Gros Islet weather in January
In January, Gros Islet sees average daytime highs of 28°C and overnight lows near 24°C, with 31 mm of rain across 11.8 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 64% of the time in January, and the air most often feels muggy.
Daylight stretches from about 11 h 12 min at the start of January to 11 h 24 min by month's end. Set against the rest of the year, January is Gros Islet's 1st-clearest and 3rd-windiest month. For the whole year in context, see Gros Islet's year-round climate.
- Daytime high
- 28°
- 12th warmest
- Overnight low
- 24°
- 3rd coldest
- Rainfall
- 31 mm
- 11.8 wet days
- Daylight
- 11 h 18 min
- 6:36 AM – 5:51 PM
- Cloud cover
- 38%
- 1st clearest
- Wind
- 22 km/h
- 3rd windiest
- Solar energy
- 5.16 kWh/m²
- Travel score
- 6.5
- out of 10
Gros Islet is town in Saint Lucia.
- Density
- 248/km²
- people per km²
- Founded
- 1749
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 28°C through the month.
A typical January day in Gros Islet reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 24 |
| 2 | 28 | 24 |
| 3 | 28 | 24 |
| 4 | 28 | 24 |
| 5 | 28 | 24 |
| 6 | 28 | 24 |
| 7 | 28 | 24 |
| 8 | 28 | 24 |
| 9 | 28 | 24 |
| 10 | 28 | 24 |
| 11 | 28 | 24 |
| 12 | 28 | 24 |
| 13 | 28 | 24 |
| 14 | 28 | 24 |
| 15 | 28 | 24 |
| 16 | 28 | 24 |
| 17 | 28 | 24 |
| 18 | 28 | 24 |
| 19 | 28 | 24 |
| 20 | 28 | 24 |
| 21 | 28 | 24 |
| 22 | 28 | 24 |
| 23 | 28 | 24 |
| 24 | 28 | 24 |
| 25 | 28 | 24 |
| 26 | 28 | 24 |
| 27 | 28 | 24 |
| 28 | 28 | 24 |
| 29 | 28 | 24 |
| 30 | 28 | 24 |
| 31 | 28 | 24 |
How January really feels in Gros Islet
Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gros Islet weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 24° | 31 | 11.8 | 11.3 | 6.5 |
| Feb | 28° / 24° | 21 | 8.8 | 11.5 | 6.7 |
| Mar | 28° / 24° | 26 | 9.8 | 11.9 | 6.1 |
| Apr | 29° / 25° | 36 | 11.5 | 12.3 | 5.4 |
| May | 29° / 25° | 47 | 12.5 | 12.6 | 4.9 |
| Jun | 29° / 25° | 65 | 15.1 | 12.8 | 4.5 |
| Jul | 29° / 25° | 83 | 20.3 | 12.7 | 4.2 |
| Aug | 30° / 26° | 99 | 20.7 | 12.5 | 4.0 |
| Sep | 30° / 26° | 104 | 19.4 | 12.1 | 3.9 |
| Oct | 29° / 25° | 119 | 20.9 | 11.7 | 4.0 |
| Nov | 29° / 25° | 102 | 18.9 | 11.3 | 4.5 |
| Dec | 28° / 25° | 42 | 13 | 11.2 | 5.7 |
Cloud cover in January
The sky is clear or mostly clear about 64% of the time in January, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 23% of January, with mostly cloudy or overcast conditions the remaining 13%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 84 | 85 | 85 | 86 | 86 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 88 | 87 | 87 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 89 | 88 | 88 | 88 | 88 | 88 |
| Cloudier (%) | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 84 | 16 |
| 2 | 85 | 15 |
| 3 | 85 | 15 |
| 4 | 86 | 14 |
| 5 | 86 | 14 |
| 6 | 87 | 13 |
| 7 | 87 | 13 |
| 8 | 87 | 13 |
| 9 | 87 | 13 |
| 10 | 87 | 13 |
| 11 | 87 | 13 |
| 12 | 87 | 13 |
| 13 | 87 | 13 |
| 14 | 87 | 13 |
| 15 | 87 | 13 |
| 16 | 88 | 12 |
| 17 | 87 | 13 |
| 18 | 87 | 13 |
| 19 | 88 | 12 |
| 20 | 88 | 12 |
| 21 | 88 | 12 |
| 22 | 89 | 11 |
| 23 | 89 | 11 |
| 24 | 89 | 11 |
| 25 | 89 | 11 |
| 26 | 89 | 11 |
| 27 | 88 | 12 |
| 28 | 88 | 12 |
| 29 | 88 | 12 |
| 30 | 88 | 12 |
| 31 | 88 | 12 |
Chance of precipitation in January
Gros Islet gets around 31 mm of rain over 11.8 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 38% and peaks near 43% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 42 | 41 | 41 | 40 | 39 | 39 | 38 | 37 | 36 | 35 | 34 | 34 | 33 | 32 | 32 | 31 | 31 | 30 | 30 | 30 |
| Rain chance (%) | |
|---|---|
| 1 | 42 |
| 2 | 42 |
| 3 | 42 |
