Barnstable weather in August
In August, Barnstable sees average daytime highs of 71°F and overnight lows near 67°F, with 3.1 in of rain across 7.8 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 71°F through the month. The sky is clear or mostly clear about 42% of the time in August, and the air most often feels muggy.
Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Barnstable's 1st-clearest and 12th-windiest month. For the whole year in context, see Barnstable's year-round climate.
- Daytime high
- 71°
- 1st warmest
- Overnight low
- 67°
- 12th coldest
- Rainfall
- 3.1 in
- 7.8 wet days
- Daylight
- 13 h 42 min
- 4:54 AM – 6:36 PM
- Cloud cover
- 51%
- 1st clearest
- Wind
- 11 mph
- 12th windiest
- Solar energy
- 5.67 kWh/m²
- Travel score
- 7.1
- out of 10
Barnstable is town in Massachusetts, United States.
- Density
- 241/km²
- people per km²
- Founded
- 1637
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 71°F through the month.
A typical August day in Barnstable reaches about 71°F in the afternoon and slips back to 67°F overnight — a 4°F spread between the day's warmth and the night's chill. On most days the high lands between 67°F and 75°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.
| 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) | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 |
| Avg low (°F) | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 | 66 | 66 | 66 | 66 | 65 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 72 | 68 |
| 2 | 72 | 68 |
| 3 | 72 | 68 |
| 4 | 72 | 68 |
| 5 | 72 | 68 |
| 6 | 72 | 68 |
| 7 | 72 | 68 |
| 8 | 72 | 68 |
| 9 | 72 | 68 |
| 10 | 72 | 68 |
| 11 | 71 | 68 |
| 12 | 71 | 68 |
| 13 | 71 | 68 |
| 14 | 71 | 68 |
| 15 | 71 | 68 |
| 16 | 71 | 67 |
| 17 | 71 | 67 |
| 18 | 71 | 67 |
| 19 | 71 | 67 |
| 20 | 71 | 67 |
| 21 | 71 | 67 |
| 22 | 71 | 67 |
| 23 | 71 | 67 |
| 24 | 70 | 67 |
| 25 | 70 | 66 |
| 26 | 70 | 66 |
| 27 | 70 | 66 |
| 28 | 70 | 66 |
| 29 | 70 | 66 |
| 30 | 69 | 66 |
| 31 | 69 | 65 |
How August really feels in Barnstable
Once humidity and wind are folded in, August 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.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Barnstable weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 38° / 30° | 4.3 | 11.2 | 4.7 | 9.3 | 0.0 |
| Feb | 38° / 30° | 3.8 | 10 | 4.7 | 10.3 | 0.0 |
| Mar | 41° / 34° | 4.8 | 11.2 | 3.7 | 11.7 | 0.1 |
| Apr | 47° / 42° | 4.3 | 11.3 | 0.6 | 13.1 | 1.5 |
| May | 55° / 50° | 3.6 | 10.3 | 0 | 14.3 | 3.5 |
| Jun | 64° / 60° | 3.2 | 8.2 | 0 | 15 | 5.9 |
| Jul | 71° / 67° | 2.5 | 7.7 | 0 | 14.7 | 7.0 |
| Aug | 71° / 67° | 3.1 | 7.8 | 0 | 13.7 | 7.1 |
| Sep | 66° / 62° | 4.0 | 8.3 | 0 | 12.3 | 6.5 |
| Oct | 59° / 54° | 4.8 | 10.1 | 0 | 10.9 | 4.6 |
| Nov | 51° / 44° | 4.4 | 10 | 0.3 | 9.6 | 2.4 |
| Dec | 43° / 36° | 5.1 | 12 | 2.8 | 9 | 0.6 |
Cloud cover in August
The sky is clear or mostly clear about 42% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 43%.
