Santiago Weather in May
May in Santiago sees daytime temperatures around 31°C (88°F) and lows of 21°C (70°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in Santiago in May
Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Typically, about 13 days will experience rainfall, with an average of 118 mm (4.6 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Santiago in May
May in Santiago sees highs of 31°C (88°F) and lows of 21°C (70°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights are mild at around 21°C (70°F), which is comfortable for most people.
Sunshine in Santiago in May
Enjoy a sunny month with about 244 hours of sunshine, the clear skies make Santiago even more beautiful.
Wind Speed in Santiago in May
May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit Santiago. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santiago's climate page.
Santiago Temperature in May
Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Chance of Rain
42%
Precipitation
118 mm (4.6 in)
Rainy days
13 days
Humidity
75%
Windspeed
3 m/s (6 knots)
Sunshine
244 hours
Percentage Sunshine
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Santiago typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in May
Daily Historical Precipitation
45-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Santiago in May
Browse day-by-day weather records for Santiago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santiago historical weather extremes in May
Based on 31 years of weather observations (1995-2026), these are the most extreme conditions recorded in Santiago.
- On May 9, 2023, temperatures climbed to 36°C (97°F), marking the warmest May day on record.
- Santiago experienced its chilliest May day on May 9, 2001, reaching only 24°C (75°F).
- Nighttime temperatures dropped to 17°C (63°F) on May 6, 2006, marking the coldest May night on record.
Best Places in the Dominican Republic in May
Find out more about the weather in the Dominican Republic and which places have the best travel conditions in this month. See all of the Dominican Republic in May →
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What to Wear in Santiago in May
Warm but pleasant conditions in Santiago in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Santiago in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santiago's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Santiago climate overview or explore weather in the Dominican Republic.