| 4 | 43 |
| 5 | 43 |
| 6 | 43 |
| 7 | 43 |
| 8 | 43 |
| 9 | 42 |
| 10 | 42 |
| 11 | 42 |
| 12 | 42 |
| 13 | 41 |
| 14 | 41 |
| 15 | 40 |
| 16 | 39 |
| 17 | 39 |
| 18 | 38 |
| 19 | 37 |
| 20 | 36 |
| 21 | 35 |
| 22 | 34 |
| 23 | 34 |
| 24 | 33 |
| 25 | 32 |
| 26 | 32 |
| 27 | 31 |
| 28 | 31 |
| 29 | 30 |
| 30 | 30 |
| 31 | 30 |
Humidity in January
Most of January feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the muggy band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 11 |
| Muggy (%) | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 69 | 70 | 71 | 72 | 73 | 75 | 75 | 76 | 76 | 78 | 78 | 79 | 79 | 79 |
| Oppressive (%) | 45 | 44 | 43 | 42 | 40 | 39 | 38 | 37 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 29 | 28 | 26 | 25 | 23 | 22 | 20 | 18 | 17 | 15 | 14 | 12 | 11 | 10 | 10 | 10 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 2 | 53 | 45 |
| 2 | 2 | 54 | 44 |
| 3 | 2 | 55 | 43 |
| 4 | 2 | 56 | 42 |
| 5 | 3 | 57 | 40 |
| 6 | 3 | 58 | 39 |
| 7 | 3 | 59 | 38 |
| 8 | 3 | 60 | 37 |
| 9 | 4 | 59 | 37 |
| 10 | 4 | 60 | 36 |
| 11 | 4 | 61 | 35 |
| 12 | 4 | 62 | 34 |
| 13 | 4 | 63 | 33 |
| 14 | 4 | 64 | 32 |
| 15 | 4 | 65 | 31 |
| 16 | 5 | 66 | 29 |
| 17 | 5 | 67 | 28 |
| 18 | 5 | 69 | 26 |
| 19 | 5 | 70 | 25 |
| 20 | 6 | 71 | 23 |
| 21 | 6 | 72 | 22 |
| 22 | 7 | 73 | 20 |
| 23 | 7 | 75 | 18 |
| 24 | 8 | 75 | 17 |
| 25 | 9 | 76 | 15 |
| 26 | 10 | 76 | 14 |
| 27 | 10 | 78 | 12 |
| 28 | 11 | 78 | 11 |
| 29 | 11 | 79 | 10 |
| 30 | 11 | 79 | 10 |
| 31 | 11 | 79 | 10 |
Wind in January
Winds average 22 km/h in January.
Across January, daily wind ranges from about 22 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 22 | breezy |
| 2 | 22 | breezy |
| 3 | 22 | breezy |
| 4 | 22 | breezy |
| 5 | 22 | breezy |
| 6 | 22 | breezy |
| 7 | 22 | breezy |
| 8 | 22 | breezy |
| 9 | 22 | breezy |
| 10 | 22 | breezy |
| 11 | 22 | breezy |
| 12 | 22 | breezy |
| 13 | 22 | breezy |
| 14 | 22 | breezy |
| 15 | 22 | breezy |
| 16 | 22 | breezy |
| 17 | 22 | breezy |
| 18 | 22 | breezy |
| 19 | 22 | breezy |
| 20 | 22 | breezy |
| 21 | 22 | breezy |
| 22 | 22 | breezy |
| 23 | 22 | breezy |
| 24 | 22 | breezy |
| 25 | 22 | breezy |
| 26 | 22 | breezy |
| 27 | 22 | breezy |
| 28 | 22 | breezy |
| 29 | 22 | breezy |
| 30 | 22 | breezy |
| 31 | 22 | breezy |
Sunrise & sunset in January
Daylight runs from about 11 h 12 min at the start of January to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over January. Sunrise moves from 6:31 AM to 6:36 AM, and sunset from 5:42 PM to 5:58 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 |
| Sunrise (AM) | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:33 | 6:33 | 6:34 | 6:34 | 6:34 | 6:35 | 6:35 | 6:35 | 6:35 | 6:35 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 | 6:36 |
| Sunset (PM) | 5:42 | 5:43 | 5:44 | 5:44 | 5:45 | 5:45 | 5:46 | 5:46 | 5:47 | 5:47 | 5:48 | 5:48 | 5:49 | 5:50 | 5:50 | 5:51 | 5:51 | 5:52 | 5:52 | 5:53 | 5:53 | 5:54 | 5:54 | 5:55 | 5:55 | 5:56 | 5:56 | 5:57 | 5:57 | 5:58 | 5:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.2 | 6:31 | 5:42 |
| 2 | 11.2 | 6:32 | 5:43 |
| 3 | 11.2 | 6:32 | 5:44 |
| 4 | 11.2 | 6:33 | 5:44 |
| 5 | 11.2 | 6:33 | 5:45 |
| 6 | 11.2 | 6:33 | 5:45 |
| 7 | 11.2 | 6:33 | 5:46 |
| 8 | 11.2 | 6:34 | 5:46 |
| 9 | 11.2 | 6:34 | 5:47 |
| 10 | 11.2 | 6:34 | 5:47 |
| 11 | 11.2 | 6:35 | 5:48 |
| 12 | 11.2 | 6:35 | 5:48 |
| 13 | 11.2 | 6:35 | 5:49 |
| 14 | 11.2 | 6:35 | 5:50 |
| 15 | 11.2 | 6:35 | 5:50 |
| 16 | 11.3 | 6:36 | 5:51 |
| 17 | 11.3 | 6:36 | 5:51 |
| 18 | 11.3 | 6:36 | 5:52 |
| 19 | 11.3 | 6:36 | 5:52 |
| 20 | 11.3 | 6:36 | 5:53 |
| 21 | 11.3 | 6:36 | 5:53 |
| 22 | 11.3 | 6:36 | 5:54 |
