Climate - Batticaloa (Sri Lanka)

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The climate of Batticaloa is tropical, hot all year round, with a rainy season from October to February, while in the rest of the year the rains are quite rare.
The city is located on the east coast of Sri Lanka, at nearly 8 degrees north latitude. Approximately 35 km (22 mi) to the north is the resort town of Pasikudah.
We are in the area that is not affected by the southwest monsoon, which runs from May to September, because it is protected by the mountains found in the interior of Sri Lanka. However, the rains are quite irregular from one year to another, and sometimes, especially in May, there can be heavy rains.
The relatively cooler period is from November to February. By March the temperature rises, and until October, before the rains, it can be very hot. The hottest period is that of the southwest monsoon, which here brings hot, dry air from inland areas.
Sri Lanka is in the path of tropical cyclones. Typically, on the Indian Ocean north of the Equator, cyclones occur from April to December, although Sri Lanka is usually only affected in November and December, and more rarely in May. However, since the sea is warm all year round, in theory they can also form from January to March, perhaps in a light form (such as tropical storms).

Batticaloa - Climate data

The average temperature of the coldest month (January) is of 26.0 °C (78.9 °F), that of the warmest month (June) is of 30.5 °C (87.0 °F). Here are the average temperatures.
Precipitation amounts to 1650 millimeters (65 inches) per year: it is therefore abundant. It ranges from 25 mm (1 in) in the driest month (June) to 420 mm (16.5 in) in the wettest one (December). Here is the average precipitation.
The sea temperature ranges from 27.5 °C (82 °F) in January to 30 °C (86 °F) in April, May. Here are the average sea temperatures.
On average, there are around 2845 sunshine hours per year. Here are the average sunshine hours per day.

Batticaloa - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Batticaloa is usually warm to hot. The average temperature is of 26.0 °C (79 °F), with a minimum of 23.6 °C (74.6 °F) and a maximum of 28.5 °C (83.2 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F).
On the warmest days of the month, the temperature usually reaches around 30 °C (86 °F).
Precipitation amounts to 210 mm (8.3 in), distributed over 11 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 6.5 sunshine hours per day. So, the sun shines 56% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 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 February, the weather in Batticaloa is usually warm to hot. The average temperature is of 26.8 °C (80 °F), with a minimum of 24.3 °C (75.8 °F) and a maximum of 29.2 °C (84.5 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (87.5 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 7 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 68% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 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 March, the weather in Batticaloa is usually very hot. The average temperature is of 27.9 °C (82 °F), with a minimum of 25 °C (77 °F) and a maximum of 30.8 °C (87.4 °F).
On the coldest nights of the month, the temperature usually drops to around 23 °C (73 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (91 °F).
Precipitation amounts to 90 mm (3.5 in), distributed over 6 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 71% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In April, the weather in Batticaloa is usually very hot. The average temperature is of 29.3 °C (85 °F), with a minimum of 26 °C (78.9 °F) and a maximum of 32.5 °C (90.5 °F).
On the coldest nights of the month, the temperature usually drops to around 24 °C (75 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F).
Precipitation amounts to 55 mm (2.2 in), distributed over 5 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 9 sunshine hours per day. So, the sun shines 73% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 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 Batticaloa is usually very hot. The average temperature is of 29.9 °C (86 °F), with a minimum of 26.4 °C (79.5 °F) and a maximum of 33.3 °C (92 °F).
On the coldest nights of the month, the temperature usually drops to around 24 °C (75 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 3 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 65% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 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 warmest month of the year, the weather in Batticaloa is usually very hot. The average temperature is of 30.5 °C (87 °F), with a minimum of 26.5 °C (79.6 °F) and a maximum of 34.6 °C (94.3 °F).
On the coldest nights of the month, the temperature usually drops to around 24.5 °C (76 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F).
Precipitation amounts to 25 mm (1 in), distributed over 2 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 9 sunshine hours per day. So, the sun shines 70% of the time.
The average humidity is 70%.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 29 °C (84.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In July, the weather in Batticaloa is usually very hot. The average temperature is of 30.3 °C (87 °F), with a minimum of 26.2 °C (79.1 °F) and a maximum of 34.5 °C (94 °F).
On the coldest nights of the month, the temperature usually drops to around 24 °C (75 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 3 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 65% of the time.
The average humidity is 69%.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In August, the weather in Batticaloa is usually very hot. The average temperature is of 29.8 °C (86 °F), with a minimum of 25.8 °C (78.5 °F) and a maximum of 33.7 °C (92.7 °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 37.5 °C (99.5 °F).
Precipitation amounts to 50 mm (2 in), distributed over 4 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 68% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 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 September, the weather in Batticaloa is usually very hot. The average temperature is of 29.2 °C (85 °F), with a minimum of 25.5 °C (78 °F) and a maximum of 32.9 °C (91.3 °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 36.5 °C (97.5 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 5 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 67% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In October, the weather in Batticaloa is usually very hot. The average temperature is of 28.3 °C (83 °F), with a minimum of 24.9 °C (76.9 °F) and a maximum of 31.7 °C (89 °F).
On the coldest nights of the month, the temperature usually drops to around 22.5 °C (72 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (94.5 °F).
Precipitation amounts to 180 mm (7.1 in), distributed over 11 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 7.5 sunshine hours per day. So, the sun shines 63% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In November, the weather in Batticaloa is usually warm to hot. The average temperature is of 27.1 °C (81 °F), with a minimum of 24.5 °C (76 °F) and a maximum of 29.8 °C (85.7 °F).
On the coldest nights of the month, the temperature usually drops to around 23 °C (73 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F).
Precipitation amounts to 350 mm (13.8 in), distributed over 16 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 6.5 sunshine hours per day. So, the sun shines 56% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In December, the weather in Batticaloa is usually warm to hot. The average temperature is of 26.4 °C (80 °F), with a minimum of 24.1 °C (75.3 °F) and a maximum of 28.7 °C (83.7 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (87.5 °F).
Precipitation amounts to 420 mm (16.5 in), distributed over 17 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 5.5 sunshine hours per day. So, the sun shines 47% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 28 °C (82 °F). Therefore, the sea is pleasantly warm and allows long swims.