Best time to cruise · Good time to go
Southern Caribbean cruises in August
Barbados crowns Crop Over with Grand Kadooment on the first Monday of August, and Grenada’s Spicemas carnival follows a week or so later. Aruba, Curaçao and Bonaire are hot, sunny and largely outside the storm belt, so ABC itineraries are the top choice from Florida this month. Volcanic islands farther north are wetter and more exposed.
- Good time to go
- Avg high 85°F
- 13 hrs daylight
Photo: UpstateNYer, CC BY-SA 3.0, via Wikimedia Commons
Southern Caribbean in August: Good time to go
Barbados crowns Crop Over with Grand Kadooment on the first Monday of August, and Grenada’s Spicemas carnival follows a week or so later. Aruba, Curaçao and Bonaire are hot, sunny and largely outside the storm belt, so ABC itineraries are the top choice from Florida this month. Volcanic islands farther north are wetter and more exposed.
Across Southern Caribbean cruise ports, August brings average highs around 85°F (30°C) and lows near 82°F, with about 3.7 inches of rain over the month and roughly 13 hours of daylight.
- Verdict
- Good time to go
- Season
- Year-round; best December to April. The ABC islands stay a good bet even in hurricane season (June 1 to November 30).
- Average high / low
- 85°F / 82°F
- Rainfall (month)
- 3.7 in
- Daylight
- About 13 hours
- Typical cruise length
- 7 nights from San Juan; 8 to 14 nights from Florida
What to pack: light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms.
How August compares with the rest of the year
- Jan: Best time to go
- Feb: Best time to go
- Mar: Best time to go
- Apr: Best time to go
- May: Good time to go
- Jun: Good time to go
- Jul: Good time to go
- Aug: Good time to go
- Sep: Shoulder season
- Oct: Shoulder season
- Nov: Good time to go
- Dec: Best time to go
- No regular sailings
- Shoulder season
- Good time to go
- Best time to go
Southern Caribbean weather in August
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F (°C) | 8228 | 8228 | 8228 | 8328 | 8329 | 8429 | 8429 | 8530 | 8630 | 8530 | 8429 | 8328 |
| Low °F (°C) | 7926 | 7826 | 7826 | 7926 | 8127 | 8127 | 8228 | 8228 | 8328 | 8328 | 8228 | 8027 |
| Rain in (mm) | 1.436 | 1.026 | 1.229 | 1.538 | 2.359 | 3.077 | 3.282 | 3.794 | 3.999 | 4.8121 | 4.8121 | 2.052 |
| Daylight (hrs) | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 |
August weather port by port
| Port | Avg high | Avg low | Rain | Daylight |
|---|---|---|---|---|
| Aruba | 85°F | 82°F | 1.1 in | 13 h |
| Curaçao | 84°F | 83°F | 0.8 in | 13 h |
| Bonaire | 84°F | 83°F | 0.7 in | 13 h |
| Barbados | 84°F | 82°F | 2.8 in | 13 h |
| St. Lucia | 85°F | 83°F | 2.7 in | 13 h |
| Grenada | 84°F | 83°F | 5.7 in | 13 h |
| Dominica | 85°F | 82°F | 5.4 in | 13 h |
| Martinique | 85°F | 83°F | 3.7 in | 13 h |
| San Juan | 88°F | 81°F | 4.9 in | 13 h |
| Antigua | 85°F | 83°F | 4.9 in | 13 h |
| Guadeloupe | 85°F | 82°F | 5.6 in | 13 h |
| Cartagena | 87°F | 82°F | 6.1 in | 13 h |
Average daily highs and lows, 2015–2024, from NASA POWER, adjusted to sea level. Rain is the average monthly total.
Other great cruise destinations in August
Southern Caribbean in August: FAQs
Is August a good time to cruise Southern Caribbean?
Yes, it's a good month. Barbados crowns Crop Over with Grand Kadooment on the first Monday of August, and Grenada’s Spicemas carnival follows a week or so later. Aruba, Curaçao and Bonaire are hot, sunny and largely outside the storm belt, so ABC itineraries are the top choice from Florida this month. Volcanic islands farther north are wetter and more exposed.
What is the weather like on a Southern Caribbean cruise in August?
Across Southern Caribbean cruise ports, August brings average highs around 85°F (30°C) and lows near 82°F, with about 3.7 inches of rain over the month and roughly 13 hours of daylight. Conditions vary from port to port and day to day.
What should I pack for a Southern Caribbean cruise in August?
Pack light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms. Check your cruise line's dress code for evenings.
When is the best time to cruise Southern Caribbean?
Year-round; best December to April. The ABC islands stay a good bet even in hurricane season (June 1 to November 30).. The best months are usually January, February, March, April, December.
Where else can I cruise in August?
August is also a top month for Alaska, Canada & New England, Northern Europe, Norwegian Fjords, Baltic Sea.
Updated November 2026 by the BookMyDreamCruise editorial team. How we research and fact-check.
Sources: NASA POWER climate data.