Do you need to know, when is the best time to go to Antigua and Barbuda? Then you should take a look here, what weather you can expect there during the year.
The climate of Antigua and Barbuda is tropical maritime, there are only little seasonal variations of temperatures. The tropical climate is moderated by fairly constant northeast winds. You can expect only little precipitation, because the island has only low elevations. Generally the wettest period is between September and November.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Antigua, Barbuda, Codrington, English Harbour, Falmouth, Saint John's.
Let's look now what weather you can expect in the area around the capital and in many other cities. The warmest month here is August, the average maximum temperature is 31.7 ℃ (89.06 ℉). The average minimum temperature in this month is 25.7 ℃ (78.26 ℉). The coldest month here is January, the average maximum temperature is 28.1 ℃ (82.58 ℉). The average minimum temperature in this month is 23 ℃ (73.4 ℉). The most rainy month here is November, the average number of rainy days is 13.2. The least rainy month here is February, the average number of rainy days is 8.1. 
Typical (usual) weather in Antigua and Barbuda in January is this: The average highest temperature in Antigua and Barbuda in January is 28.1 ℃ (82.58 ℉). The average lowest temperature is 23 ℃ (73.4 ℉). At the beginning of January you can expect higher temperatures, the average highest temperature is around 28.2 ℃ (82.76 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 28.3 ℃ (82.94 ℉). The average number of rainy days in January is 10.2. The average rainfall is 56.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:07 (hours and minutes), in the middle of the month 11:12 and at the end of the month 11:22.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in February is this: The average highest temperature in Antigua and Barbuda in February is 28.5 ℃ (83.3 ℉). The average lowest temperature is 22.6 ℃ (72.68 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 28.3 ℃ (82.94 ℉). At the end of February you can expect lower temperatures, the average highest temperature is around 28.5 ℃ (83.3 ℉). The average number of rainy days in February is 8.1. The average rainfall is 36.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:22 (hours and minutes), in the middle of the month 11:34 and at the end of the month 11:48.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in March is this: The average highest temperature in Antigua and Barbuda in March is 28.5 ℃ (83.3 ℉). The average lowest temperature is 23.2 ℃ (73.76 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 28.5 ℃ (83.3 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 29.1 ℃ (84.38 ℉). The average number of rainy days in March is 8.1. The average rainfall is 47.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:48 (hours and minutes), in the middle of the month 12:02 and at the end of the month 12:17.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in April is this: The average highest temperature in Antigua and Barbuda in April is 29.7 ℃ (85.46 ℉). The average lowest temperature is 23.5 ℃ (74.3 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 29.1 ℃ (84.38 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 29.95 ℃ (85.91 ℉). The average number of rainy days in April is 9.1. The average rainfall is 68.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:17 (hours and minutes), in the middle of the month 12:31 and at the end of the month 12:44.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in May is this: The average highest temperature in Antigua and Barbuda in May is 30.2 ℃ (86.36 ℉). The average lowest temperature is 25 ℃ (77 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 29.95 ℃ (85.91 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 30.75 ℃ (87.35 ℉). The average number of rainy days in May is 9.8. The average rainfall is 111.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:44 (hours and minutes), in the middle of the month 12:55 and at the end of the month 13:04.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in June is this: The average highest temperature in Antigua and Barbuda in June is 31.3 ℃ (88.34 ℉). The average lowest temperature is 25.4 ℃ (77.72 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 30.75 ℃ (87.35 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 30.8 ℃ (87.44 ℉). The average number of rainy days in June is 8.1. The average rainfall is 50.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:04 (hours and minutes), in the middle of the month 13:08 and at the end of the month 13:08.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in July is this: The average highest temperature in Antigua and Barbuda in July is 30.3 ℃ (86.54 ℉). The average lowest temperature is 25.4 ℃ (77.72 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 30.8 ℃ (87.44 ℉). At the end of July you can expect higher temperatures, the average highest temperature is around 31 ℃ (87.8 ℉). The average number of rainy days in July is 11.3. The average rainfall is 87.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:08 (hours and minutes), in the middle of the month 13:03 and at the end of the month 12:55.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in August is this: The average highest temperature in Antigua and Barbuda in August is 31.7 ℃ (89.06 ℉). The average lowest temperature is 25.7 ℃ (78.26 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 31 ℃ (87.8 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 31.1 ℃ (87.98 ℉). The average number of rainy days in August is 13.1. The average rainfall is 101.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:55 (hours and minutes), in the middle of the month 12:44 and at the end of the month 12:31.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in September is this: The average highest temperature in Antigua and Barbuda in September is 30.5 ℃ (86.9 ℉). The average lowest temperature is 25.4 ℃ (77.72 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 31.1 ℃ (87.98 ℉). At the end of September you can expect higher temperatures, the average highest temperature is around 30.85 ℃ (87.53 ℉). The average number of rainy days in September is 10.8. The average rainfall is 139.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:31 (hours and minutes), in the middle of the month 12:17 and at the end of the month 12:02.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in October is this: The average highest temperature in Antigua and Barbuda in October is 31.2 ℃ (88.16 ℉). The average lowest temperature is 24 ℃ (75.2 ℉). At the beginning of October you can expect lower temperatures, the average highest temperature is around 30.85 ℃ (87.53 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 30.2 ℃ (86.36 ℉). The average number of rainy days in October is 13.1. The average rainfall is 129.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:02 (hours and minutes), in the middle of the month 11:48 and at the end of the month 11:34.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in November is this: The average highest temperature in Antigua and Barbuda in November is 29.2 ℃ (84.56 ℉). The average lowest temperature is 24.4 ℃ (75.92 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 30.2 ℃ (86.36 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 28.75 ℃ (83.75 ℉). The average number of rainy days in November is 13.2. The average rainfall is 131.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:34 (hours and minutes), in the middle of the month 11:22 and at the end of the month 11:13.These numbers above are valid primarily for the capital and the area around it.Typical (usual) weather in Antigua and Barbuda in December is this: The average highest temperature in Antigua and Barbuda in December is 28.3 ℃ (82.94 ℉). The average lowest temperature is 23 ℃ (73.4 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 28.75 ℃ (83.75 ℉). At the end of December you can expect lower temperatures, the average highest temperature is around 28.2 ℃ (82.76 ℉). The average number of rainy days in December is 13. The average rainfall is 86.8 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:13 (hours and minutes), in the middle of the month 11:07 and at the end of the month 11:06.These numbers above are valid primarily for the capital and the area around it.