West Bay weather in January
In January, West Bay sees average daytime highs of 26°C and overnight lows near 25°C, with 28 mm of rain across 6.6 wet days and about 11 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.
Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 65% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 10 h 48 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is West Bay's 4th-clearest and 3rd-windiest month. For the whole year in context, see West Bay's year-round climate.
- Daytime high
- 26°
- 11th warmest
- Overnight low
- 25°
- 1st coldest
- Rainfall
- 28 mm
- 6.6 wet days
- Daylight
- 10 h 54 min
- 7:06 AM – 6:03 PM
- Cloud cover
- 37%
- 4th clearest
- Wind
- 26 km/h
- 3rd windiest
- Solar energy
- 4.43 kWh/m²
- Travel score
- 7.7
- out of 10
West Bay is populated place in the Cayman Islands.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 26°C through the month.
A typical January day in West Bay reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°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) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 25 |
| 2 | 26 | 25 |
| 3 | 26 | 25 |
| 4 | 26 | 25 |
| 5 | 26 | 25 |
| 6 | 26 | 25 |
| 7 | 26 | 25 |
| 8 | 26 | 25 |
| 9 | 26 | 25 |
| 10 | 26 | 25 |
| 11 | 26 | 25 |
| 12 | 26 | 25 |
| 13 | 26 | 25 |
| 14 | 26 | 25 |
| 15 | 26 | 25 |
| 16 | 26 | 25 |
| 17 | 26 | 25 |
| 18 | 26 | 25 |
| 19 | 26 | 24 |
| 20 | 26 | 24 |
| 21 | 26 | 24 |
| 22 | 26 | 24 |
| 23 | 26 | 24 |
| 24 | 26 | 24 |
| 25 | 26 | 25 |
| 26 | 26 | 25 |
| 27 | 26 | 25 |
| 28 | 26 | 25 |
| 29 | 26 | 25 |
| 30 | 26 | 25 |
| 31 | 26 | 25 |
How January really feels in West Bay
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.
West Bay weather by month
How January compares with the rest of the year at a glance. January is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 25° | 28 | 6.6 | 11 | 7.7 |
| Feb | 26° / 25° | 13 | 2.8 | 11.3 | 8.4 |
| Mar | 26° / 25° | 16 | 3.9 | 11.9 | 8.3 |
| Apr | 27° / 26° | 18 | 3.7 | 12.4 | 8.0 |
| May | 28° / 26° | 95 | 11.2 | 12.9 | 6.5 |
| Jun | 28° / 27° | 104 | 13.2 | 13.1 | 5.4 |
| Jul | 29° / 27° | 60 | 12.3 | 13.1 | 5.4 |
| Aug | 29° / 27° | 93 | 15.3 | 12.7 | 5.0 |
| Sep | 29° / 27° | 139 | 18.6 | 12.1 | 4.5 |
| Oct | 28° / 27° | 214 | 20 | 11.6 | 4.7 |
| Nov | 27° / 26° | 108 | 12.1 | 11.1 | 6.4 |
| Dec | 26° / 25° | 44 | 8.5 | 10.9 | 7.2 |
Cloud cover in January
The sky is clear or mostly clear about 65% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to open up as the month goes on.
| 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 (%) | 75 | 75 | 76 | 77 | 77 | 77 | 77 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 79 | 80 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 84 | 84 | 84 | 85 |
| Cloudier (%) | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 16 | 16 | 16 | 15 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 75 | 25 |
| 2 | 75 | 25 |
| 3 | 76 | 24 |
| 4 | 77 | 23 |
| 5 | 77 | 23 |
| 6 | 77 | 23 |
| 7 | 77 | 23 |
| 8 | 77 | 23 |
| 9 | 78 | 22 |
| 10 | 78 | 22 |
| 11 | 78 | 22 |
| 12 | 78 | 22 |
| 13 | 78 | 22 |
| 14 | 78 | 22 |
| 15 | 79 | 21 |
| 16 | 79 | 21 |
| 17 | 79 | 21 |
| 18 | 79 | 21 |
| 19 | 79 | 21 |
| 20 | 80 | 20 |
| 21 | 81 | 19 |
| 22 | 81 | 19 |
| 23 | 81 | 19 |
| 24 | 81 | 19 |
| 25 | 82 | 18 |
| 26 | 82 | 18 |
| 27 | 82 | 18 |
| 28 | 84 | 16 |
| 29 | 84 | 16 |
| 30 | 84 | 16 |
| 31 | 85 | 15 |
Chance of precipitation in January
West Bay gets around 28 mm of rain over 6.6 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 21% and peaks near 23% on the wettest days.
