September weather forecast
Thrissur, India

September, the last month of the rainy (monsoon) season in Thrissur, is another warm month, with an average temperature varying between 28.8°C (83.8°F) and 23.3°C (73.9°F).

Temperature

The beginning of September records an average high-temperature of a still moderately hot 28.8°C (83.8°F), marking a negligible difference from August's 28°C (82.4°F). Throughout September, the nighttime temperature in Thrissur averages to a still moderately hot 23.3°C (73.9°F).

Heat index

The average heat index in September is estimated at a fiery hot 35°C (95°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Thrissur, the average relative humidity in September is 85%.

Rainfall

In Thrissur, in September, during 25.7 rainfall days, 188mm (7.4") of precipitation is typically accumulated. In Thrissur, India, during the entire year, the rain falls for 252.6 days and collects up to 2037mm (80.2") of precipitation.

Daylight

In September, the average length of the day in Thrissur is 12h and 11min.
On the first day of the month, sunrise is at 6:15 am and sunset at 6:34 pm. On the last day of September, sunrise is at 6:13 am and sunset at 6:16 pm IST.

Sunshine

In September, the average sunshine in Thrissur is 7.3h.

UV index

May through October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.