San Pedro de Macoris weather in September

In September, San Pedro de Macoris sees average daytime highs of 30°C and overnight lows near 26°C, with 122 mm of rain across 17.5 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 1st-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 30% 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 Pedro de Macoris's 12th-clearest and 11th-windiest month. For the whole year in context, see San Pedro de Macoris's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
26°
11th coldest
Rainfall
122 mm
17.5 wet days
Daylight
12 h 06 min
6:28 AM – 6:35 PM
Cloud cover
61%
12th clearest
Wind
12 km/h
11th windiest
Solar energy
5.42 kWh/m²
Travel score
4.3
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 San Pedro de Macoris reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°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)
13026
23026
33026
43026
53026
63026
73026
83026
93026
103026
113026
123026
133026
143026
153026
163026
173026
183026
193026
202926
212926
222926
232926
242926
252926
262925
272925
282925
292925
302925

How September really feels in San Pedro de Macoris

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.

San Pedro de Macoris weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 23°174.1117.8
Feb27° / 23°133.311.47.9
Mar27° / 23°204.711.97.6
Apr28° / 24°367.612.46.7
May29° / 25°8513.912.95.3
Jun29° / 25°6512.613.14.9
Jul30° / 26°6712.2134.9
Aug30° / 26°9214.612.64.5
Sep30° / 26°12217.512.14.3
Oct29° / 25°10117.511.64.6
Nov28° / 24°6712.211.15.7
Dec28° / 24°235.110.97.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25050
35149
45149
55149
65149
75149
85050
94951
104951
114951
124852
134852
144852
154654
164654
174654
184555
194555
204555
214456
224456
234654
244654
254555
264555
274654
284654
294753
304753

Chance of precipitation in September

Any precipitation

San Pedro de Macoris gets around 122 mm of rain over 17.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 58% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
153
253
353
453
553
653
753
854
954
1055
1156
1256
1357
1457
1558
1659
1759
1860
1961
2061
2162
2262
2363
2463
2562
2662
2762
2862
2961
3061

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15446
25446
35446
45446
55446
65446
75347
85347
95347
105446
115446
125446
135446
145545
155545
165644
175644
185644
195743
205743
215842
225842
235941
245941
256040
266139
276139
286238
296238
306337

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

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 6:26 AM to 6:31 AM, and sunset from 6:48 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:266:48
212.46:266:47
312.36:266:46
412.36:266:45
512.36:276:45
612.36:276:44
712.36:276:43
812.26:276:42
912.26:276:41
1012.26:276:40
1112.26:286:39
1212.26:286:38
1312.26:286:37
1412.16:286:36
1512.16:286:36
1612.16:286:35
1712.16:296:34
1812.16:296:33
1912.06:296:32
2012.06:296:31
2112.06:296:30
2212.06:296:29
2312.06:306:28
2412.06:306:27
2511.96:306:27
2611.96:306:26
2711.96:306:25
2811.96:316:24
2911.96:316:23
3011.96:316:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.08 kWh/m² in June across the year — September's 5.42 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for San Pedro de Macoris

In seasonPeak

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

San Pedro de Macoris sits in the Atlantic hurricane belt; the season peaks August–October.

San Pedro de Macoris'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 San Pedro de Macoris?

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

4.3
Sightseeing
12th-best month of the year
5.7
Beach & pool
12th-best month of the year

September is a reasonable time to visit San Pedro de Macoris for sightseeing.

What to pack for San Pedro de Macoris in September

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

In September, San Pedro de Macoris sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near San Pedro de Macoris 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 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
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in San Pedro de Macoris 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 San Pedro de Macoris peaks around March 24 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 highMar 24UV 12Dec 13UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov7Very high
Dec7High

Air quality in San Pedro de Macoris 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 Pedro de Macoris is worst in June — around 27 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2327 µg/m³Dec 218 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar11Good
Apr11Good
May18Moderate
Jun27Moderate
Jul27Moderate
Aug23Moderate
Sep18Moderate
Oct18Moderate
Nov11Good
Dec8Good
Location & terrain

Where is San Pedro de Macoris?

San Pedro de Macoris sits at 18.5°N, 69.3°W, 6 m above sea level, in Dominican Republic. The nearest listed city is Quisqueya, 15 km away.

Boca ChicaHato Mayor del ReyLa RomanaSanta Cruz de El SeiboBayaguanaSanto Domingo EsteVilla Francisca

Topography around San Pedro de Macoris

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Pedro de Macoris.

Within 3 km, the terrain around San Pedro de Macoris has only modest variations in elevation — a maximum elevation change of 24 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 72 m; within 80 km, large variations in elevation — a maximum elevation change of 684 m.

The land around San Pedro de Macoris is covered by artificial surfaces (45%) and water (20%) within 3 km, water (41%) and grassland (30%) within 16 km, and water (39%), trees (29%) and grassland (27%) within 80 km.

3 km
24 m
16 km
72 m
80 km
684 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Quisqueya 15 km · Boca Chica 31 km · Hato Mayor del Rey 35 km · La Romana 36 km · Santa Cruz de El Seibo 45 km · Bayaguana 48 km · Santo Domingo Este 57 km · Villa Francisca 61 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 Pedro de Macoris (18.4539°, -69.3086°, elevation 6 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).