San José del Sur Weather in September
September in San José del Sur averages 29°C (84°F) during the day and 25°C (77°F) at night. September is part of the rainy season, with around 286 mm (11 in) of rainfall and frequent showers.
Rainfall in San José del Sur in September
As part of the rainy season, San José del Sur sees around 23 days of rain in September, with an average of 286 mm (11 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in San José del Sur in September
Daytime temperatures in San José del Sur reach 29°C (84°F) in September, dropping to 25°C (77°F) at night. This kind of day-to-night contrast is typical for this time of year. 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 José del Sur in September
The area experiences a moderate amount of sunshine, with approximately 150 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.September in San José del Sur 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.
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 José del Sur's climate page.
San José del Sur Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
78%
Precipitation
286 mm (11 in)
Rainy days
23 days
Sunshine
150 hours *
Percentage Sunshine
*
Daily Historical Temperatures
33-year average (1983-2025)
Based on our historical records, temperatures in San José del Sur typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Historical weather for San José del Sur in September
Browse day-by-day weather records for San José del Sur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San José del Sur historical weather extremes in September
Our historical data for San José del Sur spans 2004 to 2025, revealing these weather extremes.
- The hottest September day on record in San José del Sur reached 34°C (93°F) (September 18, 2019).
- On September 26, 2010, San José del Sur saw its coldest September day with temperatures maxing out at 26°C (79°F).
- The lowest overnight temperature recorded in September was 21°C (70°F) (September 12, 2009).
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 →
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What to Wear in San José del Sur in September
Warm but pleasant conditions in San José del Sur in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in San José 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 José del Sur's climate page.
See the full San José del Sur climate overview or explore weather in Nicaragua.
