Santiago de los Caballeros climate

Name: Santiago de los Caballeros
Address: DO

Santiago de los Caballeros is warmest in August, with average highs of 33 °C, and coldest in January, when nights average 19 °C. May is the wettest month (98 mm) and July the driest (34 mm). Figures are 1991–2020 climate normals.

Across a full year Santiago de los Caballeros averages 712 mm of rain and 350 days above 25 °C.

Dominican Republic · population 1,200,000 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 33 °C
Coldest month January 19 °C
Driest month July 34 mm
Wettest month May 98 mm
Least cloud February 41 % cloud
Hottest on record June 38 °C
Coldest on record January 12 °C

What to expectSantiago de los Caballeros through the year

Santiago de los Caballeros has a clear annual cycle: average daily highs run from 27 °C in January to 33 °C in August, a swing of 4.5 °C in mean temperature across the year.

Counted across a normal year, 350 days a year reach 25 °C, 205 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in June.

Rain is strongly seasonal. May averages 98 mm against 34 mm in July — 2.9 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.4 °C	41 mm	43 %
February	28.1 °C	36 mm	41 %
March	29.1 °C	52 mm	43 %
April	30.0 °C	73 mm	47 %
May	30.7 °C	98 mm	61 %
June	32.3 °C	51 mm	59 %
July	32.7 °C	34 mm	52 %
August	32.9 °C	54 mm	56 %
September	32.4 °C	81 mm	59 %
October	31.0 °C	82 mm	58 %
November	28.7 °C	65 mm	55 %
December	27.7 °C	46 mm	47 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	27.4 °C	19.0 °C	22.5 °C	32.7 °C	12.2 °C	27	3
February	28.1 °C	19.1 °C	22.8 °C	33.6 °C	13.4 °C	26	6
March	29.1 °C	19.4 °C	23.5 °C	34.7 °C	13.8 °C	29	12
April	30.0 °C	20.4 °C	24.4 °C	37.3 °C	15.4 °C	29	15
May	30.7 °C	21.5 °C	25.3 °C	36.8 °C	17.0 °C	31	20
June	32.3 °C	22.4 °C	26.6 °C	37.6 °C	20.0 °C	30	27
July	32.7 °C	22.9 °C	26.9 °C	37.4 °C	20.0 °C	31	30
August	32.9 °C	23.0 °C	27.0 °C	36.8 °C	20.7 °C	31	30
September	32.4 °C	22.5 °C	26.5 °C	36.7 °C	19.7 °C	30	28
October	31.0 °C	21.9 °C	25.6 °C	35.9 °C	18.2 °C	31	23
November	28.7 °C	20.9 °C	24.1 °C	33.5 °C	15.8 °C	29	9
December	27.7 °C	19.7 °C	23.0 °C	32.7 °C	14.4 °C	28	4

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	41 mm	8	11 h/day	43 %	78 %	14 km/h
February	36 mm	7	12 h/day	41 %	75 %	14 km/h
March	52 mm	9	12 h/day	43 %	73 %	14 km/h
April	73 mm	13	13 h/day	47 %	74 %	14 km/h
May	98 mm	17	13 h/day	61 %	75 %	13 km/h
June	51 mm	10	13 h/day	59 %	72 %	15 km/h
July	34 mm	9	13 h/day	52 %	71 %	17 km/h
August	54 mm	10	13 h/day	56 %	72 %	16 km/h
September	81 mm	14	12 h/day	59 %	75 %	13 km/h
October	82 mm	15	12 h/day	58 %	78 %	12 km/h
November	65 mm	12	11 h/day	55 %	80 %	13 km/h
December	46 mm	8	11 h/day	47 %	79 %	14 km/h

How Santiago de los Caballeros compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Santiago de los Caballeros	33 °C	19 °C	712 mm	350
Santo Domingo · Dominican Republic	30 °C	20 °C	1,001 mm	363
San Pedro de Macorís · Dominican Republic	31 °C	22 °C	737 mm	364
Dessalines · Haiti	34 °C	21 °C	966 mm	365
Delmas · Haiti	33 °C	21 °C	1,454 mm	364
Pétionville · Haiti	31 °C	19 °C	1,532 mm	363
Port-au-Prince · Haiti	34 °C	21 °C	1,454 mm	365

Where Santiago de los Caballeros ranks

Ranking	Position	Value
The warmest places in North America in October	13thof 50	31 °C
The warmest places in North America year-round	23rdof 50	30 °C
The warmest places in North America in November	24thof 50	29 °C
The warmest places in North America in September	25thof 50	32 °C
The warmest places in North America in December	37thof 50	28 °C
The warmest places in North America in January	37thof 50	27 °C

Planning a trip? See the best time to visit Santiago de los Caballeros.

QuestionsCommon questions about Santiago de los Caballeros’s climate

When is the best time to visit Santiago de los Caballeros?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, December sit closest to 20 °C on average, August is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Santiago de los Caballeros get?

In August, the warmest month, daily highs average 33 °C. About 205 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 19 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Santiago de los Caballeros?

May, averaging 98 mm over 17 days with rain. The driest month is July with 34 mm. The year as a whole averages 712 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Santiago de los Caballeros rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.