La Romana climate

Dominican Republic · 18.42°N, 68.97°W · elevation 9 m · population 208,437

Warmest month
August
high 32 °C89 °F
Coldest month
January
low 22 °C72 °F
Wettest month
November
78 mm3.1 in
Best time to visit
December–February
by our comfort score
Annual precipitation
609 mm24 in
March driest
Year average
28 °C82 °F
hot semi-arid (BSh)

La Romana (Dominican Republic) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 28 °C82 °F, and about 609 mm24 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
20°25°30°35°70°80°90°JFMAMJJASOND32°89°22°72°January: high 29 °C / 85 °F, low 22 °C / 72 °FFebruary: high 30 °C / 86 °F, low 22 °C / 72 °FMarch: high 31 °C / 87 °F, low 23 °C / 73 °FApril: high 31 °C / 88 °F, low 24 °C / 75 °FMay: high 31 °C / 88 °F, low 25 °C / 77 °FJune: high 31 °C / 89 °F, low 26 °C / 78 °FJuly: high 32 °C / 89 °F, low 26 °C / 79 °FAugust: high 32 °C / 89 °F, low 26 °C / 79 °FSeptember: high 32 °C / 89 °F, low 26 °C / 78 °FOctober: high 31 °C / 88 °F, low 25 °C / 78 °FNovember: high 30 °C / 87 °F, low 24 °C / 76 °FDecember: high 30 °C / 85 °F, low 23 °C / 74 °F

Precipitation by month

Precipitation per month (mminches)
0204060800123JJanuary: 38 mm / 1.5 inFFebruary: 27 mm / 1.0 inMMarch: 25 mm / 1.0 inAApril: 46 mm / 1.8 inMMay: 67 mm / 2.7 inJJune: 46 mm / 1.8 inJJuly: 49 mm / 1.9 inAAugust: 59 mm / 2.3 inSSeptember: 65 mm / 2.6 inOOctober: 62 mm / 2.5 inNNovember: 78 mm / 3.1 inDDecember: 47 mm / 1.9 in783.1

La Romana climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan298522722679381.5
Feb308622722679271.0
Mar318723732780251.0
Apr318824752882461.8
May318825772883672.7
Jun318926782883461.8
Jul328926792984491.9
Aug328926792984592.3
Sep328926782984652.6
Oct318825782883622.5
Nov308724762781783.1
Dec308523742680471.9
Year32892272288260924

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan71%36%4.611:08
Feb68%33%5.311:31
Mar65%35%5.911:00
Apr66%40%6.312:32
May71%54%6.112:00
Jun74%53%6.113:14
Jul73%45%6.313:08
Aug73%44%6.112:45
Sep74%51%5.712:13
Oct76%51%5.011:41
Nov75%45%4.511:14
Dec73%36%4.311:02

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of La Romana is like

The warmest month is August, with an average high of 32 °C89 °F and a low of 26 °C79 °F. The coldest is January, when highs average 29 °C85 °F and lows 22 °C72 °F. Seasonal differences are small — just 3.1 °C5.6 °F between the warmest and the coolest month.

Annual precipitation is moderate at about 609 mm24 in. The wettest three-month stretch is September–November, which brings 34% of the annual total. The wettest month is November (78 mm3.1 in), the driest is March (25 mm1.0 in).

Relative humidity ranges from 65% in March to 76% in October. The clearest skies (lowest average cloud amount, 33%) are typical of February. Average wind speed near the ground ranges from 12 km/h (7 mph) in October to 16 km/h (10 mph) in February. Daylight lasts from about 11.0 hours in December to 13.2 hours in June.

Best time to visit La Romana

Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–February: average highs of 29 °C85 °F to 30 °C86 °F with 27 mm1.0 in to 47 mm1.9 in of precipitation per month.

The most challenging month is September, which is hot, with average highs of 32 °C89 °F.

Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for La Romana

  • Wetter months (May, August–November) — highs 3087 to 32 °C89 °F, lows 2476 to 26 °C79 °F, about 66 mm2.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
  • Drier months (December–April, June and July) — highs 2985 to 32 °C89 °F, lows 2272 to 26 °C79 °F, about 40 mm1.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.

How La Romana compares

Compared with San Pedro de Macorís, about 36 km to the west, La Romana has practically the same average temperature and receives a similar amount of precipitation.

Of the 9 places in the Dominican Republic covered by World Climates, La Romana is the warmest by annual mean temperature and the 5th wettest by annual precipitation. See all of them on the Dominican Republic climate page.

Places in other countries with the most similar temperature and rainfall pattern: Cap-Haïtien (Haiti, BSh), Port-de-Paix (Haiti, Aw) and Dessalines (Haiti, BSh).

The same NASA POWER grid cell also contains Salvaleón de Higüey (pop. 123,787). Their long-term averages in this dataset are essentially the same as for La Romana, so they do not have separate pages.

Nearby places

All places in the Dominican Republic

Frequently asked questions

What is the warmest month in La Romana?

August is the warmest month in La Romana, with an average high of 32 °C (89 °F) and an average low of 26 °C (79 °F).

What is the coldest month in La Romana?

January is the coldest month, with an average high of 29 °C (85 °F) and an average low of 22 °C (72 °F).

When does it rain the most in La Romana?

November is the wettest month with about 78 mm (3.1 in) of precipitation; March is the driest with about 25 mm (1.0 in).

What is the best time to visit La Romana?

Judging by long-term averages, the most comfortable months are December–February.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 61 m, while La Romana lies at about 9 m. Temperatures on this page were therefore adjusted by +0.3 °C0.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method