Climate and average weather in Santa Barbara De Samana

In Santa Barbara De Samana, 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 November.

Best: early January to mid May

Over the course of the year, the temperature in Santa Barbara De Samana typically varies from 23°C to 29°C, and is rarely below 22°C or above 30°C. September is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Santa Barbara De Samana for warm-weather activities are from early January to mid May and late November to late December.

Hottest
Sep
29°
Coldest
Jan
23°
Wettest
Nov
143 mm
Driest
Feb
61 mm
Rain / yr
1198 mm
232 wet days
Daylight
10.8–13.2 h
shortest–longest
Elevation
0 m
19.2°N
Clearest
Feb
35% cloud

Santa Barbara De Samana 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 May.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Santa Barbara De Samana, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Santa Barbara De Samana stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 29°C and low of 26°C; the coolest is January, with an average low of 23°C and high of 26°C.

Days typically run about 3°C warmer than nights year-round.

18°20°22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2623
Feb2623
Mar2623
Apr2724
May2825
Jun2825
Jul2826
Aug2926
Sep2926
Oct2825
Nov2725
Dec2624

How hot and cold Santa Barbara De Samana really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Santa Barbara De Samana feels like about 34°C (around September 5). About 126 days a year carry some heat stress, peaking in September.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan26262323
Feb26262323
Mar26262323
Apr27272424
May30282425
Jun32282525
Jul32282626
Aug33292626
Sep34292626
Oct32282525
Nov29272425
Dec26262424

Average hourly temperature in Santa Barbara De Samana

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 September afternoons, near 29°C, and coldest before dawn in January, near 23°C.

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

Santa Barbara De Samana 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
Jan26° / 23°7818.2115.8
Feb26° / 23°611511.36.2
Mar26° / 23°691511.96.3
Apr27° / 24°8316.112.45.9
May28° / 25°11019.512.95.1
Jun28° / 25°8318.513.14.7
Jul28° / 26°10921.8134.4
Aug29° / 26°11522.712.74.1
Sep29° / 26°1242112.14.1
Oct28° / 25°13023.311.64.2
Nov27° / 25°14321.411.14.9
Dec26° / 24°9319.410.95.5

Chance of rain

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

Santa Barbara De Samana gets about 1198 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 5.0 months, from around Jun 29 to Nov 28, peaking in November at about 76% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Mar 21.

November is the wettest month by volume, with 143 mm over about 21 wet days; February is the driest, with 61 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetNov 1 · 76%Mar 21 · 47%
Rain on a day (%)Rain days
Jan6018
Feb5315
Mar4815
Apr5316
May6220
Jun6319
Jul6922
Aug7323
Sep7121
Oct7523
Nov7121
Dec6319

Monthly rainfall

Over a full year, Santa Barbara De Samana collects about 1198 mm of rain across 232 wet days — roughly 100 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 143 mm, while February is the driest at just 61 mm. The three wettest months alone bring about 33% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec786169831108310911512413014393
Rainfall (mm)Rain days
Jan7818
Feb6115
Mar6915
Apr8316
May11020
Jun8319
Jul10922
Aug11523
Sep12421
Oct13023
Nov14321
Dec9319

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Santa Barbara De Samana, 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 20 and lasts for 5.4 months, ending around May 3. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 87% of the time on average.

The cloudier part of the year begins around May 4 and lasts for 6.6 months, ending around November 19. The cloudiest month is September, when it is overcast or mostly cloudy 49% 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 11 · 88%May 28 · 39%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan8416
Feb8713
Mar8416
Apr7723
May5149
Jun5149
Jul6040
Aug5743
Sep5149
Oct5347
Nov6436
Dec7921

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 17, brings about 13 h 12 min of light; the shortest, around December 16, only 10 h 48 min — a swing of roughly 2 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.07:186:15
Feb11.37:116:32
Mar11.96:516:43
Apr12.46:246:51
May12.96:067:01
Jun13.16:037:12
Jul13.06:117:15
Aug12.76:227:01
Sep12.16:286:35
Oct11.66:366:09
Nov11.16:505:55
Dec10.97:085:59

Sunny days

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

Santa Barbara De Samana averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 21 days.

The sunnier stretch runs 5.4 months, from around Nov 19 to Apr 30. The sunniest month is February, with roughly 20 sunny days (bright).

The greyest month is May, down near 10 sunny days — about 52% fewer than the February peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantFeb 1121 daysMay 287 days
Sunny daysSky
Jan19Bright
Feb19Bright
Mar19Bright
Apr16Bright
May10Mixed
Jun10Mixed
Jul13Mixed
Aug12Mixed
Sep10Mixed
Oct11Mixed
Nov13Mixed
Dec17Bright

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.

