September weather forecastKovalam, India

September

Weather in September

The last month of the rainy (monsoon) season, September, is also a moderately hot month in Kovalam, India, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 29.3°C (84.7°F).

Temperature

September commences with an average high-temperature of a still warm 29.3°C (84.7°F), showing little deviation from August's 28.8°C (83.8°F). Kovalam's nighttime average temperature in September subtly descends to a still warm 24.5°C (76.1°F) from the daily highs.

Heat index

September's mean heat index is appraised at a torrid 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 80%.

Rainfall

In Kovalam, in September, during 17.1 rainfall days, 100mm (3.94") of precipitation is typically accumulated. Throughout the year, there are 197.9 rainfall days, and 1051mm (41.38") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 27.5°C (81.5°F).
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 6:13 am and sunset at 6:30 pm. On the last day of September, in Kovalam, sunrise is at 6:10 am and sunset at 6:13 pm IST.

Sunshine

In September, the average sunshine is 8.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Kovalam. 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 hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 7 in September transforms into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heed this! UV intensity is much stronger when reflected off sand and water.

Frequently asked questions

In September, in Kovalam, the average high-temperature is 29.3°C (84.7°F), and the average low-temperature is 24.5°C (76.1°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 36°C (96.8°F).

The months with the highest humidity in Kovalam are August and September, with an average relative humidity of 80%.

The average relative humidity in September in Kovalam is 80%.

In Kovalam, India, in September, it is raining for 17.1 days, with typically 100mm (3.94") of accumulated precipitation.

In Kovalam, in September, the average water temperature is 27.5°C (81.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

In Kovalam, the average day length in September is 12h and 10min.

On the first day of September in Kovalam, sunrise is at 6:13 am and sunset at 6:30 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 6:13 pm IST.

In September, the average sunshine duration in Kovalam is 8.1h.

The months with the highest UV index in Kovalam are January through December, with an average maximum UV index of 7.

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Kovalam.

In September, the average daily maximum UV index in Kovalam is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kovalam, India

  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is March (32.6°C).
The month with the lowest average high temperature is August (28.8°C).

  • Average low temperature in September: 24.5°C

The month with the highest average low temperature is May (26.6°C).
The coldest month (with the lowest average low temperature) is January (23°C).

Average pressure in September
Kovalam, India

  • Average pressure in September: 1009.5mbar

The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is May (1008.1mbar).

Average wind speed in September
Kovalam, India

  • Average wind speed in September: 15.5km/h

The windiest month (with the highest average wind speed) is July (19.1km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).

Average humidity in September
Kovalam, India

  • Average humidity in September: 80%

The months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is February (68%).

Average rainfall in September
Kovalam, India

  • Average rainfall in September: 100mm

The wettest month (with the highest rainfall) is June (174mm).
The driest month (with the least rainfall) is January (10mm).

Average rainfall days in September
Kovalam, India

  • Average rainfall days in September: 17.1 days

The months with the highest number of rainy days are June and November (23 days).
The months with the least rainy days are January and February (5.6 days).

Average sea temperature in September
Kovalam, India

  • Average sea temperature in September: 27.5°C

The best month for swimming (with the highest average sea temperature) is April (29.9°C).
The coldest months (with the lowest average sea temperature) are July and August (27°C).

Average daylight in September /
Average sunshine in September
Kovalam, India

  • Average daylight in September: 12h and 12min

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 6min

The month with the most sunshine is February (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).

Average sunshine days in September
Kovalam, India

  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is November (4.9 days).

Average UV index in September
Kovalam, India

  • 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
Kovalam, India

  • Average cloud cover in September: 44

The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 14).

Average visibility in September
Kovalam, India

  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).