Bluffton weather in December
In December, Bluffton sees average daytime highs of 61°F and overnight lows near 48°F, with 3.3 in of rain across 8.6 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.
Highs ease over the month, from about 63°F in the first days to 59°F by the end. The sky is clear or mostly clear about 40% of the time in December, and the air most often feels dry.
Daylight stretches from about 10 hours at the start of December to 9 h 54 min by month's end. Set against the rest of the year, December is Bluffton's 6th-clearest and 5th-windiest month. For the whole year in context, see Bluffton's year-round climate.
- Daytime high
- 61°
- 10th warmest
- Overnight low
- 48°
- 3rd coldest
- Rainfall
- 3.3 in
- 8.6 wet days
- Daylight
- 9 h 54 min
- 7:23 AM – 5:17 PM
- Cloud cover
- 54%
- 6th clearest
- Wind
- 9 mph
- 5th windiest
- Solar energy
- 2.64 kWh/m²
- Travel score
- 5.3
- out of 10
Bluffton is town in Beaufort County, South Carolina, United States.
- Density
- 120/km²
- people per km²
- Founded
- 1728
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 63°F in the first days to 59°F by the end.
A typical December day in Bluffton reaches about 61°F in the afternoon and slips back to 48°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 50°F and 70°F. Set against its neighbours, December runs about 6°F cooler than November and about 2°F warmer than January.
| 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 (°F) | 64 | 63 | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 |
| Avg low (°F) | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 64 | 51 |
| 2 | 63 | 51 |
| 3 | 63 | 50 |
| 4 | 63 | 50 |
| 5 | 63 | 50 |
| 6 | 62 | 50 |
| 7 | 62 | 50 |
| 8 | 62 | 49 |
| 9 | 62 | 49 |
| 10 | 62 | 49 |
| 11 | 62 | 49 |
| 12 | 61 | 49 |
| 13 | 61 | 49 |
| 14 | 61 | 49 |
| 15 | 61 | 48 |
| 16 | 61 | 48 |
| 17 | 61 | 48 |
| 18 | 60 | 48 |
| 19 | 60 | 48 |
| 20 | 60 | 48 |
| 21 | 60 | 47 |
| 22 | 60 | 47 |
| 23 | 60 | 47 |
| 24 | 60 | 47 |
| 25 | 60 | 47 |
| 26 | 59 | 47 |
| 27 | 59 | 47 |
| 28 | 59 | 47 |
| 29 | 59 | 47 |
| 30 | 59 | 47 |
| 31 | 59 | 47 |
How December really feels in Bluffton
Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Bluffton weather by month
How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 58° / 46° | 3.3 | 8.5 | 10.1 | 4.7 |
| Feb | 61° / 48° | 3.2 | 8.4 | 10.8 | 5.1 |
| Mar | 66° / 53° | 3.1 | 7.9 | 11.8 | 6.5 |
| Apr | 72° / 60° | 2.7 | 6.8 | 12.8 | 7.3 |
| May | 79° / 68° | 2.4 | 8.5 | 13.6 | 7.1 |
| Jun | 84° / 74° | 4.6 | 15.3 | 14.1 | 5.0 |
| Jul | 87° / 77° | 4.8 | 16.6 | 13.9 | 4.1 |
| Aug | 85° / 77° | 6.1 | 18.9 | 13.2 | 4.1 |
| Sep | 82° / 73° | 4.6 | 13.2 | 12.2 | 5.7 |
| Oct | 75° / 64° | 3.8 | 7.6 | 11.2 | 7.4 |
| Nov | 67° / 54° | 2.4 | 6.3 | 10.3 | 6.9 |
| Dec | 61° / 48° | 3.3 | 8.6 | 9.9 | 5.3 |
Cloud cover in December