| 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 (%) | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 |
| Rain chance (%) | |
|---|---|
| 1 | 23 |
| 2 | 23 |
| 3 | 22 |
| 4 | 22 |
| 5 | 22 |
| 6 | 22 |
| 7 | 22 |
| 8 | 22 |
| 9 | 22 |
| 10 | 22 |
| 11 | 22 |
| 12 | 22 |
| 13 | 22 |
| 14 | 22 |
| 15 | 21 |
| 16 | 21 |
| 17 | 21 |
| 18 | 21 |
| 19 | 21 |
| 20 | 21 |
| 21 | 21 |
| 22 | 20 |
| 23 | 20 |
| 24 | 20 |
| 25 | 19 |
| 26 | 19 |
| 27 | 18 |
| 28 | 18 |
| 29 | 18 |
| 30 | 17 |
| 31 | 17 |
Humidity in January
Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the oppressive band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 84% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
| Humid (%) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
| Muggy (%) | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 31 |
| Oppressive (%) | 62 | 61 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 57 | 57 | 57 | 58 | 56 | 56 | 56 | 54 | 54 | 53 | 53 | 53 | 54 | 53 | 53 | 52 | 53 | 53 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 3 | 9 | 26 | 62 |
| 2 | 4 | 9 | 26 | 61 |
| 3 | 4 | 9 | 27 | 60 |
| 4 | 4 | 9 | 27 | 60 |
| 5 | 4 | 9 | 27 | 60 |
| 6 | 4 | 9 | 27 | 60 |
| 7 | 4 | 9 | 27 | 60 |
| 8 | 4 | 9 | 28 | 59 |
| 9 | 4 | 9 | 28 | 59 |
| 10 | 4 | 10 | 28 | 58 |
| 11 | 4 | 10 | 28 | 58 |
| 12 | 5 | 10 | 28 | 57 |
| 13 | 5 | 10 | 28 | 57 |
| 14 | 5 | 11 | 27 | 57 |
| 15 | 5 | 11 | 27 | 57 |
| 16 | 5 | 11 | 27 | 57 |
| 17 | 5 | 11 | 26 | 58 |
| 18 | 6 | 12 | 26 | 56 |
| 19 | 6 | 12 | 26 | 56 |
| 20 | 6 | 12 | 26 | 56 |
| 21 | 6 | 13 | 27 | 54 |
| 22 | 6 | 13 | 27 | 54 |
| 23 | 6 | 13 | 28 | 53 |
| 24 | 6 | 13 | 28 | 53 |
| 25 | 5 | 13 | 29 | 53 |
| 26 | 5 | 12 | 29 | 54 |
| 27 | 5 | 12 | 30 | 53 |
| 28 | 5 | 12 | 30 | 53 |
| 29 | 5 | 12 | 31 | 52 |
| 30 | 4 | 12 | 31 | 53 |
| 31 | 4 | 12 | 31 | 53 |
Wind in January
Winds average 26 km/h in January.
Across January, daily wind ranges from about 25 km/h on the calmest days to 27 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) | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 |
| 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 | 27 | breezy |
| 2 | 27 | breezy |
| 3 | 26 | breezy |
| 4 | 26 | breezy |
| 5 | 26 | breezy |
| 6 | 26 | breezy |
| 7 | 26 | breezy |
| 8 | 26 | breezy |
| 9 | 26 | breezy |
| 10 | 26 | breezy |
| 11 | 26 | breezy |
| 12 | 26 | breezy |
| 13 | 26 | breezy |
| 14 | 26 | breezy |
| 15 | 26 | breezy |
| 16 | 26 | breezy |
| 17 | 26 | breezy |
| 18 | 26 | breezy |
| 19 | 26 | breezy |
| 20 | 26 | breezy |
| 21 | 26 | breezy |
| 22 | 26 | breezy |
| 23 | 26 | breezy |
| 24 | 26 | breezy |
| 25 | 26 | breezy |
| 26 | 26 | breezy |
| 27 | 26 | breezy |
| 28 | 26 | breezy |
| 29 | 25 | breezy |
| 30 | 25 | breezy |
| 31 | 25 | breezy |
Sunrise & sunset in January
Daylight runs from about 10 h 48 min at the start of January to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over January. Sunrise moves from 7:03 AM to 7:05 AM, and sunset from 5:54 PM to 6:12 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) | 10.8 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 |
| Sunrise (AM) | 7:03 | 7:04 | 7:04 | 7:04 | 7:04 | 7:05 | 7:05 | 7:05 | 7:05 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:07 | 7:07 | 7:07 | 7:07 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:06 | 7:05 |
| Sunset (PM) | 5:54 | 5:55 | 5:55 | 5:56 | 5:57 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:00 | 6:01 | 6:01 | 6:02 | 6:03 | 6:03 | 6:04 | 6:05 | 6:05 | 6:06 | 6:06 | 6:07 | 6:08 | 6:08 | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 | 6:12 | 6:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.8 | 7:03 | 5:54 |
| 2 | 10.9 | 7:04 | 5:55 |
| 3 | 10.9 | 7:04 | 5:55 |
| 4 | 10.9 | 7:04 | 5:56 |
| 5 | 10.9 | 7:04 | 5:57 |
| 6 | 10.9 | 7:05 | 5:57 |
| 7 | 10.9 | 7:05 | 5:58 |
| 8 | 10.9 | 7:05 | 5:58 |
| 9 | 10.9 | 7:05 | 5:59 |
| 10 | 10.9 | 7:06 | 6:00 |
| 11 | 10.9 | 7:06 | 6:00 |
| 12 | 10.9 | 7:06 | 6:01 |
| 13 | 10.9 | 7:06 | 6:01 |
| 14 | 10.9 | 7:06 | 6:02 |
