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San Marcos Weather in May
May in San Marcos sees daytime temperatures around 33°C (91°F) and lows of 24°C (75°F) at night. With around 211 mm (8.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in San Marcos in May
Rain is expected on roughly 18 days, totalling around 211 mm (8.3 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in San Marcos in May
San Marcos in May gets highs of 33°C (91°F) during the day and drops to 24°C (75°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in San Marcos in May
Expect sunny days throughout the month, with an estimated 231 hours of sunshine. This makes it a pleasant time to visit San Marcos.May in San Marcos can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
San Marcos Temperature in May
Min Temperature
24°C (75°F)
Max Temperature
33°C (91°F)
Chance of Rain
59%
Precipitation
211 mm (8.3 in)
Rainy days
18 days
Humidity
70% *
Sunshine
231 hours *
Percentage Sunshine
*
* Data from: Managua, Nicaragua (27 KM, 17 Miles).
San Marcos Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Marcos - and find the best time to visit.
Daily Historical Temperatures
30-year average (1987-2025)
Based on our historical records, temperatures in San Marcos typically stay consistent throughout May, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in May
Historical weather records for San Marcos in May
Browse day-by-day weather records for San Marcos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Marcos historical weather extremes in May
Based on 29 years of weather observations (1997-2026), these are the most extreme conditions recorded in San Marcos.
- The hottest May day on record in San Marcos reached 38°C (100°F) (May 12, 1998).
- The lowest daytime temperature in May was 26°C (79°F), recorded on May 26, 2019.
- The coldest night in May in San Marcos was on May 15, 2021, with a minimum of 21°C (70°F).
Best Places in Nicaragua in May
Find out more about the weather in Nicaragua and which places have the best travel conditions in this month. See all of Nicaragua in May →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in San Marcos in May
Pack for serious heat in San Marcos in May. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. It's going to pour! Pack a good poncho and prepare for very wet conditions. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in San Marcos in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
San Marcos 3-Day Forecast
More climate data for San Marcos
Temperature Rainfall Sunshine Humidity
See the full San Marcos climate overview or explore weather in Nicaragua.
Popular in May
Where to go in May - average daytime high across popular destinations.
Managua
35°C (95°F) León33°C (91°F) Granada32°C (90°F) Popoyo32°C (90°F) Estelí32°C (90°F) Moyogalpa30°C (86°F) San Juan del Sur31°C (88°F) Big Corn Island29°C (84°F) Bucket list
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