Santiago de los Caballeros weather in May

In May, Santiago de los Caballeros sees average daytime highs of 31°C and overnight lows near 21°C, with 99 mm of rain across 16.8 wet days and about 12.9 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of May to 13 h 06 min by month's end. Set against the rest of the year, May is Santiago de los Caballeros's 12th-clearest and 7th-windiest month. For the whole year in context, see Santiago de los Caballeros's year-round climate.

Daytime high
31°
6th warmest
Overnight low
21°
7th coldest
Rainfall
99 mm
16.8 wet days
Daylight
12 h 54 min
6:12 AM – 7:07 PM
Cloud cover
62%
12th clearest
Wind
8 km/h
7th windiest
Solar energy
6.17 kWh/m²
Travel score
4.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Santiago de los Caballeros reaches about 31°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, May runs about 1°C warmer than April and about 1°C cooler than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183121
193121
203121
213121
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How May really feels in Santiago de los Caballeros

Once humidity and wind are folded in, May averages 22 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
22
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Santiago de los Caballeros weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°377.6117.1
Feb28° / 19°346.911.36.9
Mar29° / 19°489.211.95.9
Apr30° / 20°7212.412.45.0
May31° / 21°9916.812.94.0
Jun32° / 22°5011.213.23.9
Jul32° / 23°339.513.14.0
Aug32° / 23°5210.812.73.7
Sep32° / 22°8114.812.13.5
Oct31° / 22°8115.111.64.0
Nov29° / 20°6412.811.15.2
Dec28° / 19°377.810.86.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46436
56436
66337
76238
86139
96040
105842
115743
125545
135248
145149
154951
164753
174555
184357
194159
203961
213862
223763
233763
243664
253565
263664
273664
283664
293664
303763
313763

Chance of precipitation in May

Any precipitation

Santiago de los Caballeros gets around 99 mm of rain over 16.8 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 54% and peaks near 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
248
348
449
549
649
750
851
951
1052
1153
1253
1354
1454
1554
1655
1755
1855
1955
2056
2156
2257
2357
2457
2557
2657
2757
2857
2956
3055
3154

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
1157213
2157213
3157114
4147214
5147115
6137215
7127216
8127117
9117118
10107119
1197120
1297021
1386923
1476924
1566925
1666727
1756728
1856629
1946630
2046531
2146432
2236433
2336334
2436235
2526236
2626137
2726038
2826038
2916039
3015940
3115940

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 6:19 AM to 6:08 AM, and sunset from 7:01 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:197:01
212.76:187:01
312.76:187:02
412.76:177:02
512.86:177:02
612.86:167:03
712.86:167:03
812.86:157:03
912.86:157:04
1012.86:147:04
1112.86:147:05
1212.96:137:05
1312.96:137:05
1412.96:127:06
1512.96:127:06
1612.96:127:07
1712.96:117:07
1812.96:117:07
1913.06:107:08
2013.06:107:08
2113.06:107:08
2213.06:107:09
2313.06:097:09
2413.06:097:10
2513.06:097:10
2613.06:097:11
2713.06:087:11
2813.16:087:11
2913.16:087:12
3013.16:087:12
3113.16:087:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.17 kWh/m².

For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 6.63 kWh/m² in June across the year — May's 6.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Santiago de los Caballeros

In seasonPeak

None of Santiago de los Caballeros's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Santiago de los Caballeros 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 May a good time to visit Santiago de los Caballeros?

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

4.0
Sightseeing
7th-best month of the year
5.7
Beach & pool
11th-best month of the year

May is a reasonable time to visit Santiago de los Caballeros for sightseeing.

What to pack for Santiago de los Caballeros in May

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

In May, Santiago de los Caballeros sees daytime highs around 31°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Santiago de los Caballeros in May

The nearest coast averages about 27°C in May — 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
Apr26Warm
May27Warm
Jun28Warm
Jul28Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Santiago de los Caballeros in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Santiago de los Caballeros peaks around March 22 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 22UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct10Very high
Nov7Very high
Dec7High

Air quality in Santiago de los Caballeros in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Santiago de los Caballeros is worst in June — around 30 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (February, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2030 µg/m³Feb 2016 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb16Moderate
Mar16Moderate
Apr18Moderate
May23Moderate
Jun30Moderate
Jul28Moderate
Aug25Moderate
Sep26Moderate
Oct27Moderate
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Santiago de los Caballeros?

Santiago de los Caballeros sits at 19.5°N, 70.7°W, 209 m above sea level, in Dominican Republic. The nearest listed city is Tamboril, 9.0 km away.

Villa BisonóRío GrandeSalcedoLa VegaMonte LlanoEsperanza

Topography around Santiago de los Caballeros

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santiago de los Caballeros.

Within 3 km, the terrain around Santiago de los Caballeros has only modest variations in elevation — a maximum elevation change of 110 m around an average of 191 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,141 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,073 m.

The land around Santiago de los Caballeros is covered by artificial surfaces (71%) and trees (25%) within 3 km, trees (60%) and grassland (24%) within 16 km, and trees (55%) and water (21%) within 80 km.

3 km
110 m
16 km
1,141 m
80 km
3,073 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Tamboril 9.0 km · Moca 19 km · Villa Bisonó 23 km · Río Grande 25 km · Salcedo 30 km · La Vega 31 km · Monte Llano 33 km · Esperanza 34 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 Santiago de los Caballeros (19.4504°, -70.6908°, elevation 209 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).