| 15 | 10.9 | 7:06 | 6:03 |
| 16 | 10.9 | 7:06 | 6:03 |
| 17 | 11.0 | 7:06 | 6:04 |
| 18 | 11.0 | 7:07 | 6:05 |
| 19 | 11.0 | 7:07 | 6:05 |
| 20 | 11.0 | 7:07 | 6:06 |
| 21 | 11.0 | 7:07 | 6:06 |
| 22 | 11.0 | 7:06 | 6:07 |
| 23 | 11.0 | 7:06 | 6:08 |
| 24 | 11.0 | 7:06 | 6:08 |
| 25 | 11.0 | 7:06 | 6:09 |
| 26 | 11.1 | 7:06 | 6:10 |
| 27 | 11.1 | 7:06 | 6:10 |
| 28 | 11.1 | 7:06 | 6:11 |
| 29 | 11.1 | 7:06 | 6:11 |
| 30 | 11.1 | 7:06 | 6:12 |
| 31 | 11.1 | 7:05 | 6:12 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 4.43 kWh/m².
For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 6.75 kWh/m² in April across the year — January's 4.43 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) | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 |
| 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 | 4.2 | Bright |
| 2 | 4.2 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.3 | Bright |
| 6 | 4.3 | Bright |
| 7 | 4.3 | Bright |
| 8 | 4.3 | Bright |
| 9 | 4.3 | Bright |
| 10 | 4.3 | Bright |
| 11 | 4.3 | Bright |
| 12 | 4.3 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.4 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.5 | Bright |
| 20 | 4.5 | Bright |
| 21 | 4.5 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.6 | Bright |
| 24 | 4.6 | Bright |
| 25 | 4.6 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.7 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.8 | Bright |
| 31 | 4.8 | Bright |
Hazard calendar for West Bay
None of West Bay's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
West Bay sits in the Atlantic hurricane belt; the season peaks August–October.
West Bay's rainy season runs September–November, when most of the year's rain falls.
Is January a good time to visit West Bay?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is one of the better times to visit West Bay for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for West Bay in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, West Bay sees daytime highs around 26°C and nights near 25°C. Worth packing: light clothes and a windbreaker. About 7 days see rain.
Sea temperature near West Bay 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 August at about 30°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 | 29 | 29 | 30 | 30 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in West Bay in January
Clear-sky midday UV in January peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in West Bay peaks around May 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 | 10 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in West Bay 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 West Bay is worst in June — around 27 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (January, 7 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) | 7 | 8 | 8 | 10 | 14 | 27 | 25 | 19 | 13 | 10 | 7 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 10 | Good |
| May | 14 | Moderate |
| Jun | 27 | Moderate |
| Jul | 25 | Moderate |
| Aug | 19 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is West Bay?
West Bay sits at 19.4°N, 81.4°W, 5 m above sea level, in Cayman Islands. The nearest listed city is George Town, 11 km away.
Topography around West Bay
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of West Bay.
Within 3 km, the terrain around West Bay has only modest variations in elevation — a maximum elevation change of 10 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 21 m; within 80 km, only modest variations in elevation — a maximum elevation change of 24 m.
The land around West Bay is covered by water (59%) within 3 km, water (91%) within 16 km, and water (97%) within 80 km.
Cayman Islands travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 113% of US
- price level, 2024
- GDP per capita
- $104,293
- 2024
- Homicide rate
- 4.4
- per 100k, 2020
- Income group
- High
- 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 West Bay (19.382°, -81.3928°, elevation 5 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).