Río San Juan Weather in May
During May, Río San Juan experiences high daytime temperatures of 29°C (84°F) and cooler nights around 24°C (75°F). Expect quite a bit of rainfall. Around 138 mm (5.4 in) is typical.
Rainfall in Río San Juan in May
Rain is expected on roughly 13 days, totalling around 138 mm (5.4 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Río San Juan in May
May in Río San Juan brings high temperatures, with highs of 29°C (84°F) and nights around 24°C (75°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.If you prefer dry days with pleasant temperatures, January, February and March typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Río San Juan's climate page.
Río San Juan Temperature in May
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
42%
Precipitation
138 mm (5.4 in)
Rainy days
13 days
Humidity
80% *
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Río San Juan typically stay consistent throughout May, with daily highs averaging around 29°C (84°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 Río San Juan in May
Browse day-by-day weather records for Río San Juan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Río San Juan historical weather extremes in May
According to our 31 years of weather records for Río San Juan, the following extremes were recorded between 1995 and 2026.
- The hottest May day on record in Río San Juan reached 36°C (97°F) (May 23, 1995).
- Río San Juan experienced its chilliest May day on May 9, 2001, reaching only 23°C (73°F).
- The coldest night in May in Río San Juan was on May 6, 2006, with a minimum of 17°C (63°F).
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 Río San Juan in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Río San Juan 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 Río San Juan's climate page.
See the full Río San Juan climate overview or explore weather in the Dominican Republic.
