September weather forecastSébaco, Nicaragua
September
Weather in September
September's weather in Sébaco, Nicaragua stays true to the preceding month's pattern of constant rainfall, with an average rainfall of 179mm (7.05"). Notably, this month sees the year's least number of sunshine days at 1.3, indicating more cloud coverage. September brings with it a gradual decrease in total daylight hours to 12.2 hours. Accompanying the reduction in temperature, the wind speed slows down to an average of 7km/h (4.3mph). While outdoor activities might be limited due to the rainfall, the qualified September weather also comes as a relief from the August heat.Temperature
The arrival of September sees an average high-temperature of a still warm 27.8°C (82°F), hardly diverging from August's 28.4°C (83.1°F). Throughout the month of September, Sébaco witnesses an average temperature of 19.8°C (67.6°F).Heat index
The heat index for September is calculated to be a tropical 33°C (91.4°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The average relative humidity in September is 88%.Rainfall
In Sébaco, in September, during 27.4 rainfall days, 179mm (7.05") of precipitation is typically accumulated. In Sébaco, during the entire year, the rain falls for 210.4 days and collects up to 1192mm (46.93") of precipitation.Daylight
In Sébaco, the average length of the day in September is 12h and 12min.On the first day of September in Sébaco, Nicaragua, sunrise is at 05:33 and sunset at 17:54. On the last day of the month, sunrise is at 05:33 and sunset at 17:34 CST.
Sunshine
The average sunshine in September in Sébaco is 7.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sébaco, Nicaragua
- Average high temperature in September: 27.8°C
The warmest month (with the highest average high temperature) is April (32°C).
The month with the lowest average high temperature is October (26.7°C).
- Average low temperature in September: 19.8°C
The month with the highest average low temperature is May (21.3°C).
The coldest month (with the lowest average low temperature) is December (17.6°C).
Average pressure in September
Sébaco, Nicaragua
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in September
Sébaco, Nicaragua
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is February (15km/h).
The calmest month (with the lowest average wind speed) is October (6.6km/h).
Average humidity in September
Sébaco, Nicaragua
- Average humidity in September: 88%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is April (64%).
Average rainfall in September
Sébaco, Nicaragua
- Average rainfall in September: 179mm
The wettest month (with the highest rainfall) is October (266mm).
The driest month (with the least rainfall) is January (4mm).
Average rainfall days in September
Sébaco, Nicaragua
- Average rainfall days in September: 27.4 days
The month with the highest number of rainy days is October (29.5 days).
The month with the least rainy days is January (5.9 days).
Average daylight in September /
Average sunshine in September
Sébaco, Nicaragua
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is March (Average sunshine: 9h and 30min).
The month with the least sunshine is October (Average sunshine: 6h and 36min).
Average sunshine days in September
Sébaco, Nicaragua
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is March (18.8 days).
The month with the least sunshine days is October (1 days).
Average UV index in September
Sébaco, Nicaragua
- Average UV index in September: 6
The months with the highest UV index are March and April (UV index 7).
The months with the lowest UV index are May and August (UV index 5).
Average cloud cover in September
Sébaco, Nicaragua
- Average cloud cover in September: 56
The month with the most cloud cover is October (Cloud cover 60).
The month with the least cloud cover is March (Cloud cover 23).
Average visibility in September
Sébaco, Nicaragua
- Average visibility in September: 6km
The months with the highest visibility are March and April (10km).
The months with the lowest visibility are September and October (6km).





