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 sea temperature 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
On the advent of September, Herradura's average high-temperature exhibits a minor adjustment to a still moderately hot 28.5°C (83.3°F) from August's 28.8°C (83.8°F). In September, Herradura's nights cool slightly to a consistent average temperature of 25.3°C (77.5°F).Heat index
During September, the heat index is computed to be a tropical 33°C (91.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in September is 79%.Rainfall
In Herradura, in September, it is raining for 23.6 days, with typically 131mm (5.16") of accumulated precipitation. In Herradura, during the entire year, the rain falls for 236.2 days and collects up to 1501mm (59.09") of precipitation.Sea temperature
January, February, September through December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Herradura.Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.
Daylight
In Herradura, the average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 05:29 and sunset at 17:47. On the last day of the month, sunrise is at 05:27 and sunset at 17:29 CST.
Sunshine
The average sunshine in September is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Herradura. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 7 in September translates into these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Frequently asked questions
How hot does it get in Herradura in September?
What is the average humidity in September in Herradura?
How much does it rain in Herradura in September?
What months are the sea coldest in Herradura?
How warm is the water in September in Herradura?
What is the average length of the day in September in Herradura?
What time are sunrise and sunset in September in Herradura?
How long on average sun shines in September in Herradura?
What are the months with the highest UV index in Herradura?
When is the lowest UV index in Herradura?
What is the UV index reading in September in Herradura?
Average temperature in September
Herradura, Costa Rica
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is October (28.1°C).
- Average low temperature in September: 25.3°C
The months with the highest average low temperature are April and May (26.2°C).
The coldest month (with the lowest average low temperature) is January (24.5°C).
Average pressure in September
Herradura, Costa Rica
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Herradura, Costa Rica
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is March (9.7km/h).
The calmest month (with the lowest average wind speed) is June (7.6km/h).
Average humidity in September
Herradura, Costa Rica
- Average humidity in September: 79%
The months with the highest relative humidity are June and October (80%).
The months with the lowest relative humidity are February and March (68%).
Average rainfall in September
Herradura, Costa Rica
- Average rainfall in September: 131mm
The wettest month (with the highest rainfall) is October (383mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in September
Herradura, Costa Rica
- Average rainfall days in September: 23.6 days
The month with the highest number of rainy days is October (26.1 days).
The month with the least rainy days is February (7.8 days).
Average sea temperature in September
Herradura, Costa Rica
- Average sea temperature in September: 28°C
The best months for swimming (with the highest average sea temperature) are March, April, May, June, July and August (29°C).
The coldest months (with the lowest average sea temperature) are January, February, September, October, November and December (28°C).
Average daylight in September /
Average sunshine in September
Herradura, Costa Rica
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is October (Average sunshine: 8h and 6min).
Average sunshine days in September
Herradura, Costa Rica
- Average sunshine days in September: 5.9 days
The month with the most sunshine days is March (18.6 days).
The month with the least sunshine days is May (4.3 days).
Average UV index in September
Herradura, Costa Rica
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Herradura, Costa Rica
- Average cloud cover in September: 39
The month with the most cloud cover is October (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 13).
Average visibility in September
Herradura, Costa Rica
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).
Herradura, Costa Rica
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