Gustavia in Spring
In spring (March, April and May), Gustavia sees average daytime highs around 26°C and overnight lows near 25°C, with 110 mm of rain over about 24 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 62% of the time across spring, and the air most often feels oppressive.
Spring is Gustavia's 2nd-best season to visit on our travel score. Gustavia has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Gustavia's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 110 mm
- 24 wet days
- Avg wind
- 24 km/h
- Travel score
- 7.4
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Gustavia in Spring
Across spring, daytime highs hold fairly steady around 26°C.
A typical spring day in Gustavia reaches about 26°C and drops to 25°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Gustavia
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gustavia weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 24° | 26 | 9.1 | 11 | 7.5 |
| Feb | 25° / 24° | 20 | 6.4 | 11.4 | 7.8 |
| Mar | 25° / 24° | 19 | 5.4 | 11.9 | 8.1 |
| Apr | 26° / 25° | 30 | 7.4 | 12.4 | 7.5 |
| May | 27° / 26° | 61 | 11.5 | 12.8 | 6.5 |
| Jun | 27° / 26° | 46 | 10.3 | 13.1 | 6.4 |
| Jul | 28° / 26° | 70 | 13.8 | 13 | 6.1 |
| Aug | 28° / 27° | 84 | 15 | 12.6 | 5.6 |
| Sep | 28° / 27° | 114 | 16.8 | 12.1 | 5.1 |
| Oct | 28° / 26° | 129 | 16.2 | 11.6 | 5.6 |
| Nov | 27° / 26° | 101 | 14.1 | 11.2 | 6.1 |
| Dec | 26° / 25° | 46 | 10.8 | 10.9 | 7.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 62% of the time across spring.
Chance of precipitation in Spring
Gustavia gets around 110 mm of rain over 24 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 24 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early March to 13 hours by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.5 kWh/m².
Hazard calendar for Gustavia
In spring, Gustavia overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Gustavia sits in the Atlantic hurricane belt; the season peaks August–October.
Gustavia's rainy season runs May–May, when most of the year's rain falls.
Gustavia sees seasonal dust haze (July), heaviest in July.
Is spring a good time to visit Gustavia?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is one of the better times to visit Gustavia for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Gustavia in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Gustavia sees daytime highs around 26°C and nights near 25°C. Pack sun protection. Worth having: light clothes, rain gear and a windbreaker. About 24 days see rain.
Sea temperature near Gustavia in Spring
The nearest coast averages about 27°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 29°C and coldest in February near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Gustavia in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gustavia peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Gustavia in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Gustavia is worst in July — around 23 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 8 | 7 | 9 | 13 | 22 | 23 | 19 | 15 | 16 | 9 | 6 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 8 | Good |
| Mar | 7 | Good |
| Apr | 9 | Good |
| May | 13 | Moderate |
| Jun | 22 | Moderate |
| Jul | 23 | Moderate |
| Aug | 19 | Moderate |
| Sep | 15 | Moderate |
| Oct | 16 | Moderate |
| Nov | 9 | Good |
| Dec | 6 | Good |
Where is Gustavia?
Gustavia sits at 17.9°N, 62.8°W, 6 m above sea level, in Saint Barthelemy. The nearest listed city is Philipsburg, 25 km away.
Topography around Gustavia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gustavia.
Within 3 km, the terrain around Gustavia has only modest variations in elevation — a maximum elevation change of 187 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 273 m; within 80 km, large variations in elevation — a maximum elevation change of 1,092 m.
The land around Gustavia is covered by water (66%) and trees (20%) within 3 km, water (98%) within 16 km, and water (97%) within 80 km.
Saint Barthelemy travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gustavia (17.8962°, -62.8498°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.