Yarmouth weather in July
In July, Yarmouth sees average daytime highs of 71°F and overnight lows near 67°F, with 2.5 in of rain across 7.7 wet days and about 14.7 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.
Highs climb over the month, from about 69°F in the first days to 72°F by the end. The sky is clear or mostly clear about 38% of the time in July, and the air most often feels muggy.
Daylight stretches from about 15 hours at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is Yarmouth's 3rd-clearest and 11th-windiest month. For the whole year in context, see Yarmouth's year-round climate.
- Daytime high
- 71°
- 2nd warmest
- Overnight low
- 67°
- 11th coldest
- Rainfall
- 2.5 in
- 7.7 wet days
- Daylight
- 14 h 42 min
- 4:24 AM – 7:09 PM
- Cloud cover
- 53%
- 3rd clearest
- Wind
- 12 mph
- 11th windiest
- Solar energy
- 6.41 kWh/m²
- Travel score
- 7.0
- out of 10
Yarmouth is town in Massachusetts, United States.
- Density
- 345/km²
- people per km²
- Founded
- 1639
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Highs climb over the month, from about 69°F in the first days to 72°F by the end.
A typical July day in Yarmouth 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 66°F and 75°F. Set against its neighbours, July runs about 7°F warmer than June and on par with August.
| 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) | 69 | 69 | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
| Avg low (°F) | 64 | 65 | 65 | 65 | 65 | 65 | 66 | 66 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 69 | 64 |
| 2 | 69 | 65 |
| 3 | 69 | 65 |
| 4 | 69 | 65 |
| 5 | 69 | 65 |
| 6 | 70 | 65 |
| 7 | 70 | 66 |
| 8 | 70 | 66 |
| 9 | 70 | 66 |
| 10 | 70 | 66 |
| 11 | 71 | 66 |
| 12 | 71 | 67 |
| 13 | 71 | 67 |
| 14 | 71 | 67 |
| 15 | 71 | 67 |
| 16 | 71 | 67 |
| 17 | 71 | 67 |
| 18 | 71 | 67 |
| 19 | 71 | 67 |
| 20 | 71 | 67 |
| 21 | 71 | 68 |
| 22 | 72 | 68 |
| 23 | 72 | 68 |
| 24 | 72 | 68 |
| 25 | 72 | 68 |
| 26 | 72 | 68 |
| 27 | 72 | 68 |
| 28 | 72 | 68 |
| 29 | 72 | 68 |
| 30 | 72 | 68 |
| 31 | 72 | 68 |
How July really feels in Yarmouth
Once humidity and wind are folded in, July 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.
July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Yarmouth weather by month
How July compares with the rest of the year at a glance. July is the 2nd-warmest and 12th-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 July
The sky is clear or mostly clear about 38% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 44%.
| 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 (%) | 54 | 54 | 55 | 56 | 57 | 57 | 57 | 58 | 58 | 59 | 59 | 59 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 54 |
| Cloudier (%) | 46 | 46 | 45 | 44 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 41 | 40 | 41 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 45 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 54 | 46 |
| 2 | 54 | 46 |
| 3 | 55 | 45 |
| 4 | 56 | 44 |
| 5 | 57 | 43 |
| 6 | 57 | 43 |
| 7 | 57 | 43 |
| 8 | 58 | 42 |
| 9 | 58 | 42 |
| 10 | 59 | 41 |
| 11 | 59 | 41 |
| 12 | 59 | 41 |
| 13 | 60 | 40 |
| 14 | 59 | 41 |
| 15 | 59 | 41 |
| 16 | 58 | 42 |
| 17 | 58 | 42 |
| 18 | 57 | 43 |
| 19 | 57 | 43 |
| 20 | 56 | 44 |
| 21 | 56 | 44 |
| 22 | 55 | 45 |
| 23 | 55 | 45 |
| 24 | 55 | 45 |
| 25 | 55 | 45 |
| 26 | 54 | 46 |
| 27 | 54 | 46 |
| 28 | 54 | 46 |
| 29 | 54 | 46 |
| 30 | 54 | 46 |
| 31 | 54 | 46 |
Chance of precipitation in July
Yarmouth gets around 2.5 in of rain over 7.7 wet days in July, the driest month. 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 (%) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Rain chance (%) | |
|---|---|
| 1 | 23 |
| 2 | 23 |
| 3 | 23 |
| 4 | 23 |
| 5 | 23 |
| 6 | 23 |
| 7 | 23 |
| 8 | 23 |
| 9 | 23 |
| 10 | 23 |
| 11 | 23 |
| 12 | 23 |
| 13 | 23 |
| 14 | 24 |
| 15 | 24 |
| 16 | 24 |
| 17 | 24 |
| 18 | 25 |
| 19 | 25 |
| 20 | 25 |
| 21 | 26 |
| 22 | 26 |
| 23 | 26 |
| 24 | 27 |
| 25 | 27 |
| 26 | 27 |
| 27 | 27 |
| 28 | 27 |
| 29 | 27 |
| 30 | 27 |
| 31 | 27 |
