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El Castillo de La Concepción Weather in September
During September, El Castillo de La Concepción experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 23°C (73°F). September sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in El Castillo de La Concepción in September
El Castillo de La Concepción is in the rainy season in September, with rain on around 23 days and an average of 310 mm (12 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in El Castillo de La Concepción in September
Daytime temperatures in El Castillo de La Concepción reach 31°C (88°F) in September, dropping to 23°C (73°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With overnight lows of 23°C (73°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.September in El Castillo de La Concepción 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.
El Castillo de La Concepción Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
31°C (88°F)
Chance of Rain
75%
Precipitation
310 mm (12 in)
Rainy days
23 days
Humidity
88% *
* Data from: Los Chiles, Costa Rica (34 KM, 21 Miles).
El Castillo de La Concepción Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in El Castillo de La Concepción - and find the best time to visit.
Historical weather records for El Castillo de La Concepción in September
Browse day-by-day weather records for El Castillo de La Concepción spanning 23 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
El Castillo de La Concepción historical weather extremes in September
The extremes listed below come from historical weather data collected in El Castillo de La Concepción from 2006 through 2026.
- El Castillo de La Concepción recorded its highest September temperature of 35°C (95°F) on September 14, 2023.
- The lowest daytime temperature in September was 24°C (75°F), recorded on September 3, 2014.
- The lowest overnight temperature recorded in September was 21°C (70°F) (September 20, 2014).
- The heaviest September precipitation occurred on September 23, 2009, when 135 mm (5.3 in) of precipitation fell.
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
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 El Castillo de La Concepción in September
Warm temperatures in September 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!
What To Do in El Castillo de La Concepción in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
El Castillo de La Concepción 3-Day Forecast
More climate data for El Castillo de La Concepción
See the full El Castillo de La Concepción climate overview or explore weather in Nicaragua.
Popular in September
Where to go in September - average daytime high across popular destinations.
Managua
33°C (91°F) León32°C (90°F) Popoyo30°C (86°F) Estelí30°C (86°F) Granada31°C (88°F) Big Corn Island29°C (84°F) Moyogalpa29°C (84°F) San Juan del Sur29°C (84°F) Bucket list
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