Best time to cruise · Best time to go
Southern Caribbean cruises in March
March is the sunniest stretch on St. Lucia and Barbados, with low humidity and clear views of the Pitons. The ABC islands are at their driest, and their cactus-and-limestone landscapes look almost desert-like. Small-ship sailings through the Grenadines enjoy settled seas, and spring break affects these longer routes far less than short Florida trips.
- Best time to go
- Avg high 82°F
- 12 hrs daylight
Photo: UpstateNYer, CC BY-SA 3.0, via Wikimedia Commons
Southern Caribbean in March: Best time to go
March is the sunniest stretch on St. Lucia and Barbados, with low humidity and clear views of the Pitons. The ABC islands are at their driest, and their cactus-and-limestone landscapes look almost desert-like. Small-ship sailings through the Grenadines enjoy settled seas, and spring break affects these longer routes far less than short Florida trips.
Across Southern Caribbean cruise ports, March brings average highs around 82°F (28°C) and lows near 78°F, with about 1.2 inches of rain over the month and roughly 12 hours of daylight.
- Verdict
- Best 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
- 82°F / 78°F
- Rainfall (month)
- 1.2 in
- Daylight
- About 12 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 March 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 March
| 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 |
March weather port by port
| Port | Avg high | Avg low | Rain | Daylight |
|---|---|---|---|---|
| Aruba | 82°F | 79°F | 0.9 in | 12 h |
| Curaçao | 81°F | 79°F | 0.5 in | 12 h |
| Bonaire | 81°F | 79°F | 0.4 in | 12 h |
| Barbados | 81°F | 79°F | 0.7 in | 12 h |
| St. Lucia | 82°F | 79°F | 0.8 in | 12 h |
| Grenada | 81°F | 79°F | 2.0 in | 12 h |
| Dominica | 81°F | 78°F | 1.7 in | 12 h |
| Martinique | 81°F | 78°F | 1.3 in | 12 h |
| San Juan | 84°F | 75°F | 2.2 in | 12 h |
| Antigua | 80°F | 78°F | 1.1 in | 12 h |
| Guadeloupe | 80°F | 78°F | 1.7 in | 12 h |
| Cartagena | 87°F | 80°F | 0.7 in | 12 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 March
Southern Caribbean in March: FAQs
Is March a good time to cruise Southern Caribbean?
Yes, it's one of the best months. March is the sunniest stretch on St. Lucia and Barbados, with low humidity and clear views of the Pitons. The ABC islands are at their driest, and their cactus-and-limestone landscapes look almost desert-like. Small-ship sailings through the Grenadines enjoy settled seas, and spring break affects these longer routes far less than short Florida trips.
What is the weather like on a Southern Caribbean cruise in March?
Across Southern Caribbean cruise ports, March brings average highs around 82°F (28°C) and lows near 78°F, with about 1.2 inches of rain over the month and roughly 12 hours of daylight. Conditions vary from port to port and day to day.
What should I pack for a Southern Caribbean cruise in March?
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 March?
March is also a top month for Caribbean, Eastern Caribbean, Western Caribbean, Bahamas, Hawaii.
Updated November 2026 by the BookMyDreamCruise editorial team. How we research and fact-check.
Sources: NASA POWER climate data.