Santa Barbara De Samana 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 April, 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 2% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggyhumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan2646460
Feb3958300
Mar21151360
Apr1431640
May008856
Jun0007525
Jul0006535
Aug0004753
Sep0004753
Oct0017127
Nov0214814
Dec0525690

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.

Across the year, average wind speed in Santa Barbara De Samana is typically light breeze, near 17 km/h, and varies moderately with the seasons.

The windier part of the year lasts 2.3 months, from around Jun 13 to Aug 22. The windiest month is July, averaging about 19 km/h (light breeze).

The calmer part of the year runs from around Aug 23 to Dec 1, with October the calmest month at about 14 km/h.

0510152025JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezyJul 8 · 19 km/hOct 12 · 13 km/h
Wind speed (km/h)Feels
Jan18light breeze
Feb18light breeze
Mar17light breeze
Apr17light breeze
May16light breeze
Jun17light breeze
Jul19light breeze
Aug17light breeze
Sep15light breeze
Oct14light breeze
Nov16light breeze
Dec17light breeze

Hazard calendar for Santa Barbara De Samana

In seasonPeak

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

Santa Barbara De Samana 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 Santa Barbara De Samana

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Santa Barbara De Samana throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid January, Santa Barbara De Samana is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Santa Barbara De Samana for general outdoor tourist activities is from late November to mid May, with a peak score in the third week of March.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMar 19 · 6.4

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
Jan5.8good
Feb6.2good
Mar6.3good
Apr5.9good
May5.1fair
Jun4.7fair
Jul4.4fair
Aug4.2fair
Sep4.1fair
Oct4.2fair
Nov4.9fair
Dec5.5good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Santa Barbara De Samana for hot-weather activities is from mid November to late October, with a peak score in the third week of March.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationMar 21 · 6.1

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 Santa Barbara De Samana, 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.

Santa Barbara De Samana packs about the same all year — highs hold near 29°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 September, Santa Barbara De Samana sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

Sea temperature near Santa Barbara De Samana

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

The sea offshore 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
Jan26Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Warm
Jul28Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index (midday) in Santa Barbara De Samana 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 Santa Barbara De Samana peaks around August 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighAug 16UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Average hourly UV index in Santa Barbara De Samana

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 August the burn window is concentrated in the middle of the day: about 8 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)
Jan6.53.5
Feb74.5
Mar86
Apr86
May86
Jun8.56
Jul8.56
Aug86
Sep86
Oct74.5
Nov63
Dec62.5

Air quality in Santa Barbara De Samana 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 Santa Barbara De Samana is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (December, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1225 µg/m³Dec 225 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar8Good
Apr9Good
May15Moderate
Jun24Moderate
Jul25Moderate
Aug20Moderate
Sep15Moderate
Oct14Moderate
Nov7Good
Dec5Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Santa Barbara De Samana 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. Santa Barbara De Samana banks about 5,789 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan446
Feb402
Mar450
Apr453
May496
Jun505
Jul527
Aug534
Sep519
Oct520
Nov473
Dec466

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.

Santa Barbara De Samana receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.1 and 6.4 kWh/m².

The brighter stretch of the year lasts 6.8 months, from around Mar 5 to Sep 26. The brightest month is June, averaging about 6.4 kWh/m² (intense).

The dimmest month is December, down near 4.1 kWh/m² — roughly 36% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 196.4 kWhDec 214.1 kWh
Solar energy (kWh/m²)Level
Jan4.3Bright
Feb5.0Bright
Mar5.8Bright
Apr6.3Intense
May6.2Intense
Jun6.5Intense
Jul6.3Intense
Aug6.2Intense
Sep5.8Bright
Oct5.0Bright
Nov4.3Bright
Dec4.1Bright

Where is Santa Barbara De Samana?

Santa Barbara De Samana sits at 19.2°N, 69.3°W, 0 m above sea level, in Dominican Republic. The nearest listed city is Las Terrenas, 25 km away.

Las TerrenasMichesHato Mayor del ReySabana Grande de BoyáNaguaSanta Cruz de El SeiboBayaguanaMonte Plata

Topography around Santa Barbara De Samana

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Barbara De Samana.

Within 3 km, the terrain around Santa Barbara De Samana has only modest variations in elevation — a maximum elevation change of 241 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 601 m; within 80 km, large variations in elevation — a maximum elevation change of 689 m.

The land around Santa Barbara De Samana is covered by trees (57%) and water (35%) within 3 km, water (55%) and trees (38%) within 16 km, and water (42%), trees (32%) and grassland (22%) within 80 km.

3 km
241 m
16 km
601 m
80 km
689 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Las Terrenas 25 km · Miches 39 km · Hato Mayor del Rey 49 km · Sabana Grande de Boyá 56 km · Nagua 57 km · Santa Cruz de El Seibo 58 km · Bayaguana 60 km · Monte Plata 65 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 Santa Barbara De Samana (19.204°, -69.3341°, 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. 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).