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).
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.
. 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).
to visit Trivandrum is from late December to late March, since it is the dry season.
. Here are the average temperatures.
January, the least warm month of the year, is generally a warm to hot month. The average temperature is of
27.3 °C, with a minimum of
23.7 °C and a maximum of
30.9 °C.

On the coldest nights of the month, the temperature usually drops to around
21.5 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
20 mm, 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 of
5.3 kph.

The average sea temperature is of
28.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
February is generally a very hot month. The average temperature is of
28 °C, with a minimum of
24.5 °C and a maximum of
31.4 °C.

On the coldest nights of the month, the temperature usually drops to around
22 °C.

On the warmest days of the month, the temperature usually reaches around
33 °C.

Precipitation amounts to
25 mm, 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 of
6.1 kph.

The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
March is generally a very hot month. The average temperature is of
29 °C, with a minimum of
25.8 °C and a maximum of
32.2 °C.

On the coldest nights of the month, the temperature usually drops to around
23.5 °C.

On the warmest days of the month, the temperature usually reaches around
33.5 °C.

Precipitation amounts to
35 mm, 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 of
7.7 kph.

The average sea temperature is of
29.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
April, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
29.6 °C, with a minimum of
26.4 °C and a maximum of
32.7 °C.

On the coldest nights of the month, the temperature usually drops to around
24 °C.

On the warmest days of the month, the temperature usually reaches around
34 °C.

Precipitation amounts to
125 mm, 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 of
8.8 kph.

The average sea temperature is of
30.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
May is generally a very hot, muggy month. The average temperature is of
29.3 °C, with a minimum of
26.4 °C and a maximum of
32.2 °C.

On the coldest nights of the month, the temperature usually drops to around
24 °C.

On the warmest days of the month, the temperature usually reaches around
33.5 °C.

Precipitation amounts to
190 mm, 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 of
10.2 kph.

The average sea temperature is of
29.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
June is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
25.4 °C and a maximum of
30.6 °C.

On the coldest nights of the month, the temperature usually drops to around
22 °C.

On the warmest days of the month, the temperature usually reaches around
32 °C.

Precipitation amounts to
305 mm, 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 of
10 kph.

The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a warm to hot, muggy month. The average temperature is of
27.5 °C, with a minimum of
25 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
23.5 °C.

On the warmest days of the month, the temperature usually reaches around
32 °C.

Precipitation amounts to
190 mm, 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 of
12.1 kph.

The average sea temperature is of
27.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
August is generally a warm to hot, muggy month. The average temperature is of
27.5 °C, with a minimum of
24.9 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
23.5 °C.

On the warmest days of the month, the temperature usually reaches around
32 °C.

Precipitation amounts to
135 mm, 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 of
12.1 kph.

The average sea temperature is of
27.3 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a warm to hot, muggy month. The average temperature is of
27.5 °C, with a minimum of
25 °C and a maximum of
30.1 °C.

On the coldest nights of the month, the temperature usually drops to around
22.5 °C.

On the warmest days of the month, the temperature usually reaches around
31.5 °C.

Precipitation amounts to
185 mm, 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 of
9.8 kph.

The average sea temperature is of
27.7 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a very hot, muggy month. The average temperature is of
27.8 °C, with a minimum of
25 °C and a maximum of
30.6 °C.

On the coldest nights of the month, the temperature usually drops to around
23.5 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
280 mm, 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 of
7.1 kph.

The average sea temperature is of
28.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
November is generally a very hot, muggy month. The average temperature is of
27.8 °C, with a minimum of
24.8 °C and a maximum of
30.7 °C.

On the coldest nights of the month, the temperature usually drops to around
22 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
215 mm, 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 of
4.8 kph.

The average sea temperature is of
28.7 °C. Therefore, the sea is pleasantly warm and allows long swims.
December is generally a warm to hot, muggy month. The average temperature is of
27.5 °C, with a minimum of
24.2 °C and a maximum of
30.8 °C.

On the coldest nights of the month, the temperature usually drops to around
20.5 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C.

Precipitation amounts to
60 mm, 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 of
4.9 kph.

The average sea temperature is of
28.3 °C. Therefore, the sea is pleasantly warm and allows long swims.