Sabana Grande de Boyá weather in September

In September, Sabana Grande de Boyá sees average daytime highs of 30°C and overnight lows near 23°C, with 168 mm of rain across 24.3 wet days and about 12.1 hours of daylight. It is the 3rd-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 14% 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 48 min by month's end. Set against the rest of the year, September is Sabana Grande de Boyá's 11th-clearest and 11th-windiest month. For the whole year in context, see Sabana Grande de Boyá's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
168 mm
24.3 wet days
Daylight
12 h 06 min
6:30 AM – 6:37 PM
Cloud cover
69%
11th clearest
Wind
6 km/h
11th windiest
Solar energy
5.41 kWh/m²
Travel score
3.1
out of 10

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 Sabana Grande de Boyá reaches about 30°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°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)
13123
23123
33123
43123
53123
63123
73123
83123
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How September really feels in Sabana Grande de Boyá

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.

Sabana Grande de Boyá weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°4815.5115.8
Feb28° / 19°4413.211.45.9
Mar28° / 20°7414.711.95.5
Apr29° / 21°12118.812.44.4
May30° / 22°19922.712.93.7
Jun30° / 23°14821.713.13.4
Jul30° / 23°13923.1133.4
Aug31° / 23°15724.912.63.2
Sep30° / 23°16824.312.13.1
Oct30° / 22°14624.611.63.4
Nov28° / 21°11121.511.14.4
Dec27° / 20°5716.710.95.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33565
43565
53565
63565
73565
83565
93565
103664
113664
123664
133763
143664
153664
163763
173763
183763
193763
203763
213763
223763
233664
243664
253664
263664
273763
283763
293763
303763

Chance of precipitation in September

Any precipitation

Sabana Grande de Boyá gets around 168 mm of rain over 24.3 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 81% and peaks near 84% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
181
280
380
480
580
679
780
880
980
1080
1181
1281
1382
1482
1583
1683
1783
1883
1984
2083
2183
2283
2383
2482
2582
2681
2781
2881
2980
3080

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 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17525
27624
37624
47624
57624
67624
77723
87723
97723
107723
117822
127822
137822
147921
157921
167921
178020
188020
198020
208119
218119
228119
238218
248218
258218
268218
278317
288317
298317
308317

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 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
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 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 6:28 AM to 6:33 AM, and sunset from 6:50 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:286:50
212.46:286:49
312.36:286:48
412.36:286:48
512.36:286:47
612.36:296:46
712.36:296:45
812.36:296:44
912.26:296:43
1012.26:296:42
1112.26:296:41
1212.26:306:40
1312.26:306:39
1412.16:306:39
1512.16:306:38
1612.16:306:37
1712.16:306:36
1812.16:316:35
1912.16:316:34
2012.06:316:33
2112.06:316:32
2212.06:316:31
2312.06:326:30
2412.06:326:29
2511.96:326:28
2611.96:326:27
2711.96:326:27
2811.96:336:26
2911.96:336:25
3011.86:336:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.41 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 6 kWh/m² in June across the year — September's 5.41 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Sabana Grande de Boyá

In seasonPeak

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

Sabana Grande de Boyá 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 Sabana Grande de Boyá?

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

3.1
Sightseeing
12th-best month of the year
4.4
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Sabana Grande de Boyá.

What to pack for Sabana Grande de Boyá in September

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

In September, Sabana Grande de Boyá sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Sabana Grande de Boyá 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 48 km away) 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 Sabana Grande de Boyá 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 Sabana Grande de Boyá peaks around August 15 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 highAug 15UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Sabana Grande de Boyá 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 Sabana Grande de Boyá is worst in June — around 31 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2130 µg/m³Dec 2015 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar17Moderate
Apr18Moderate
May23Moderate
Jun31Moderate
Jul29Moderate
Aug25Moderate
Sep23Moderate
Oct24Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Sabana Grande de Boyá?

Sabana Grande de Boyá sits at 18.9°N, 69.8°W, 291 m above sea level, in Dominican Republic. The nearest listed city is Monte Plata, 15 km away.

BayaguanaCotuíLas TerrenasNaguaVilla AltagraciaSanto Domingo EsteCristo Rey

Topography around Sabana Grande de Boyá

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sabana Grande de Boyá.

Within 3 km, the terrain around Sabana Grande de Boyá has only modest variations in elevation — a maximum elevation change of 206 m around an average of 269 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,012 m.

The land around Sabana Grande de Boyá is covered by grassland (57%) and trees (36%) within 3 km, trees (62%) and grassland (37%) within 16 km, and trees (47%), water (25%) and grassland (21%) within 80 km.

3 km
206 m
16 km
480 m
80 km
2,012 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Monte Plata 15 km · Bayaguana 27 km · Cotuí 40 km · Las Terrenas 48 km · Nagua 49 km · Villa Altagracia 50 km · Santo Domingo Este 51 km · Cristo Rey 52 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 Sabana Grande de Boyá (18.945°, -69.7933°, elevation 291 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).