Grand-Bourg Temperature by Month
Grand-Bourg in Marie Galante, Guadeloupe enjoys a stable climate, with daytime temperatures staying close to 28°C (82°F) throughout the year. Explore the full monthly breakdown below.
Grand-Bourg Monthly Temperatures
The climate in Grand-Bourg remains fairly constant, offering comfortable temperatures throughout the year. Maximum daytime temperatures reach a comfortable 29°C (84°F) in September, dropping to a comfortable 27°C (81°F) in February. Nighttime lows stay between 26°C (79°F) and 24°C (75°F).
The chart below illustrates the average maximum day and minimum night temperatures in Grand-Bourg by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. September, the warmest month, gets 212 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Grand-Bourg Temperatures: 1976-2026
Browse day-by-day temperature records for Grand-Bourg spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Grand-Bourg vs Guadeloupe
The map below shows the annual temperature across Guadeloupe. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Grand-Bourg vs World: Temperature Compared
Grand-Bourg's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Grand-Bourg?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Grand-Bourg, February is the coolest month, with average highs of 27°C (81°F) and humidity around 67% — considered high. In September, the warmest month, temperatures average 29°C (84°F) with 72% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Grand-Bourg's weather — including monthly rainfall, sunshine hours, and humidity — visit our Grand-Bourg climate page.
