Saint Croix weather in October
In October, Saint Croix sees average daytime highs of 28°C and overnight lows near 26°C, with 127 mm of rain across 17.9 wet days and about 11.6 hours of daylight. It is the 3rd-warmest and 2nd-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 41% of the time in October, and the air most often feels oppressive.
Daylight stretches from about 11 h 48 min at the start of October to 11 h 24 min by month's end. Set against the rest of the year, October is Saint Croix's 9th-clearest and 12th-windiest month. For the whole year in context, see Saint Croix's year-round climate.
- Daytime high
- 28°
- 3rd warmest
- Overnight low
- 26°
- 9th coldest
- Rainfall
- 127 mm
- 17.9 wet days
- Daylight
- 11 h 36 min
- 6:16 AM – 5:52 PM
- Cloud cover
- 55%
- 9th clearest
- Wind
- 21 km/h
- 12th windiest
- Solar energy
- 5.31 kWh/m²
- Travel score
- 5.2
- out of 10
Temperature in October
Day-to-day highs hold fairly steady near 28°C through the month.
A typical October day in Saint Croix reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°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, October runs on par with September and on par with November.
| 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) | 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 high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 26 |
| 2 | 28 | 26 |
| 3 | 28 | 26 |
| 4 | 28 | 26 |
| 5 | 28 | 26 |
| 6 | 28 | 26 |
| 7 | 28 | 26 |
| 8 | 28 | 26 |
| 9 | 28 | 26 |
| 10 | 28 | 26 |
| 11 | 28 | 26 |
| 12 | 28 | 26 |
| 13 | 28 | 26 |
| 14 | 28 | 26 |
| 15 | 28 | 26 |
| 16 | 28 | 26 |
| 17 | 28 | 26 |
| 18 | 28 | 26 |
| 19 | 28 | 26 |
| 20 | 28 | 26 |
| 21 | 28 | 26 |
| 22 | 28 | 26 |
| 23 | 28 | 26 |
| 24 | 28 | 26 |
| 25 | 28 | 26 |
| 26 | 28 | 26 |
| 27 | 28 | 26 |
| 28 | 28 | 26 |
| 29 | 28 | 26 |
| 30 | 28 | 26 |
| 31 | 28 | 26 |
How October really feels in Saint Croix
Once humidity and wind are folded in, October averages 5 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Saint Croix weather by month
How October compares with the rest of the year at a glance. October is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 25° | 27 | 8.3 | 11.1 | 7.6 |
| Feb | 26° / 24° | 18 | 5.9 | 11.4 | 7.9 |
| Mar | 26° / 24° | 20 | 6.1 | 11.9 | 7.9 |
| Apr | 26° / 25° | 32 | 7.5 | 12.4 | 7.4 |
| May | 27° / 26° | 75 | 12.3 | 12.8 | 6.3 |
| Jun | 28° / 26° | 58 | 11.7 | 13 | 6.1 |
| Jul | 28° / 26° | 80 | 14.6 | 13 | 5.9 |
| Aug | 28° / 27° | 104 | 16.9 | 12.6 | 5.1 |
| Sep | 28° / 27° | 137 | 17.6 | 12.1 | 4.8 |
| Oct | 28° / 26° | 127 | 17.9 | 11.6 | 5.2 |
| Nov | 27° / 26° | 116 | 15.5 | 11.2 | 5.9 |
| Dec | 26° / 25° | 48 | 11.7 | 11 | 6.9 |
Cloud cover in October
The sky is clear or mostly clear about 41% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 45%. 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 (%) | 50 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 53 | 53 | 53 | 54 | 55 | 56 | 56 | 57 | 58 | 59 | 59 | 60 | 60 | 61 | 61 | 61 | 61 | 61 | 61 |
| Cloudier (%) | 50 | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 47 | 47 | 47 | 46 | 45 | 44 | 44 | 43 | 42 | 41 | 41 | 40 | 40 | 39 | 39 | 39 | 39 | 39 | 39 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 50 | 50 |
| 2 | 49 | 51 |
| 3 | 50 | 50 |
| 4 | 50 | 50 |
| 5 | 50 | 50 |
| 6 | 50 | 50 |
| 7 | 50 | 50 |
| 8 | 50 | 50 |
| 9 | 50 | 50 |
| 10 | 51 | 49 |
| 11 | 51 | 49 |
| 12 | 51 | 49 |
| 13 | 53 | 47 |
| 14 | 53 | 47 |
| 15 | 53 | 47 |
| 16 | 54 | 46 |
| 17 | 55 | 45 |
| 18 | 56 | 44 |
| 19 | 56 | 44 |
| 20 | 57 | 43 |
| 21 | 58 | 42 |
| 22 | 59 | 41 |
| 23 | 59 | 41 |
| 24 | 60 | 40 |
| 25 | 60 | 40 |
| 26 | 61 | 39 |
| 27 | 61 | 39 |
| 28 | 61 | 39 |
| 29 | 61 | 39 |
| 30 | 61 | 39 |
| 31 | 61 | 39 |
Chance of precipitation in October