The sky is clear or mostly clear about 40% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over 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 (%) | 58 | 57 | 56 | 56 | 55 | 54 | 53 | 53 | 52 | 51 | 51 | 52 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 49 | 48 | 48 | 48 | 48 | 48 |
| Cloudier (%) | 42 | 43 | 44 | 44 | 45 | 46 | 47 | 47 | 48 | 49 | 49 | 48 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 51 | 52 | 52 | 52 | 52 | 52 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 58 | 42 |
| 2 | 57 | 43 |
| 3 | 56 | 44 |
| 4 | 56 | 44 |
| 5 | 55 | 45 |
| 6 | 54 | 46 |
| 7 | 53 | 47 |
| 8 | 53 | 47 |
| 9 | 52 | 48 |
| 10 | 51 | 49 |
| 11 | 51 | 49 |
| 12 | 52 | 48 |
| 13 | 51 | 49 |
| 14 | 51 | 49 |
| 15 | 51 | 49 |
| 16 | 51 | 49 |
| 17 | 51 | 49 |
| 18 | 51 | 49 |
| 19 | 51 | 49 |
| 20 | 51 | 49 |
| 21 | 51 | 49 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 50 | 50 |
| 25 | 50 | 50 |
| 26 | 49 | 51 |
| 27 | 48 | 52 |
| 28 | 48 | 52 |
| 29 | 48 | 52 |
| 30 | 48 | 52 |
| 31 | 48 | 52 |
Chance of precipitation in December
Bluffton gets around 3.3 in of rain over 8.6 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 28% and peaks near 30% 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 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 |
| Rain chance (%) | |
|---|---|
| 1 | 23 |
| 2 | 23 |
| 3 | 24 |
| 4 | 24 |
| 5 | 25 |
| 6 | 25 |
| 7 | 26 |
| 8 | 26 |
| 9 | 27 |
| 10 | 27 |
| 11 | 28 |
| 12 | 28 |
| 13 | 29 |
| 14 | 29 |
| 15 | 29 |
| 16 | 30 |
| 17 | 30 |
| 18 | 30 |
| 19 | 30 |
| 20 | 30 |
| 21 | 30 |
| 22 | 30 |
| 23 | 30 |
| 24 | 30 |
| 25 | 30 |
| 26 | 30 |
| 27 | 29 |
| 28 | 29 |
| 29 | 29 |
| 30 | 28 |
| 31 | 28 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 72% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 64 | 64 | 65 | 66 | 66 | 66 | 67 | 67 | 68 | 68 | 70 | 71 | 71 | 72 | 72 | 72 | 74 | 74 | 75 | 75 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 |
| Comfortable (%) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 |
| Humid (%) | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Muggy (%) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 64 | 18 | 15 | 3 |
| 2 | 64 | 18 | 15 | 3 |
| 3 | 65 | 18 | 15 | 2 |
| 4 | 66 | 18 | 14 | 2 |
| 5 | 66 | 18 | 14 | 2 |
| 6 | 66 | 18 | 14 | 2 |
| 7 | 67 | 18 | 13 | 2 |
| 8 | 67 | 18 | 13 | 2 |
| 9 | 68 | 18 | 12 | 2 |
| 10 | 68 | 18 | 12 | 2 |
| 11 | 70 | 18 | 11 | 1 |
| 12 | 71 | 17 | 11 | 1 |
| 13 | 71 | 17 | 11 | 1 |
| 14 | 72 | 17 | 10 | 1 |
| 15 | 72 | 16 | 10 | 2 |
| 16 | 72 | 16 | 10 | 2 |
| 17 | 74 | 15 | 9 | 2 |
| 18 | 74 | 15 | 9 | 2 |
| 19 | 75 | 14 | 9 | 2 |
| 20 | 75 | 14 | 9 | 2 |
| 21 | 76 | 13 | 9 | 2 |
| 22 | 76 | 13 | 9 | 2 |
| 23 | 77 | 12 | 9 | 2 |
| 24 | 77 | 12 | 9 | 2 |
| 25 | 77 | 12 | 9 | 2 |
| 26 | 77 | 12 | 9 | 2 |
| 27 | 77 | 12 | 9 | 2 |
| 28 | 77 | 12 | 9 | 2 |
| 29 | 77 | 12 | 9 | 2 |
| 30 | 77 | 12 | 9 | 2 |
| 31 | 76 | 13 | 9 | 2 |
Wind in December
Winds average 9 mph in December.
