San José de Ocoa weather in September

In September, San José de Ocoa sees average daytime highs of 28°C and overnight lows near 22°C, with 113 mm of rain across 21 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 3rd-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 22% 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 San José de Ocoa's 11th-clearest and 10th-windiest month. For the whole year in context, see San José de Ocoa's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
113 mm
21 wet days
Daylight
12 h 06 min
6:33 AM – 6:39 PM
Cloud cover
63%
11th clearest
Wind
5 km/h
10th windiest
Solar energy
5.5 kWh/m²
Travel score
4.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in San José de Ocoa reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°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)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822

San José de Ocoa weather by month

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

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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24753
34852
44753
54852
64753
74852
84951
94852
104951
114951
124951
134852
144852
154852
164753
174753
184753
194753
204753
214654
224753
234654
244654
254555
264654
274654
284555
294555
304555

Chance of precipitation in September

Any precipitation

San José de Ocoa gets around 113 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 70% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
167
267
367
468
568
668
768
869
969
1069
1170
1270
1371
1471
1572
1672
1772
1872
1972
2072
2172
2272
2372
2471
2571
2671
2770
2870
2970
3070

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
13763
23763
33664
43664
53664
63664
73664
83664
93664
103664
113664
123664
133664
143763
153763
163763
173862
183862
193961
203961
214060
224060
234060
244159
254159
264258
274258
284357
294357
304357

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:31 AM to 6:36 AM, and sunset from 6:53 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:316:53
212.46:316:52
312.36:316:51
412.36:316:50
512.36:316:49
612.36:326:48
712.36:326:48
812.26:326:47
912.26:326:46
1012.26:326:45
1112.26:326:44
1212.26:336:43
1312.26:336:42
1412.16:336:41
1512.16:336:40
1612.16:336:39
1712.16:336:39
1812.16:346:38
1912.06:346:37
2012.06:346:36
2112.06:346:35
2212.06:346:34
2312.06:346:33
2412.06:356:32
2511.96:356:31
2611.96:356:30
2711.96:356:30
2811.96:356:29
2911.96:366:28
3011.96:366:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.5 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.21 kWh/m² in July across the year — September's 5.5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for San José de Ocoa

In seasonPeak

In September, San José de Ocoa sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

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

Is September a good time to visit San José de Ocoa?

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

4.7
Sightseeing
12th-best month of the year
5.0
Beach & pool
11th-best month of the year

September is a reasonable time to visit San José de Ocoa for sightseeing.

What to pack for San José de Ocoa in September

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

In September, San José de Ocoa sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near San José de Ocoa 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 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 in San José de Ocoa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 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

Air quality in San José de Ocoa 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 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
Location & terrain

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
September weather 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).