San Salvador Weather in May
May in San Salvador brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 23°C (73°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.
Rainfall in San Salvador in May
As part of the rainy season, San Salvador sees around 18 days of rain in May, with an average of 242 mm (9.5 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in San Salvador in May
Daytime highs in San Salvador in May reach 32°C (90°F), with nights around 23°C (73°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights are warm at 23°C (73°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in San Salvador in May
The days are predominantly sunny, with an estimated total of around 219 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.
Wind Speed in San Salvador in May
May sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.May in San Salvador has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our San Salvador's climate page.
San Salvador Temperature in May
Min Temperature
23°C (73°F)
Max Temperature
32°C (90°F)
Chance of Rain
59%
Precipitation
242 mm (9.5 in)
Rainy days
18 days
Humidity
80%
Windspeed
2 m/s (4 knots)
Sunshine
219 hours
Percentage Sunshine
Daily Historical Temperatures
39-year average (1977-2025)
Based on our historical records, temperatures in San Salvador typically stay consistent throughout May, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in May
Daily Historical Precipitation
39-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for San Salvador in May
Browse day-by-day weather records for San Salvador spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Salvador historical weather extremes in May
The extremes listed below come from historical weather data collected in San Salvador from 2002 through 2026.
- The hottest May day on record in San Salvador reached 39°C (102°F) (May 15, 2012).
- San Salvador experienced its chilliest May day on May 27, 2010, reaching only 24°C (75°F).
- Nighttime temperatures dropped to 17°C (63°F) on May 19, 2005, marking the coldest May night on record.
Best Places in El Salvador in May
Find out more about the weather in El Salvador and which places have the best travel conditions in this month. See all of El Salvador in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Salvador 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in San Salvador 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 El Salvador, check out our San Salvador's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full San Salvador climate overview or explore weather in El Salvador.
