Climate - Trivandrum (India)

The climate of Trivandrum (or Thiruvananthapuram) is tropical, with a rainy season from April to early December and a dry season from mid-December to March. There are two very rainy periods, in June (when the southwest monsoon begins) and in October (when the north-east monsoon or retreating monsoon begins).
The city is the capital of the state of Kerala and is located in the southwest of India, in the southern part of the Malabar coast, at 8 degrees north latitude.
In April and May, before the monsoon proper, there are some rain showers which gradually become more frequent.
The temperature is high all year round and is quite stable, however, it is a bit higher from March to May, before the monsoon, when it can reach 35/36 °C (95/97 °F) at the airport, which is closer to the sea, and at 37/38 °C (99/100 °F) in the city.
Trivandrum is in the path of tropical cyclones. Typically, cyclones occur from April to December, although the extreme south of India is normally affected only in November and December. In any case, since the sea is warm all year round, in theory they can also form from January to March, perhaps in light form (as tropical storms).

Trivandrum - Climate data

In Trivandrum, the average temperature of the coldest month (January) is of 27.3 °C (81.1 °F), that of the warmest month (April) is of 29.6 °C (85.2 °F). Here are the average temperatures.
In Trivandrum, precipitation amounts to 1760 millimeters (69.3 inches) per year: it is therefore abundant. It ranges from 20 mm (0.8 in) in the driest month (January) to 305 mm (12 in) in the wettest one (June). Here is the average precipitation.
At Trivandrum, the sea temperature ranges from 27.5 °C (82 °F) in July, August, September to 30 °C (86 °F) in April, May. Here are the average sea temperatures.
In Trivandrum, there are on average around 2325 sunshine hours per year. Here are the average hours of sunshine per day.

Trivandrum - Weather by month

Based on the period 1996-2020

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In January, the coldest month of the year, the weather in Trivandrum is usually warm to hot. The average temperature is of 27.3 °C (81 °F), with a minimum of 23.7 °C (74.7 °F) and a maximum of 30.9 °C (87.6 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F).
Precipitation amounts to 20 mm (0.8 in), distributed over 2 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 69%.
The average wind speed is 5 kph (3 mph).
The average sea temperature is of 28 °C (82.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In February, the weather in Trivandrum is usually very hot. The average temperature is of 28.0 °C (82 °F), with a minimum of 24.5 °C (76.1 °F) and a maximum of 31.4 °C (88.5 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (72 °F).
On the warmest days of the month, the temperature usually reaches around 33 °C (91.5 °F).
Precipitation amounts to 25 mm (1 in), distributed over 2 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 68%.
The average wind speed is 6 kph (4 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In March, the weather in Trivandrum is usually very hot. The average temperature is of 29.0 °C (84 °F), with a minimum of 25.8 °C (78.5 °F) and a maximum of 32.2 °C (90 °F).
On the coldest nights, the temperature usually drops to around 23.5 °C (74.5 °F).
On the warmest days, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 35 mm (1.4 in), distributed over 4 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 69%.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29.5 °C (85 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In April, the warmest month of the year, the weather in Trivandrum is usually very hot and muggy. The average temperature is of 29.6 °C (85 °F), with a minimum of 26.4 °C (79.5 °F) and a maximum of 32.7 °C (90.8 °F).
On the coldest nights, the temperature usually drops to around 24 °C (75 °F).
On the warmest days, the temperature usually reaches around 34 °C (93 °F).
Precipitation amounts to 125 mm (4.9 in), distributed over 8 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 9 kph (5 mph).
The average sea temperature is of 30 °C (86 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In May, the weather in Trivandrum is usually very hot and muggy. The average temperature is of 29.3 °C (85 °F), with a minimum of 26.4 °C (79.6 °F) and a maximum of 32.2 °C (89.9 °F).
On the coldest nights, the temperature usually drops to around 24 °C (75 °F).
On the warmest days, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 190 mm (7.5 in), distributed over 13 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 30 °C (85.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In June, the weather in Trivandrum is usually very hot and muggy. The average temperature is of 28.0 °C (82 °F), with a minimum of 25.4 °C (77.7 °F) and a maximum of 30.6 °C (87.1 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71 °F).
On the warmest days, the temperature usually reaches around 32 °C (90 °F).
Precipitation amounts to 305 mm (12 in), distributed over 17 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In July, the weather in Trivandrum is usually warm to hot and muggy. The average temperature is of 27.5 °C (82 °F), with a minimum of 25 °C (77 °F) and a maximum of 30 °C (86 °F).
On the coldest nights of the month, the temperature usually drops to around 23.5 °C (74 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 190 mm (7.5 in), distributed over 14 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 35% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 27.5 °C (81.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In August, the weather in Trivandrum is usually warm to hot and muggy. The average temperature is of 27.5 °C (81 °F), with a minimum of 24.9 °C (76.9 °F) and a maximum of 30 °C (86 °F).
On the coldest nights of the month, the temperature usually drops to around 23.5 °C (74 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 135 mm (5.3 in), distributed over 12 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 27.5 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In September, the weather in Trivandrum is usually warm to hot and muggy. The average temperature is of 27.5 °C (82 °F), with a minimum of 25 °C (77 °F) and a maximum of 30.1 °C (86.1 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (72.5 °F).
On the warmest days, the temperature usually reaches around 31.5 °C (89 °F).
Precipitation amounts to 185 mm (7.3 in), distributed over 12 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 27.5 °C (82 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In October, the weather in Trivandrum is usually very hot and muggy. The average temperature is of 27.8 °C (82 °F), with a minimum of 25 °C (77.1 °F) and a maximum of 30.6 °C (87.2 °F).
On the coldest nights, the temperature usually drops to around 23.5 °C (74.5 °F).
On the warmest days, the temperature usually reaches around 32.5 °C (90.5 °F).
Precipitation amounts to 280 mm (11 in), distributed over 16 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 28.5 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In November, the weather in Trivandrum is usually very hot and muggy. The average temperature is of 27.8 °C (82 °F), with a minimum of 24.8 °C (76.6 °F) and a maximum of 30.7 °C (87.3 °F).
On the coldest nights, the temperature usually drops to around 22 °C (72 °F).
On the warmest days, the temperature usually reaches around 32.5 °C (90 °F).
Precipitation amounts to 215 mm (8.5 in), distributed over 13 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In December, the weather in Trivandrum is usually warm to hot and muggy. The average temperature is of 27.5 °C (82 °F), with a minimum of 24.2 °C (75.6 °F) and a maximum of 30.8 °C (87.5 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69.5 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F).
Precipitation amounts to 60 mm (2.4 in), distributed over 6 days.
The day lasts on average 11 hours and 35 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
The average sea temperature is of 28.5 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.