Santa Cruz de Barahona weather in September

In September, Santa Cruz de Barahona sees average daytime highs of 30°C and overnight lows near 25°C, with 85 mm of rain across 11.6 wet days and about 12.1 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Santa Cruz de Barahona's 10th-clearest and 10th-windiest month. For the whole year in context, see Santa Cruz de Barahona's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
25°
11th coldest
Rainfall
85 mm
11.6 wet days
Daylight
12 h 06 min
6:36 AM – 6:42 PM
Cloud cover
56%
10th clearest
Wind
6 km/h
10th windiest
Solar energy
5.92 kWh/m²
Travel score
4.8
out of 10

Santa Cruz de Barahona is human settlement.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Santa Cruz de Barahona reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Santa Cruz de Barahona

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 Cruz de Barahona weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 22°112.2118.2
Feb28° / 22°112.611.48.1
Mar28° / 23°194.711.97.7
Apr28° / 24°305.512.46.8
May29° / 24°7510.912.85.5
Jun30° / 25°6010.413.15.2
Jul30° / 25°487.2135.5
Aug30° / 25°858.912.65.2
Sep30° / 25°8511.612.14.8
Oct30° / 25°10012.211.65.0
Nov29° / 24°466.811.16.2
Dec28° / 23°192.810.97.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35743
45842
55842
65941
75941
85941
95941
105941
115941
125941
135941
145842
155743
165743
175644
185644
195545
205446
215347
225248
235248
245149
255149
265149
275050
285050
295050
305050

Chance of precipitation in September

Any precipitation

Santa Cruz de Barahona gets around 85 mm of rain over 11.6 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 39% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
133
233
333
432
532
632
732
832
933
1033
1134
1234
1335
1436
1537
1638
1739
1840
1941
2042
2143
2244
2345
2446
2546
2647
2747
2847
2947
3047

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1937
2937
3937
4937
5937
6937
7937
8937
9937
10937
11946
12946
13946
14946
15946
16946
17946
18946
19946
20955
21955
22955
23955
24955
25955
26955
27955
28955
29955
30946

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over September. Sunrise moves from 6:33 AM to 6:38 AM, and sunset from 6:55 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:336:55
212.36:336:54
312.36:346:53
412.36:346:52
512.36:346:52
612.36:346:51
712.36:346:50
812.26:346:49
912.26:356:48
1012.26:356:47
1112.26:356:46
1212.26:356:45
1312.26:356:44
1412.16:356:44
1512.16:366:43
1612.16:366:42
1712.16:366:41
1812.16:366:40
1912.06:366:39
2012.06:366:38
2112.06:366:37
2212.06:376:36
2312.06:376:35
2412.06:376:35
2511.96:376:34
2611.96:376:33
2711.96:386:32
2811.96:386:31
2911.96:386:30
3011.96:386:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.92 kWh/m².

For context, solar energy here swings from a low near 4.61 kWh/m² to a high of 6.62 kWh/m² in July across the year — September's 5.92 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Intense
146.0Bright
156.0Bright
165.9Bright
175.9Bright
185.9Bright
195.8Bright
205.8Bright
215.8Bright
225.7Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Santa Cruz de Barahona

In seasonPeak

In September, Santa Cruz de Barahona sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

Santa Cruz de Barahona sits in the Atlantic hurricane belt; the season peaks August–October.

Santa Cruz de Barahona's rainy season runs May–November, when most of the year's rain falls.

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

Is September a good time to visit Santa Cruz de Barahona?

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

4.8
Sightseeing
12th-best month of the year
6.6
Beach & pool
12th-best month of the year

September is a reasonable time to visit Santa Cruz de Barahona for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Cruz de Barahona in September

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

In September, Santa Cruz de Barahona sees daytime highs around 30°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Santa Cruz de Barahona 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 at the nearest coast (about 26 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 in Santa Cruz de Barahona 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 Cruz de Barahona peaks around March 23 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 highHighMar 23UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Santa Cruz de Barahona 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 Cruz de Barahona is worst in June — around 28 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (January, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2328 µg/m³Jan 18 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr11Good
May18Moderate
Jun28Moderate
Jul28Moderate
Aug23Moderate
Sep17Moderate
Oct17Moderate
Nov10Good
Dec8Good
Location & terrain

Where is Santa Cruz de Barahona?

Santa Cruz de Barahona sits at 18.2°N, 71.1°W, 39 m above sea level, in Dominican Republic. The nearest listed city is Neiba, 46 km away.

NeibaAzuaSan Juan de la MaguanaSan José de OcoaBaníLas Matas de FarfánGrand GosierConstanza

Topography around Santa Cruz de Barahona

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Cruz de Barahona.

Within 3 km, the terrain around Santa Cruz de Barahona has significant variations in elevation — a maximum elevation change of 354 m around an average of 71 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,607 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,675 m.

The land around Santa Cruz de Barahona is covered by trees (37%), artificial surfaces (30%) and water (22%) within 3 km, trees (43%) and water (39%) within 16 km, and trees (40%) and water (34%) within 80 km.

3 km
354 m
16 km
1,607 m
80 km
2,675 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Neiba 46 km · Azua 47 km · San Juan de la Maguana 68 km · San José de Ocoa 73 km · Baní 82 km · Las Matas de Farfán 86 km · Grand Gosier 86 km · Constanza 86 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 Cruz de Barahona (18.2086°, -71.1007°, elevation 39 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).