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With daytime temperatures of 30°C (86°F) and nighttime lows of 26°C (79°F), May in Barra de Santiago brings very high temperatures during the day. Do keep in mind that May is part of the rainy season, with frequent and often heavy rainfall.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March and December typically offer the best weather for Barra de Santiago.
Pick a month to see the average temperature, rainfall and sunshine in Barra de Santiago - and find the best time to visit.
Browse day-by-day weather records for Barra de Santiago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Barra de Santiago from 2005 through 2026.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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! Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Barra de Santiago climate overview or explore weather in El Salvador.
Where to go in May - average daytime high across popular destinations.
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