Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Zancudo in September witnesses an average high-temperature of a still warm 28.4°C (83.1°F), indicating a slight variation from August's 28.6°C (83.5°F). The average temperature during September nights is registered at an agreeable 21.9°C (71.4°F).Heat index
September's heat index is calculated to be a tropical 34°C (93.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in September is 85%.Rainfall
In September, in Zancudo, the rain falls for 28.6 days. Throughout September, 183mm (7.2") of precipitation is accumulated. Throughout the year, there are 309.5 rainfall days, and 2106mm (82.91") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 10min.On the first day of the month, sunrise is at 05:24 and sunset at 17:40. On the last day of September, in Zancudo, sunrise is at 05:20 and sunset at 17:23 CST.
Sunshine
The average sunshine in September in Zancudo, Costa Rica, is 8.7h.UV index
January, February, June through December, with an average maximum UV index of 6, are months with the lowest UV index in Zancudo. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Zancudo?
What is the average humidity in September in Zancudo?
How much does it rain in Zancudo in September?
How many hours of daylight does Zancudo have in September?
What time are sunrise and sunset in September in Zancudo?
How long on average sun shines in September in Zancudo?
What are the months with the lowest UV index in Zancudo?
What is the UV index intensity in September in Zancudo?
Average temperature in September
Zancudo, Costa Rica
- Average high temperature in September: 28.4°C
The warmest month (with the highest average high temperature) is March (31.7°C).
The month with the lowest average high temperature is October (27.6°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is May (22.7°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in September
Zancudo, Costa Rica
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The months with the lowest atmospheric pressure are October and November (1010.8mbar).
Average wind speed in September
Zancudo, Costa Rica
- Average wind speed in September: 4.9km/h
The windiest month (with the highest average wind speed) is March (6km/h).
The calmest months (with the lowest average wind speed) are July and August (4.5km/h).
Average humidity in September
Zancudo, Costa Rica
- Average humidity in September: 85%
The months with the highest relative humidity are October and November (86%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Zancudo, Costa Rica
- Average rainfall in September: 183mm
The wettest month (with the highest rainfall) is October (286mm).
The driest month (with the least rainfall) is February (34mm).
Average rainfall days in September
Zancudo, Costa Rica
- Average rainfall days in September: 28.6 days
The month with the highest number of rainy days is July (30.7 days).
The month with the least rainy days is February (14.3 days).
Average daylight in September /
Average sunshine in September
Zancudo, Costa Rica
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 36min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).
Average sunshine days in September
Zancudo, Costa Rica
- Average sunshine days in September: 1 days
The month with the most sunshine days is January (9.1 days).
The month with the least sunshine days is August (0.1 days).
Average UV index in September
Zancudo, Costa Rica
- Average UV index in September: 6
The months with the highest UV index are March, April and May (UV index 7).
The months with the lowest UV index are January, February, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Zancudo, Costa Rica
- Average cloud cover in September: 43
The month with the most cloud cover is October (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in September
Zancudo, Costa Rica
- Average visibility in September: 9km
The months with the highest visibility are January, February, March and April (10km).
The month with the lowest visibility is November (8km).
Zancudo, Costa Rica
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