| 23 | 11.3 | 6:36 | 5:54 |
| 24 | 11.3 | 6:36 | 5:55 |
| 25 | 11.3 | 6:36 | 5:55 |
| 26 | 11.3 | 6:36 | 5:56 |
| 27 | 11.3 | 6:36 | 5:56 |
| 28 | 11.3 | 6:36 | 5:57 |
| 29 | 11.4 | 6:36 | 5:57 |
| 30 | 11.4 | 6:36 | 5:58 |
| 31 | 11.4 | 6:36 | 5:58 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.16 kWh/m².
For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 6.65 kWh/m² in April across the year — January's 5.16 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.0 | Bright |
| 2 | 5.0 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.1 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.4 | Bright |
| 26 | 5.4 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.5 | Bright |
Hazard calendar for Gros Islet
None of Gros Islet's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Gros Islet sits in the Atlantic hurricane belt; the season peaks August–October.
Gros Islet's rainy season runs June–November, when most of the year's rain falls.
Gros Islet sees seasonal dust haze (June–July), heaviest in June.
Is January a good time to visit Gros Islet?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Gros Islet for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Gros Islet in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Gros Islet sees daytime highs around 28°C and nights near 24°C. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 12 days see rain.
Sea temperature near Gros Islet in January
The nearest coast averages about 27°C in January — 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 27°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 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Gros Islet in January
Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gros Islet peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very 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) | 9 | 12 | 14 | 13 | 12 | 11 | 12 | 11 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Gros Islet in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Gros Islet is worst in June — around 29 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 10 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) | 10 | 14 | 12 | 16 | 19 | 29 | 25 | 21 | 15 | 18 | 13 | 10 |
| Level | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 14 | Moderate |
| Mar | 12 | Good |
| Apr | 16 | Moderate |
| May | 19 | Moderate |
| Jun | 29 | Moderate |
| Jul | 25 | Moderate |
| Aug | 21 | Moderate |
| Sep | 15 | Moderate |
| Oct | 18 | Moderate |
| Nov | 13 | Moderate |
| Dec | 10 | Good |
Where is Gros Islet?
Gros Islet sits at 14.1°N, 61.0°W, 58 m above sea level, in Saint Lucia. The nearest listed city is Castries, 10 km away.
Topography around Gros Islet
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gros Islet.
Within 3 km, the terrain around Gros Islet has only modest variations in elevation — a maximum elevation change of 235 m around an average of 44 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 657 m; within 80 km, large variations in elevation — a maximum elevation change of 1,149 m.
The land around Gros Islet is covered by trees (59%) and water (20%) within 3 km, water (73%) and trees (24%) within 16 km, and water (88%) within 80 km.
Saint Lucia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / G
- 240 V · 50 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $14,746
- 2025
- Homicide rate
- 39
- per 100k, 2023
- Road deaths
- 29.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- Religion
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 Gros Islet (14.0667°, -60.95°, elevation 58 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).