Saint Croix gets around 127 mm of rain over 17.9 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 58% and peaks near 62% 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 (%) | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 60 | 60 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 57 | 57 |
| Rain chance (%) | |
|---|---|
| 1 | 61 |
| 2 | 61 |
| 3 | 61 |
| 4 | 62 |
| 5 | 62 |
| 6 | 62 |
| 7 | 62 |
| 8 | 62 |
| 9 | 62 |
| 10 | 61 |
| 11 | 61 |
| 12 | 60 |
| 13 | 60 |
| 14 | 59 |
| 15 | 58 |
| 16 | 58 |
| 17 | 57 |
| 18 | 57 |
| 19 | 56 |
| 20 | 56 |
| 21 | 55 |
| 22 | 55 |
| 23 | 55 |
| 24 | 55 |
| 25 | 55 |
| 26 | 55 |
| 27 | 55 |
| 28 | 56 |
| 29 | 56 |
| 30 | 57 |
| 31 | 57 |
Humidity in October
Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| Oppressive (%) | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 66 | 67 | 67 | 68 | 68 | 69 | 69 | 70 | 70 | 71 | 71 | 72 | 72 | 73 | 74 | 75 | 75 | 76 |
| Miserable (%) | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 23 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 0 | 54 | 46 |
| 2 | 0 | 55 | 45 |
| 3 | 0 | 56 | 44 |
| 4 | 0 | 57 | 43 |
| 5 | 0 | 58 | 42 |
| 6 | 0 | 59 | 41 |
| 7 | 0 | 60 | 40 |
| 8 | 0 | 61 | 39 |
| 9 | 0 | 62 | 38 |
| 10 | 0 | 63 | 37 |
| 11 | 0 | 64 | 36 |
| 12 | 0 | 65 | 35 |
| 13 | 0 | 66 | 34 |
| 14 | 0 | 66 | 34 |
| 15 | 0 | 67 | 33 |
| 16 | 0 | 67 | 33 |
| 17 | 0 | 68 | 32 |
| 18 | 0 | 68 | 32 |
| 19 | 0 | 69 | 31 |
| 20 | 0 | 69 | 31 |
| 21 | 0 | 70 | 30 |
| 22 | 0 | 70 | 30 |
| 23 | 0 | 71 | 29 |
| 24 | 0 | 71 | 29 |
| 25 | 0 | 72 | 28 |
| 26 | 0 | 72 | 28 |
| 27 | 0 | 73 | 27 |
| 28 | 0 | 74 | 26 |
| 29 | 0 | 75 | 25 |
| 30 | 1 | 75 | 24 |
| 31 | 1 | 76 | 23 |
Wind in October
Winds average 21 km/h in October, the calmest month.
Across October, daily wind ranges from about 20 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) | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 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 | 21 | breezy |
| 2 | 21 | breezy |
| 3 | 21 | breezy |
| 4 | 21 | breezy |
| 5 | 21 | breezy |
| 6 | 20 | breezy |
| 7 | 20 | breezy |
| 8 | 20 | breezy |
| 9 | 20 | breezy |
| 10 | 20 | breezy |
| 11 | 20 | breezy |
| 12 | 20 | breezy |
| 13 | 20 | breezy |
| 14 | 20 | breezy |
| 15 | 20 | breezy |
| 16 | 20 | breezy |
| 17 | 21 | breezy |
| 18 | 21 | breezy |
| 19 | 21 | breezy |
| 20 | 21 | breezy |
| 21 | 21 | breezy |
| 22 | 21 | breezy |
| 23 | 21 | breezy |
| 24 | 21 | breezy |
| 25 | 21 | breezy |
| 26 | 21 | breezy |
| 27 | 21 | breezy |
| 28 | 21 | breezy |
| 29 | 22 | breezy |
| 30 | 22 | breezy |
| 31 | 22 | breezy |
Sunrise & sunset in October
Daylight runs from about 11 h 48 min at the start of October to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over October. Sunrise moves from 6:13 AM to 6:22 AM, and sunset from 6:03 PM to 5:43 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) | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 |
| Sunrise (AM) | 6:13 | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 |
| Sunset (PM) | 6:03 | 6:02 | 6:02 | 6:01 | 6:00 | 5:59 | 5:58 | 5:58 | 5:57 | 5:56 | 5:55 | 5:55 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:50 | 5:50 | 5:49 | 5:49 | 5:48 | 5:47 | 5:47 | 5:46 | 5:46 | 5:45 | 5:45 | 5:44 | 5:44 | 5:43 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:13 | 6:03 |
| 2 | 11.8 | 6:13 | 6:02 |
| 3 | 11.8 | 6:13 | 6:02 |
| 4 | 11.8 | 6:13 | 6:01 |
| 5 | 11.8 | 6:14 | 6:00 |
| 6 | 11.8 | 6:14 | 5:59 |
| 7 | 11.7 | 6:14 | 5:58 |
| 8 | 11.7 | 6:14 | 5:58 |
| 9 | 11.7 | 6:14 | 5:57 |
| 10 | 11.7 | 6:15 | 5:56 |
| 11 | 11.7 | 6:15 | 5:55 |
| 12 | 11.7 | 6:15 | 5:55 |
| 13 | 11.6 | 6:15 | 5:54 |
| 14 | 11.6 | 6:16 | 5:53 |
| 15 | 11.6 | 6:16 | 5:52 |
| 16 | 11.6 | 6:16 | 5:52 |
| 17 | 11.6 | 6:17 | 5:51 |
| 18 | 11.6 | 6:17 | 5:50 |
| 19 | 11.5 | 6:17 | 5:50 |
| 20 | 11.5 | 6:18 | 5:49 |
| 21 | 11.5 | 6:18 | 5:49 |
