Basse-Terre climate
Basse-Terre (Guadeloupe) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 27 °C81 °F, and about 1,171 mm46 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Basse-Terre climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2780 | 2578 | 2679 | 451.8 |
| Feb | 2780 | 2577 | 2679 | 311.2 |
| Mar | 2781 | 2577 | 2679 | 341.3 |
| Apr | 2882 | 2679 | 2780 | 572.3 |
| May | 2883 | 2780 | 2781 | 923.6 |
| Jun | 2984 | 2781 | 2882 | 1064.2 |
| Jul | 2984 | 2781 | 2883 | 1265.0 |
| Aug | 2984 | 2882 | 2883 | 1405.5 |
| Sep | 2985 | 2882 | 2983 | 1485.8 |
| Oct | 2984 | 2882 | 2883 | 1726.8 |
| Nov | 2883 | 2781 | 2882 | 1465.8 |
| Dec | 2781 | 2679 | 2780 | 732.9 |
| Year | 2985 | 2577 | 2781 | 1,17146 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 75% | 40% | 5.0 | 11:16 |
| Feb | 74% | 39% | 5.6 | 11:36 |
| Mar | 74% | 44% | 6.3 | 12:00 |
| Apr | 75% | 53% | 6.3 | 12:29 |
| May | 77% | 59% | 6.2 | 12:52 |
| Jun | 78% | 62% | 6.0 | 13:04 |
| Jul | 78% | 54% | 6.1 | 12:59 |
| Aug | 78% | 50% | 6.2 | 12:39 |
| Sep | 78% | 55% | 5.9 | 12:12 |
| Oct | 79% | 56% | 5.3 | 11:45 |
| Nov | 78% | 48% | 4.8 | 11:22 |
| Dec | 76% | 43% | 4.7 | 11:11 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Basse-Terre is like
The warmest month is September, with an average high of 29 °C85 °F and a low of 28 °C82 °F. The coldest is February, when highs average 27 °C80 °F and lows 25 °C77 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.7 °C4.8 °F.
It is wet, with about 1,171 mm46 in of precipitation per year. The wettest three-month stretch is September–November, which brings 40% of the annual total. The wettest month is October (172 mm6.8 in), the driest is February (31 mm1.2 in).
Relative humidity ranges from 74% in March to 79% in October. The clearest skies (lowest average cloud amount, 39%) are typical of February. Average wind speed near the ground ranges from 16 km/h (10 mph) in September to 23 km/h (14 mph) in July. Daylight lasts from about 11.2 hours in December to 13.1 hours in June.
Best time to visit Basse-Terre
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–April: average highs of 27 °C80 °F to 28 °C82 °F with 31 mm1.2 in to 73 mm2.9 in of precipitation per month.
The most challenging month is October, which is very wet (172 mm6.8 in) and humid (79% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Basse-Terre
- Wetter months (June–November) — highs 2883 to 29 °C85 °F, lows 2781 to 28 °C82 °F, about 140 mm5.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (December–May) — highs 2780 to 28 °C83 °F, lows 2577 to 27 °C80 °F, about 55 mm2.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Basse-Terre compares
Compared with Roseau, about 86 km to the southeast, Basse-Terre has practically the same average temperature and receives 17% less precipitation (1,171 mm46 in vs 1,419 mm56 in).
Places in other countries with the most similar temperature and rainfall pattern: Saint Johns (Antigua and Barbuda, Aw), Plymouth (Montserrat, Aw) and Charlotte Amalie (U.S. Virgin Islands, Aw).
Nearby places
- Roseau 86 km · 27 °C81 °F · 1,419 mm56 in
- Plymouth 94 km · 27 °C80 °F · 1,003 mm39 in
- Saint Johns 126 km · 27 °C81 °F · 1,108 mm44 in
- Fort-de-France 170 km · 27 °C81 °F · 1,478 mm58 in
- Basseterre 179 km · 27 °C81 °F · 792 mm31 in
- Castries 236 km · 27 °C80 °F · 1,444 mm57 in
- Gustavia 242 km · 27 °C81 °F · 614 mm24 in
- Marigot 271 km · 27 °C81 °F · 614 mm24 in
Frequently asked questions
What is the warmest month in Basse-Terre?
September is the warmest month in Basse-Terre, with an average high of 29 °C (85 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Basse-Terre?
February is the coldest month, with an average high of 27 °C (80 °F) and an average low of 25 °C (77 °F).
When does it rain the most in Basse-Terre?
October is the wettest month with about 172 mm (6.8 in) of precipitation; February is the driest with about 31 mm (1.2 in).
What is the best time to visit Basse-Terre?
Judging by long-term averages, the most comfortable months are December–April.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.