435
Jun444
Jul473
Aug476
Sep449
Oct450
Nov414
Dec398

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

San José de Ocoa receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 6.2 kWh/m².

The brighter stretch of the year lasts 6.8 months, from around Mar 1 to Sep 22. The brightest month is July, averaging about 6.2 kWh/m² (intense).

The dimmest month is December, down near 4.3 kWh/m² — roughly 31% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 56.2 kWhDec 234.3 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb5.0Bright
Mar5.5Bright
Apr5.8Bright
May5.7Bright
Jun6.0Intense
Jul6.2Intense
Aug5.9Bright
Sep5.5Bright
Oct4.9Bright
Nov4.4Bright
Dec4.3Bright

Where is San José de Ocoa?

San José de Ocoa sits at 18.5°N, 70.5°W, 481 m above sea level, in Dominican Republic. The nearest listed city is Azua, 26 km away.

AzuaBaníVilla AltagraciaSan CristóbalBonaoConstanzaBajos de HainaSanto Domingo Oeste

Topography around San José de Ocoa

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San José de Ocoa.

Within 3 km, the terrain around San José de Ocoa has significant variations in elevation — a maximum elevation change of 497 m around an average of 535 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,534 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,072 m.

The land around San José de Ocoa is covered by trees (73%) within 3 km, trees (84%) within 16 km, and trees (50%) and water (27%) within 80 km.

3 km
497 m
16 km
2,534 m
80 km
3,072 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Azua 26 km · Baní 35 km · Villa Altagracia 38 km · San Cristóbal 45 km · Bonao 45 km · Constanza 47 km · Bajos de Haina 52 km · Santo Domingo Oeste 54 km

Dominican Republic travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
120 V · 60 Hz
Prices
≈ 39% of US
price level, 2025
GDP per capita
$11,059
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
45%
of population, 2024
Homicide rate
10.9
per 100k, 2023
Road deaths
64.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 503

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 San José de Ocoa (18.5468°, -70.5069°, elevation 481 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).