Across December, daily wind ranges from about 9 mph on the calmest days to 10 mph 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 (mph) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 9 | light breeze |
| 2 | 9 | light breeze |
| 3 | 9 | light breeze |
| 4 | 9 | light breeze |
| 5 | 9 | light breeze |
| 6 | 9 | light breeze |
| 7 | 9 | light breeze |
| 8 | 9 | light breeze |
| 9 | 9 | light breeze |
| 10 | 9 | light breeze |
| 11 | 9 | light breeze |
| 12 | 10 | light breeze |
| 13 | 10 | light breeze |
| 14 | 10 | light breeze |
| 15 | 10 | light breeze |
| 16 | 10 | light breeze |
| 17 | 10 | light breeze |
| 18 | 10 | light breeze |
| 19 | 10 | light breeze |
| 20 | 10 | light breeze |
| 21 | 10 | light breeze |
| 22 | 10 | light breeze |
| 23 | 10 | light breeze |
| 24 | 10 | light breeze |
| 25 | 10 | light breeze |
| 26 | 10 | light breeze |
| 27 | 10 | light breeze |
| 28 | 10 | light breeze |
| 29 | 10 | light breeze |
| 30 | 10 | light breeze |
| 31 | 10 | light breeze |
Sunrise & sunset in December
Daylight runs from about 10 hours at the start of December to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 7:12 AM to 7:29 AM, and sunset from 5:14 PM to 5:24 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) | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 |
| Sunrise (AM) | 7:12 | 7:13 | 7:14 | 7:14 | 7:15 | 7:16 | 7:17 | 7:17 | 7:18 | 7:19 | 7:20 | 7:20 | 7:21 | 7:21 | 7:22 | 7:23 | 7:23 | 7:24 | 7:24 | 7:25 | 7:25 | 7:26 | 7:26 | 7:27 | 7:27 | 7:28 | 7:28 | 7:28 | 7:29 | 7:29 | 7:29 |
| Sunset (PM) | 5:14 | 5:14 | 5:14 | 5:14 | 5:14 | 5:14 | 5:15 | 5:15 | 5:15 | 5:15 | 5:15 | 5:15 | 5:16 | 5:16 | 5:16 | 5:17 | 5:17 | 5:17 | 5:18 | 5:18 | 5:18 | 5:19 | 5:19 | 5:20 | 5:20 | 5:21 | 5:22 | 5:22 | 5:23 | 5:23 | 5:24 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.0 | 7:12 | 5:14 |
| 2 | 10.0 | 7:13 | 5:14 |
| 3 | 10.0 | 7:14 | 5:14 |
| 4 | 10.0 | 7:14 | 5:14 |
| 5 | 10.0 | 7:15 | 5:14 |
| 6 | 10.0 | 7:16 | 5:14 |
| 7 | 10.0 | 7:17 | 5:15 |
| 8 | 10.0 | 7:17 | 5:15 |
| 9 | 9.9 | 7:18 | 5:15 |
| 10 | 9.9 | 7:19 | 5:15 |
| 11 | 9.9 | 7:20 | 5:15 |
| 12 | 9.9 | 7:20 | 5:15 |
| 13 | 9.9 | 7:21 | 5:16 |
| 14 | 9.9 | 7:21 | 5:16 |
| 15 | 9.9 | 7:22 | 5:16 |
| 16 | 9.9 | 7:23 | 5:17 |
| 17 | 9.9 | 7:23 | 5:17 |
| 18 | 9.9 | 7:24 | 5:17 |
| 19 | 9.9 | 7:24 | 5:18 |
| 20 | 9.9 | 7:25 | 5:18 |
| 21 | 9.9 | 7:25 | 5:18 |
| 22 | 9.9 | 7:26 | 5:19 |
| 23 | 9.9 | 7:26 | 5:19 |
| 24 | 9.9 | 7:27 | 5:20 |
| 25 | 9.9 | 7:27 | 5:20 |
| 26 | 9.9 | 7:28 | 5:21 |
| 27 | 9.9 | 7:28 | 5:22 |
| 28 | 9.9 | 7:28 | 5:22 |
| 29 | 9.9 | 7:29 | 5:23 |
| 30 | 9.9 | 7:29 | 5:23 |
| 31 | 9.9 | 7:29 | 5:24 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.64 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 6.48 kWh/m² in May across the year — December's 2.64 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) | 2.9 | 2.8 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.9 | Moderate |
| 2 | 2.8 | Moderate |
| 3 | 2.8 | Moderate |
| 4 | 2.8 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.7 | Moderate |
| 7 | 2.7 | Moderate |
| 8 | 2.7 | Moderate |
| 9 | 2.7 | Moderate |
| 10 | 2.7 | Moderate |
| 11 | 2.6 | Moderate |
| 12 | 2.6 | Moderate |
| 13 | 2.6 | Moderate |
| 14 | 2.6 | Moderate |
| 15 | 2.6 | Moderate |
