In St. John's, the capital of Antigua and Barbuda, there is a
(in the Köppen classification: tropical savanna climate - Aw), hot and humid all year round, with a relatively cool, dry season from January to mid-April and a hot, humid, and rainy season from mid-June to mid-November.
The city is located in the northwest of the small Caribbean island, on the coast, at 17 degrees north latitude. The V. C. Bird International Airport, from which the weather data is taken, is located a short distance away, on the northeast-facing coast.
Temperatures vary slightly throughout the year, however, from January to mid-March, the night-time minimum can sometimes drop to 18/19 °C (64/66 °F), while from August to October, in the hottest period, the maximum can sometimes reach 33/34 °C (91/93 °F). In August 1995 it reached 34.9 °C (94.8 °F).
. Here are the average temperatures.
January, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of
25.4 °C, with a minimum of
22.6 °C and a maximum of
28.2 °C.

On the coldest nights of the month, the temperature usually drops to around
20 °C.

On the warmest days of the month, the temperature usually reaches around
29.5 °C.

Precipitation amounts to
54.8 mm, distributed over 11 days.
The day lasts on average 11 hours and 10 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
20.7 kph.

The average sea temperature is of
26.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
February, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of
25.4 °C, with a minimum of
22.5 °C and a maximum of
28.3 °C.

On the coldest nights of the month, the temperature usually drops to around
20 °C.

On the warmest days of the month, the temperature usually reaches around
29.5 °C.

Precipitation amounts to
39.2 mm, distributed over 8 days.
The day lasts on average 11 hours and 35 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
21 kph.

The average sea temperature is of
26.1 °C. Therefore, the sea is warm enough for swimming.
March is generally a warm to hot, muggy month. The average temperature is of
25.8 °C, with a minimum of
22.9 °C and a maximum of
28.7 °C.

On the coldest nights of the month, the temperature usually drops to around
20 °C.

On the warmest days of the month, the temperature usually reaches around
30 °C.

Precipitation amounts to
37.7 mm, distributed over 7 days.
The day lasts on average 12 hours and 5 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
20.1 kph.

The average sea temperature is of
26.1 °C. Therefore, the sea is warm enough for swimming.
April is generally a warm to hot, muggy month. The average temperature is of
26.5 °C, with a minimum of
23.6 °C and a maximum of
29.4 °C.

On the coldest nights of the month, the temperature usually drops to around
21 °C.

On the warmest days of the month, the temperature usually reaches around
31 °C.

Precipitation amounts to
66.9 mm, distributed over 8 days.
The day lasts on average 12 hours and 30 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
19.6 kph.

The average sea temperature is of
26.7 °C. Therefore, the sea is pleasantly warm and allows long swims.
May is generally a warm to hot, muggy month. The average temperature is of
27.3 °C, with a minimum of
24.5 °C and a maximum of
30.1 °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
31.5 °C.

Precipitation amounts to
89.6 mm, distributed over 9 days.
The day lasts on average 12 hours and 55 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
19.1 kph.

The average sea temperature is of
27.5 °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
25.3 °C and a maximum of
30.6 °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
63.3 mm, distributed over 9 days.
The day lasts on average 13 hours and 5 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 8.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
21.9 kph.

The average sea temperature is of
28 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a very hot, muggy month. The average temperature is of
28.1 °C, with a minimum of
25.4 °C and a maximum of
30.8 °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
80.9 mm, distributed over 12 days.
The day lasts on average 13 hours and 0 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
23.2 kph.

The average sea temperature is of
28.2 °C. Therefore, the sea is pleasantly warm and allows long swims.
August, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
28.4 °C, with a minimum of
25.6 °C and a maximum of
31.1 °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
32 °C.

Precipitation amounts to
100.2 mm, distributed over 12 days.
The day lasts on average 12 hours and 40 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
20.6 kph.

The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot, muggy month. The average temperature is of
28.2 °C, with a minimum of
25.2 °C and a maximum of
31.1 °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
32.5 °C.

Precipitation amounts to
125.5 mm, distributed over 13 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
16.4 kph.

The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a very hot, muggy month. The average temperature is of
27.6 °C, with a minimum of
24.6 °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
32.5 °C.

Precipitation amounts to
128.3 mm, distributed over 12 days.
The day lasts on average 11 hours and 40 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
15.4 kph.

The average sea temperature is of
28.7 °C. Therefore, the sea is pleasantly warm and allows long swims.
November is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
24.1 °C and a maximum of
29.8 °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
31.5 °C.

Precipitation amounts to
134.6 mm, distributed over 13 days.
The day lasts on average 11 hours and 20 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
17 kph.

The average sea temperature is of
28.2 °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
26.1 °C, with a minimum of
23.4 °C and a maximum of
28.8 °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
30.5 °C.

Precipitation amounts to
80.7 mm, distributed over 12 days.
The day lasts on average 11 hours and 5 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 7.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
19.1 kph.

The average sea temperature is of
27.3 °C. Therefore, the sea is pleasantly warm and allows long swims.