| 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 (%) | 55 | 56 | 57 | 57 | 56 | 57 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 57 | 57 | 58 | 58 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 59 |
| Cloudier (%) | 45 | 44 | 43 | 43 | 44 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 43 | 43 | 42 | 42 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 55 | 45 |
| 2 | 56 | 44 |
| 3 | 57 | 43 |
| 4 | 57 | 43 |
| 5 | 56 | 44 |
| 6 | 57 | 43 |
| 7 | 56 | 44 |
| 8 | 56 | 44 |
| 9 | 56 | 44 |
| 10 | 55 | 45 |
| 11 | 55 | 45 |
| 12 | 55 | 45 |
| 13 | 55 | 45 |
| 14 | 55 | 45 |
| 15 | 55 | 45 |
| 16 | 55 | 45 |
| 17 | 55 | 45 |
| 18 | 56 | 44 |
| 19 | 56 | 44 |
| 20 | 57 | 43 |
| 21 | 57 | 43 |
| 22 | 58 | 42 |
| 23 | 58 | 42 |
| 24 | 59 | 41 |
| 25 | 60 | 40 |
| 26 | 60 | 40 |
| 27 | 60 | 40 |
| 28 | 60 | 40 |
| 29 | 60 | 40 |
| 30 | 60 | 40 |
| 31 | 59 | 41 |
Chance of precipitation in August
Barnstable gets around 3.1 in of rain over 7.8 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 25% and peaks near 27% 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 (%) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 |
| Rain chance (%) | |
|---|---|
| 1 | 27 |
| 2 | 27 |
| 3 | 27 |
| 4 | 27 |
| 5 | 27 |
| 6 | 27 |
| 7 | 27 |
| 8 | 27 |
| 9 | 27 |
| 10 | 27 |
| 11 | 27 |
| 12 | 27 |
| 13 | 27 |
| 14 | 27 |
| 15 | 27 |
| 16 | 26 |
| 17 | 26 |
| 18 | 25 |
| 19 | 25 |
| 20 | 24 |
| 21 | 24 |
| 22 | 24 |
| 23 | 23 |
| 24 | 23 |
| 25 | 23 |
| 26 | 23 |
| 27 | 23 |
| 28 | 23 |
| 29 | 24 |
| 30 | 24 |
| 31 | 24 |
Humidity in August
Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 46% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 11 |
| Comfortable (%) | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 17 | 17 | 18 | 19 | 20 | 21 | 21 | 22 | 23 | 23 | 24 |
| Humid (%) | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 |
| Muggy (%) | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 37 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 29 | 28 | 27 |
| Oppressive (%) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 3 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 1 | 12 | 31 | 43 | 12 |
| 2 | 1 | 13 | 31 | 43 | 12 |
| 3 | 1 | 13 | 32 | 42 | 12 |
| 4 | 1 | 13 | 32 | 42 | 12 |
| 5 | 1 | 13 | 32 | 42 | 12 |
| 6 | 1 | 13 | 32 | 41 | 12 |
| 7 | 1 | 13 | 32 | 41 | 12 |
| 8 | 2 | 13 | 32 | 41 | 12 |
| 9 | 2 | 14 | 32 | 40 | 12 |
| 10 | 2 | 14 | 33 | 40 | 12 |
| 11 | 2 | 14 | 33 | 39 | 12 |
| 12 | 2 | 14 | 33 | 39 | 12 |
| 13 | 2 | 14 | 33 | 39 | 11 |
| 14 | 3 | 14 | 33 | 39 | 11 |
| 15 | 3 | 14 | 34 | 38 | 11 |
| 16 | 3 | 15 | 34 | 38 | 10 |
| 17 | 3 | 15 | 35 | 38 | 10 |
| 18 | 4 | 15 | 35 | 37 | 9 |
| 19 | 4 | 16 | 35 | 37 | 9 |
| 20 | 4 | 16 | 36 | 36 | 8 |
| 21 | 4 | 17 | 36 | 35 | 7 |
| 22 | 5 | 17 | 37 | 35 | 7 |
| 23 | 5 | 18 | 37 | 34 | 6 |
| 24 | 6 | 19 | 37 | 33 | 6 |
| 25 | 6 | 20 | 37 | 32 | 5 |
| 26 | 7 | 21 | 37 | 31 | 4 |
| 27 | 8 | 21 | 37 | 30 | 4 |
| 28 | 8 | 22 | 37 | 29 | 3 |
| 29 | 9 | 23 | 36 | 29 | 3 |
| 30 | 10 | 23 | 36 | 28 | 3 |
| 31 | 11 | 24 | 36 | 27 | 3 |
Wind in August
Winds average 11 mph in August, the calmest month.
Across August, daily wind ranges from about 11 mph on the calmest days to 12 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) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| 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 | 11 | light breeze |
| 2 | 11 | light breeze |
| 3 | 11 | light breeze |
| 4 | 11 | light breeze |
| 5 | 11 | light breeze |
| 6 | 11 | light breeze |
| 7 | 11 | light breeze |
| 8 | 11 | light breeze |
| 9 | 11 | light breeze |
| 10 | 11 | light breeze |
| 11 | 11 | light breeze |
| 12 | 11 | light breeze |
| 13 | 11 | light breeze |
| 14 | 11 | light breeze |
| 15 | 11 | light breeze |
| 16 | 11 | light breeze |
| 17 | 11 | light breeze |
| 18 | 11 | light breeze |
| 19 | 11 | light breeze |
| 20 | 11 | light breeze |
| 21 | 11 | light breeze |
| 22 | 11 | light breeze |
| 23 | 11 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | light breeze |
| 27 | 12 | light breeze |
| 28 | 12 | light breeze |
| 29 | 12 | light breeze |
| 30 | 12 | light breeze |
| 31 | 12 | light breeze |
Sunrise & sunset in August
Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over August. Sunrise moves from 4:39 AM to 5:10 AM, and sunset from 6:55 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) | 14.3 | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.0 |
| Sunrise (AM) | 4:39 | 4:40 | 4:41 | 4:42 | 4:43 | 4:44 | 4:45 | 4:46 | 4:47 | 4:48 | 4:49 | 4:50 | 4:51 | 4:52 | 4:53 | 4:54 | 4:56 | 4:57 | 4:58 | 4:59 | 5:00 | 5:01 | 5:02 | 5:03 | 5:04 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 |
