Lamentin, Guadeloupe experiences average highs of 28°C (82°F) and lows of 25°C (77°F) throughout the year. Rainfall is frequent, averaging about 15 rainy days per month. Sunshine is abundant, averaging about 11 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Lamentin, Guadeloupe Weather & Climate 2026
Monthly climate averages for Lamentin, Guadeloupe. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Jun 
Wetter season: Jul–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.9/10
Best: January, February, March, December
UV Index
8
High
Temperature 28°C / 25°C
Feels Like 32°C / 28°C
Rainy Days 15
Rainfall 58 mm
Sunshine 11 h
Humidity 78%
Wind Speed 19 km/h
Dew Point 23°C
Hottest Month
30°C
September
Avg Low26°C
Rain19days
Coldest Month
24°C
February
Avg High27°C
Rain12days
Driest Month
11days
January
Avg High27°C
Avg Low24°C
Windiest Month
22 km/h
February (Gusts 39)
Sea Temperature
27°C – 31°C
Warmest water: September (
30.7°C
)
Worst Time to Visit
Consider avoiding August, September, October due to heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:36
Daylight 13.1h
Sunset 18:41
Live conditions—
Lamentin on the map · live conditions
Lamentin, Guadeloupe
- Continent
- Americas
- Country
- Guadeloupe
- City
- Lamentin
- Population
- 14.9K
- Coordinates
- 16.27°, -61.63°
Seasonal Breakdown
Spring
Mar–May
Avg High 28°C
Avg Low 24°C
Rain 11 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 29°C
Avg Low 26°C
Rain 16 days/mo
Autumn
Sep–Nov
Avg High 29°C
Avg Low 26°C
Rain 19 days/mo
Winter
Dec–Feb
Avg High 27°C
Avg Low 24°C
Rain 13 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 27°C / 24°C . Feb: 27°C / 24°C . Mar: 27°C / 24°C . Apr: 28°C / 24°C . May: 29°C / 25°C . Jun: 29°C / 26°C . Jul: 29°C / 26°C . Aug: 29°C / 26°C . Sep: 30°C / 26°C . Oct: 29°C / 26°C . Nov: 28°C / 25°C . Dec: 27°C / 24°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 31 mm. Feb: 38 mm. Mar: 34 mm. Apr: 41 mm. May: 35 mm. Jun: 35 mm. Jul: 58 mm. Aug: 77 mm. Sep: 116 mm. Oct: 97 mm. Nov: 86 mm. Dec: 44 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 76%. Feb: 76%. Mar: 75%. Apr: 76%. May: 77%. Jun: 77%. Jul: 79%. Aug: 80%. Sep: 80%. Oct: 81%. Nov: 81%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 22 km/h . Mar: 20 km/h . Apr: 19 km/h . May: 19 km/h . Jun: 21 km/h . Jul: 21 km/h . Aug: 19 km/h . Sep: 18 km/h . Oct: 17 km/h . Nov: 18 km/h . Dec: 20 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 11h. Apr: 12h. May: 12h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 11h. Oct: 10h. Nov: 10h. Dec: 10h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 27°C . Feb: 27°C . Mar: 28°C . Apr: 28°C . May: 29°C . Jun: 29°C . Jul: 30°C . Aug: 30°C . Sep: 31°C . Oct: 30°C . Nov: 29°C . Dec: 28°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 8. Apr: UV 8. May: UV 9. Jun: UV 8. Jul: UV 9. Aug: UV 9. Sep: UV 8. Oct: UV 7. Nov: UV 7. Dec: UV 6.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 8 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 30°C | Sep · 30°C |
| Coldest month | Feb 2025 · 24°C | Feb · 24°C |
| Wettest month | Oct 2025 · 134 mm | Sep · 116 mm |
| Windiest month | Feb 2025 · 24 km/h | Feb · 22 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April
Good May
Fair June
Fair July
Wet August
Wet September
Wet October
Wet November
Wet December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 27°C / 24°C | 29°C / 26°C | 11days (31 mm) Wet | 10.5h Excellent | 76% Humid | 6.5 High | Excellent | View Details |
| February best | 27°C / 24°C | 29°C / 25°C | 12days (38 mm) Wet | 10.7h Excellent | 76% Humid | 7.5 Very High | Excellent | View Details |
| March best | 27°C / 24°C | 31°C / 26°C | 12days (34 mm) Wet | 11.2h Excellent | 75% Muggy | 8.4 Very High | Excellent | View Details |
| April | 28°C / 24°C | 32°C / 27°C | 11days (41 mm) Wet | 11.6h Excellent | 76% Humid | 8.1 Very High | Good | View Details |
| May | 29°C / 25°C | 33°C / 28°C | 11days (35 mm) Wet | 11.6h Excellent | 77% Humid | 8.5 Very High | Fair | View Details |
| June | 29°C / 26°C | 33°C / 29°C | 11days (35 mm) Wet | 11.6h Excellent | 77% Humid | 8.4 Very High | Fair | View Details |
| July | 29°C / 26°C | 34°C / 29°C | 18days (58 mm) Wet | 11.7h Excellent | 79% Humid | 8.5 Very High | Wet | View Details |
| August | 29°C / 26°C | 35°C / 30°C | 18days (77 mm) Wet | 11.4h Excellent | 80% Humid | 8.6 Very High | Wet | View Details |
| September | 30°C / 26°C | 35°C / 30°C | 19days (116 mm) Wet | 10.8h Excellent | 80% Humid | 8.3 Very High | Wet | View Details |
| October | 29°C / 26°C | 35°C / 30°C | 20days (97 mm) Wet | 10.3h Excellent | 81% Humid | 7.4 Very High | Wet | View Details |
| November | 28°C / 25°C | 33°C / 28°C | 18days (86 mm) Wet | 10h Excellent | 81% Humid | 6.9 High | Wet | View Details |
| December best | 27°C / 24°C | 30°C / 27°C | 16days (44 mm) Wet | 10.1h Excellent | 79% Humid | 6.3 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Lamentin are January, February, March, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Lamentin, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Lamentin is September, with average daytime highs of 30°C (85°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Lamentin is February, with average overnight lows of 24°C (74°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Lamentin is September, averaging 116mm of precipitation across 19 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Lamentin runs through October, September, July, August, with the heaviest rainfall in October. Based on 10-year averages for Lamentin.
Lamentin receives approximately 132 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Lamentin.
The least favorable months to visit Lamentin are August, September, October, primarily due to heavy rainfall, oppressive humidity. For the best conditions, consider January, February, March, December instead.
The annual average UV index in Lamentin is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Lamentin is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 29°C (84°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Lamentin are 19 km/h (12 mph). The windiest month is February with peak winds reaching 22 km/h (14 mph) (gusts up to 39 km/h / 24 mph).
Lamentin averages 1 clear-sky days per month with overall cloud cover around 50%. The clearest skies occur in March.
The annual average dew point in Lamentin is 23°C (73°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Lamentin has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Lamentin ranges from 28°C (82°F) to 32°C (90°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Lamentin, with a climate score of 6/10. Consider visiting during January, February, March, December instead for better conditions.
For June in Lamentin, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 29°C (85°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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