San Juan del Sur Weather in September
In San Juan del Sur, September brings high daytime temperatures around 29°C (84°F), with nights cooling to 25°C (77°F). Expect quite a bit of rainfall this month.
Rainfall in San Juan del Sur in September
This month experiences about 24 days of rain according to historical data, averaging 266 mm (10 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in San Juan del Sur in September
Daytime highs in San Juan del Sur in September reach 29°C (84°F), with nights around 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in San Juan del Sur in September
The area enjoys a balanced 150 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in San Juan del Sur in September
September 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.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit San Juan del Sur. 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 Nicaragua, check out our San Juan del Sur's climate page.
San Juan del Sur Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
78%
Precipitation
266 mm (10 in)
Rainy days
24 days
Windspeed
2 m/s (4 knots)
Sunshine
150 hours
Percentage Sunshine
Historical weather for San Juan del Sur in September
Browse day-by-day weather records for San Juan del Sur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Juan del Sur historical weather extremes in September
Based on weather observations in San Juan del Sur between 2004 and 2025, these are the recorded extremes during September.
- The hottest September day on record in San Juan del Sur reached 35°C (95°F) (September 8, 2014).
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 24, 2010.
- Nighttime temperatures dropped to 21°C (70°F) on September 26, 2021, marking the coldest September night on record.
Best Places in Nicaragua in September
Find out more about the weather in Nicaragua and which places have the best travel conditions in this month. See all of Nicaragua in September →
perfect weather
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What to Wear in San Juan del Sur in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in San Juan del Sur in September
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 Nicaragua, check out our San Juan del Sur's climate page.
Temperature Rainfall Sunshine Wind Speed
See the full San Juan del Sur climate overview or explore weather in Nicaragua.