| 22 | 11.5 | 6:18 | 5:48 |
| 23 | 11.5 | 6:19 | 5:47 |
| 24 | 11.5 | 6:19 | 5:47 |
| 25 | 11.4 | 6:19 | 5:46 |
| 26 | 11.4 | 6:20 | 5:46 |
| 27 | 11.4 | 6:20 | 5:45 |
| 28 | 11.4 | 6:20 | 5:45 |
| 29 | 11.4 | 6:21 | 5:44 |
| 30 | 11.4 | 6:21 | 5:44 |
| 31 | 11.4 | 6:22 | 5:43 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 5.31 kWh/m².
For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.65 kWh/m² in April across the year — October's 5.31 kWh/m² falls in the middle.
| 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) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 |
| 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 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.4 | Bright |
| 8 | 5.4 | Bright |
| 9 | 5.4 | Bright |
| 10 | 5.4 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.3 | Bright |
| 13 | 5.3 | Bright |
| 14 | 5.3 | Bright |
| 15 | 5.3 | Bright |
| 16 | 5.3 | Bright |
| 17 | 5.3 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.1 | Bright |
| 27 | 5.1 | Bright |
| 28 | 5.1 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.0 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Saint Croix
In October, Saint Croix sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Saint Croix sits in the Atlantic hurricane belt; the season peaks August–October.
Saint Croix's rainy season runs May–May, when most of the year's rain falls.
Saint Croix sees seasonal dust haze (July), heaviest in July.
Is October a good time to visit Saint Croix?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Saint Croix for sightseeing.
What to pack for Saint Croix in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Saint Croix sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 18 days see rain.
Sea temperature near Saint Croix in October
The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) 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 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Saint Croix in October
Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Saint Croix peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (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) | 8 | 10 | 13 | 13 | 11 | 12 | 11 | 11 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | 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 Saint Croix in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Saint Croix is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.2× 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 | 14 | 23 | 24 | 20 | 15 | 15 | 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 | 14 | Moderate |
| Jun | 23 | Moderate |
| Jul | 24 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 9 | Good |
| Dec | 6 | Good |
Where is Saint Croix?
Saint Croix sits at 17.7°N, 64.7°W, 87 m above sea level, in U.S. Virgin Islands. The nearest listed city is Charlotte Amalie, 71 km away.
Topography around Saint Croix
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint Croix.
Within 3 km, the terrain around Saint Croix has only modest variations in elevation — a maximum elevation change of 177 m around an average of 57 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 346 m; within 80 km, significant variations in elevation — a maximum elevation change of 512 m.
The land around Saint Croix is covered by trees (52%) and artificial surfaces (31%) within 3 km, water (74%) within 16 km, and water (96%) within 80 km.
U.S. Virgin Islands travel facts
- Power plugs
- Type A / B
- 110 V · 60 Hz
- Prices
- ≈ 89% of US
- price level, 2022
- GDP per capita
- $44,321
- 2022
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 49.9
- per 100k, 2012
- Income group
- High
- World Bank
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 Saint Croix (17.7275°, -64.747°, elevation 87 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).