Santa Barbara De Samana weather in September

In September, Santa Barbara De Samana sees average daytime highs of 29°C and overnight lows near 26°C, with 124 mm of rain across 21 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 3rd-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 32% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Santa Barbara De Samana's 11th-clearest and 11th-windiest month. For the whole year in context, see Santa Barbara De Samana's year-round climate.

Daytime high
29°
1st warmest
Overnight low
26°
11th coldest
Rainfall
124 mm
21 wet days
Daylight
12 h 06 min
6:28 AM – 6:35 PM
Cloud cover
59%
11th clearest
Wind
15 km/h
11th windiest
Solar energy
5.76 kWh/m²
Travel score
4.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Santa Barbara De Samana reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926

How September really feels in Santa Barbara De Samana

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Santa Barbara De Samana weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
25050
35050
45050
55050
65050
74951
84951
94951
104951
114951
125050
135050
145149
155149
165149
175248
185248
195248
205149
215248
225248
235248
245149
255248
265149
275050
285149
295149
305050

Chance of precipitation in September

Any precipitation

Santa Barbara De Samana gets around 124 mm of rain over 21 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 71% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
170
269
369
468
568
668
768
868
969
1069
1170
1270
1371
1471
1572
1672
1772
1872
1972
2072
2172
2272
2372
2472
2572
2672
2772
2872
2972
3072

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
14258
24258
34258
44258
54159
64159
74159
84258
94258
104258
114357
124357
134456
144456
154555
164654
174654
184753
194852
204852
214951
225050
235149
245248
255347
265446
275545
285644
295743
305842

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:26 AM to 6:31 AM, and sunset from 6:49 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:266:49
212.46:266:48
312.36:266:47
412.36:266:46
512.36:266:45
612.36:276:44
712.36:276:43
812.36:276:42
912.26:276:41
1012.26:276:40
1112.26:276:40
1212.26:286:39
1312.26:286:38
1412.16:286:37
1512.16:286:36
1612.16:286:35
1712.16:296:34
1812.16:296:33
1912.16:296:32
2012.06:296:31
2112.06:296:30
2212.06:306:29
2312.06:306:28
2412.06:306:27
2511.96:306:27
2611.96:306:26
2711.96:316:25
2811.96:316:24
2911.96:316:23
3011.86:316:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.76 kWh/m².

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.45 kWh/m² in June across the year — September's 5.76 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Santa Barbara De Samana

In seasonPeak

In September, Santa Barbara De Samana sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

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

Is September a good time to visit Santa Barbara De Samana?

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

4.1
Sightseeing
11th-best month of the year
5.2
Beach & pool
9th-best month of the year

September is a reasonable time to visit Santa Barbara De Samana for sightseeing.

What to pack for Santa Barbara De Samana in September

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

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.

light clothesrain gearsun protection

Sea temperature near Santa Barbara De Samana in September

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

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 in Santa Barbara De Samana in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Santa Barbara De Samana in September

GoodModeratePoorUnhealthyVery unhealthy

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

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
September weather 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).