| 16 | 2.6 | Moderate |
| 17 | 2.6 | Moderate |
| 18 | 2.6 | Moderate |
| 19 | 2.6 | Moderate |
| 20 | 2.6 | Moderate |
| 21 | 2.6 | Moderate |
| 22 | 2.6 | Moderate |
| 23 | 2.6 | Moderate |
| 24 | 2.6 | Moderate |
| 25 | 2.6 | Moderate |
| 26 | 2.6 | Moderate |
| 27 | 2.6 | Moderate |
| 28 | 2.6 | Moderate |
| 29 | 2.6 | Moderate |
| 30 | 2.6 | Moderate |
| 31 | 2.6 | Moderate |
Hazard calendar for Bluffton
None of Bluffton's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Bluffton sits in the Atlantic hurricane belt; the season peaks August–October.
Is December a good time to visit Bluffton?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Bluffton for sightseeing.
What to pack for Bluffton in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Bluffton sees daytime highs around 61°F and nights near 48°F. Worth packing: a warm layer and rain gear. About 9 days see rain.
Sea temperature near Bluffton in December
The nearest coast averages about 63°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 mi away) is warmest in August at about 84°F and coldest in February near 59°F.
It's comfortable for a long swim from Apr 23 to Nov 17 — about 6.9 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 60 | 59 | 61 | 66 | 74 | 80 | 83 | 84 | 82 | 76 | 68 | 63 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Warm | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 60 | Cool |
| Feb | 59 | Cool |
| Mar | 61 | Cool |
| Apr | 66 | Cool |
| May | 74 | Refreshing |
| Jun | 80 | Warm |
| Jul | 83 | Tropical |
| Aug | 84 | Tropical |
| Sep | 82 | Warm |
| Oct | 76 | Warm |
| Nov | 68 | Refreshing |
| Dec | 63 | Cool |
UV index in Bluffton in December
Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bluffton peaks around July 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 7 | 7 | 8 | 10 | 10 | 9 | 7 | 6 | 5 | 3 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 3 | Moderate |
Air quality in Bluffton in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Bluffton is worst in March — around 25 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 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) | 9 | 12 | 25 | 14 | 14 | 15 | 17 | 15 | 11 | 8 | 8 | 7 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 12 | Moderate |
| Mar | 25 | Moderate |
| Apr | 14 | Moderate |
| May | 14 | Moderate |
| Jun | 15 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Bluffton?
Bluffton sits at 32.2°N, 80.9°W, 20 ft above sea level, in United States. The nearest listed city is Hilton Head, 6.2 mi away.
Topography around Bluffton
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Bluffton.
Within 2 miles, the terrain around Bluffton has only modest variations in elevation — a maximum elevation change of 115 ft around an average of 39 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 210 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 305 ft.
The land around Bluffton is covered by trees (60%) within 2 miles, trees (47%), water (22%) and wetland (20%) within 10 miles, and trees (52%) and water (31%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- 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 Bluffton (32.2371°, -80.8604°, elevation 20 ft), 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).