| Sunset (PM) | 6:55 | 6:54 | 6:53 | 6:52 | 6:51 | 6:50 | 6:48 | 6:47 | 6:46 | 6:45 | 6:43 | 6:42 | 6:40 | 6:39 | 6:38 | 6:36 | 6:35 | 6:33 | 6:32 | 6:30 | 6:29 | 6:27 | 6:25 | 6:24 | 6:22 | 6:20 | 6:19 | 6:17 | 6:15 | 6:14 | 6:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.3 | 4:39 | 6:55 |
| 2 | 14.2 | 4:40 | 6:54 |
| 3 | 14.2 | 4:41 | 6:53 |
| 4 | 14.2 | 4:42 | 6:52 |
| 5 | 14.1 | 4:43 | 6:51 |
| 6 | 14.1 | 4:44 | 6:50 |
| 7 | 14.1 | 4:45 | 6:48 |
| 8 | 14.0 | 4:46 | 6:47 |
| 9 | 14.0 | 4:47 | 6:46 |
| 10 | 13.9 | 4:48 | 6:45 |
| 11 | 13.9 | 4:49 | 6:43 |
| 12 | 13.9 | 4:50 | 6:42 |
| 13 | 13.8 | 4:51 | 6:40 |
| 14 | 13.8 | 4:52 | 6:39 |
| 15 | 13.7 | 4:53 | 6:38 |
| 16 | 13.7 | 4:54 | 6:36 |
| 17 | 13.7 | 4:56 | 6:35 |
| 18 | 13.6 | 4:57 | 6:33 |
| 19 | 13.6 | 4:58 | 6:32 |
| 20 | 13.5 | 4:59 | 6:30 |
| 21 | 13.5 | 5:00 | 6:29 |
| 22 | 13.4 | 5:01 | 6:27 |
| 23 | 13.4 | 5:02 | 6:25 |
| 24 | 13.3 | 5:03 | 6:24 |
| 25 | 13.3 | 5:04 | 6:22 |
| 26 | 13.3 | 5:05 | 6:20 |
| 27 | 13.2 | 5:06 | 6:19 |
| 28 | 13.2 | 5:07 | 6:17 |
| 29 | 13.1 | 5:08 | 6:15 |
| 30 | 13.1 | 5:09 | 6:14 |
| 31 | 13.0 | 5:10 | 6:12 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.67 kWh/m².
For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 6.41 kWh/m² in July across the year — August's 5.67 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) | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 |
| Level | Intense | Intense | 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 | 6.0 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Bright |
| 4 | 6.0 | Bright |
| 5 | 5.9 | Bright |
| 6 | 5.9 | Bright |
| 7 | 5.9 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.8 | Bright |
| 11 | 5.7 | Bright |
| 12 | 5.7 | Bright |
| 13 | 5.7 | Bright |
| 14 | 5.7 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.6 | Bright |
| 17 | 5.6 | Bright |
| 18 | 5.6 | Bright |
| 19 | 5.6 | Bright |
| 20 | 5.5 | Bright |
| 21 | 5.5 | Bright |
| 22 | 5.5 | Bright |
| 23 | 5.5 | Bright |
| 24 | 5.5 | Bright |
| 25 | 5.4 | Bright |
| 26 | 5.4 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
| 31 | 5.2 | Bright |
Hazard calendar for Barnstable
In August, Barnstable sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Barnstable sits in the Atlantic hurricane belt; the season peaks August–October.
Is August a good time to visit Barnstable?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is one of the better times to visit Barnstable for general sightseeing.
What to pack for Barnstable in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Barnstable sees daytime highs around 71°F and nights near 67°F. Worth packing: sun protection. About 8 days see rain.
Sea temperature near Barnstable in August
The nearest coast averages about 69°F in August — 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 69°F and coldest in February near 37°F.
It's comfortable for a long swim from Aug 5 to Aug 23 — about 0.6 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 40 | 37 | 38 | 44 | 51 | 59 | 67 | 69 | 66 | 59 | 51 | 45 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Cool | Cool | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 40 | Bracing |
| Feb | 37 | Bracing |
| Mar | 38 | Bracing |
| Apr | 44 | Bracing |
| May | 51 | Bracing |
| Jun | 59 | Cool |
| Jul | 67 | Cool |
| Aug | 69 | Refreshing |
| Sep | 66 | Cool |
| Oct | 59 | Cool |
| Nov | 51 | Bracing |
| Dec | 45 | Bracing |
UV index in Barnstable in August
Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Barnstable peaks around June 21 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 5 | 7 | 8 | 8 | 5 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Moderate | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 5 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Where is Barnstable?
Barnstable sits at 41.7°N, 70.3°W, 36 ft above sea level, in United States. The nearest listed city is Yarmouth, 3.7 mi away.
Topography around Barnstable
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Barnstable.
Within 2 miles, the terrain around Barnstable has only modest variations in elevation — a maximum elevation change of 171 ft around an average of 56 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 315 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 630 ft.
The land around Barnstable is covered by trees (51%) and water (25%) within 2 miles, water (58%) and trees (32%) within 10 miles, and water (74%) and trees (22%) 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 Barnstable (41.7001°, -70.2995°, elevation 36 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).