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
In Hikkaduwa, August and September are characterised by the lowest temperatures, recording an average high of 28.3°C (82.9°F).Heat index
During September, the heat index is evaluated at a tropical 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.For clarity, heat index numbers account for light winds and areas under shade. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
June and September, with an average relative humidity of 82%, are the most humid months.Rainfall
In Hikkaduwa, during September, the rain falls for 24.5 days and regularly aggregates up to 222mm (8.74") of precipitation. In Hikkaduwa, during the entire year, the rain falls for 286.9 days and collects up to 1974mm (77.72") of precipitation.Sea temperature
In Hikkaduwa, in September, the average water temperature is 28.1°C (82.6°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.
Daylight
In Hikkaduwa, the average length of the day in September is 12h and 9min.On the first day of September in Hikkaduwa, sunrise is at 06:02 and sunset at 18:16. On the last day of the month, sunrise is at 05:57 and sunset at 18:01 +0530.
Sunshine
In Hikkaduwa, the average sunshine in September is 8.5h.UV index
The months with the lowest UV index are May and September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
Frequently asked questions
What month is the coldest in Hikkaduwa?
How hot is September in Hikkaduwa?
What is the most humid month in Hikkaduwa?
What is the average humidity in September in Hikkaduwa?
How many days does it rain in September in Hikkaduwa?
What is the water temperature in September in Hikkaduwa?
What is the average length of the day in September in Hikkaduwa?
When are sunrise and sunset in September in Hikkaduwa?
How long on average sun shines in September in Hikkaduwa?
What is the month with the lowest UV index in Hikkaduwa?
What is the UV index intensity in September in Hikkaduwa?
Average temperature in September
Hikkaduwa, Sri Lanka
- Average high temperature in September: 28.3°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in September
Hikkaduwa, Sri Lanka
- Average pressure in September: 1010.2mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in September
Hikkaduwa, Sri Lanka
- Average wind speed in September: 17.3km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in September
Hikkaduwa, Sri Lanka
- Average humidity in September: 82%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in September
Hikkaduwa, Sri Lanka
- Average rainfall in September: 222mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Hikkaduwa, Sri Lanka
- Average rainfall days in September: 24.5 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average sea temperature in September
Hikkaduwa, Sri Lanka
- Average sea temperature in September: 28.1°C
The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is August (27.5°C).
Average daylight in September /
Average sunshine in September
Hikkaduwa, Sri Lanka
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Hikkaduwa, Sri Lanka
- Average sunshine days in September: 2.4 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in September
Hikkaduwa, Sri Lanka
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in September
Hikkaduwa, Sri Lanka
- Average cloud cover in September: 50
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in September
Hikkaduwa, Sri Lanka
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
Hikkaduwa, Sri Lanka
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