Humidity in July
Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the muggy band about 38% 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 (%) | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Comfortable (%) | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Humid (%) | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 36 | 35 | 34 | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 31 |
| Muggy (%) | 25 | 26 | 27 | 28 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 46 | 46 | 47 | 46 | 46 | 46 | 45 | 44 | 44 |
| Oppressive (%) | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 5 | 25 | 44 | 25 | 2 |
| 2 | 4 | 24 | 44 | 26 | 2 |
| 3 | 4 | 23 | 44 | 27 | 2 |
| 4 | 4 | 22 | 44 | 28 | 3 |
| 5 | 3 | 21 | 44 | 28 | 3 |
| 6 | 3 | 20 | 44 | 29 | 3 |
| 7 | 3 | 19 | 44 | 30 | 4 |
| 8 | 3 | 19 | 43 | 31 | 4 |
| 9 | 3 | 18 | 42 | 32 | 5 |
| 10 | 2 | 18 | 41 | 33 | 5 |
| 11 | 2 | 17 | 40 | 34 | 6 |
| 12 | 2 | 17 | 39 | 36 | 6 |
| 13 | 2 | 16 | 38 | 37 | 7 |
| 14 | 2 | 16 | 36 | 38 | 7 |
| 15 | 2 | 16 | 35 | 39 | 8 |
| 16 | 2 | 15 | 34 | 40 | 8 |
| 17 | 2 | 15 | 33 | 41 | 8 |
| 18 | 2 | 15 | 32 | 42 | 9 |
| 19 | 2 | 14 | 31 | 43 | 9 |
| 20 | 2 | 14 | 31 | 44 | 10 |
| 21 | 2 | 13 | 30 | 45 | 10 |
| 22 | 2 | 13 | 29 | 46 | 10 |
| 23 | 2 | 13 | 29 | 46 | 11 |
| 24 | 2 | 12 | 29 | 46 | 11 |
| 25 | 2 | 12 | 29 | 47 | 11 |
| 26 | 1 | 12 | 29 | 46 | 11 |
| 27 | 1 | 12 | 29 | 46 | 12 |
| 28 | 1 | 12 | 29 | 46 | 12 |
| 29 | 1 | 12 | 30 | 45 | 12 |
| 30 | 1 | 12 | 30 | 44 | 12 |
| 31 | 1 | 12 | 31 | 44 | 12 |
Wind in July
Winds average 12 mph in July.
Across July, 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) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 |
| 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 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 12 | light breeze |
| 4 | 12 | light breeze |
| 5 | 12 | light breeze |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | light breeze |
| 9 | 12 | light breeze |
| 10 | 12 | light breeze |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | light breeze |
| 27 | 11 | light breeze |
| 28 | 11 | light breeze |
| 29 | 11 | light breeze |
| 30 | 11 | light breeze |
| 31 | 11 | light breeze |
Sunrise & sunset in July
Daylight runs from about 15 hours at the start of July to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over July. Sunrise moves from 4:14 AM to 4:38 AM, and sunset from 7:14 PM to 6:56 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) | 15.0 | 15.0 | 15.0 | 15.0 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.8 | 14.8 | 14.8 | 14.8 | 14.7 | 14.7 | 14.7 | 14.7 | 14.6 | 14.6 | 14.6 | 14.6 | 14.5 | 14.5 | 14.5 | 14.4 | 14.4 | 14.4 | 14.3 | 14.3 |
| Sunrise (AM) | 4:14 | 4:15 | 4:15 | 4:16 | 4:17 | 4:17 | 4:18 | 4:18 | 4:19 | 4:20 | 4:20 | 4:21 | 4:22 | 4:23 | 4:23 | 4:24 | 4:25 | 4:26 | 4:27 | 4:27 | 4:28 | 4:29 | 4:30 | 4:31 | 4:32 | 4:33 | 4:34 | 4:35 | 4:36 | 4:37 | 4:38 |
| Sunset (PM) | 7:14 | 7:14 | 7:14 | 7:14 | 7:13 | 7:13 | 7:13 | 7:13 | 7:12 | 7:12 | 7:12 | 7:11 | 7:11 | 7:10 | 7:10 | 7:09 | 7:08 | 7:08 | 7:07 | 7:06 | 7:06 | 7:05 | 7:04 | 7:03 | 7:02 | 7:01 | 7:00 | 6:59 | 6:58 | 6:57 | 6:56 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 15.0 | 4:14 | 7:14 |
| 2 | 15.0 | 4:15 | 7:14 |
| 3 | 15.0 | 4:15 | 7:14 |
| 4 | 15.0 | 4:16 | 7:14 |
| 5 | 14.9 | 4:17 | 7:13 |
| 6 | 14.9 | 4:17 | 7:13 |
| 7 | 14.9 | 4:18 | 7:13 |
| 8 | 14.9 | 4:18 | 7:13 |
| 9 | 14.9 | 4:19 | 7:12 |
| 10 | 14.9 | 4:20 | 7:12 |
| 11 | 14.9 | 4:20 | 7:12 |
| 12 | 14.8 | 4:21 | 7:11 |
| 13 | 14.8 | 4:22 | 7:11 |
| 14 | 14.8 | 4:23 | 7:10 |
| 15 | 14.8 | 4:23 | 7:10 |
| 16 | 14.7 | 4:24 | 7:09 |
| 17 | 14.7 | 4:25 | 7:08 |
| 18 | 14.7 | 4:26 | 7:08 |
| 19 | 14.7 | 4:27 | 7:07 |
| 20 | 14.6 | 4:27 | 7:06 |
| 21 | 14.6 | 4:28 | 7:06 |
| 22 | 14.6 | 4:29 | 7:05 |
| 23 | 14.6 | 4:30 | 7:04 |
| 24 | 14.5 | 4:31 | 7:03 |
| 25 | 14.5 | 4:32 | 7:02 |
| 26 | 14.5 | 4:33 | 7:01 |
| 27 | 14.4 | 4:34 | 7:00 |
| 28 | 14.4 | 4:35 | 6:59 |
| 29 | 14.4 | 4:36 | 6:58 |
| 30 | 14.3 | 4:37 | 6:57 |
| 31 | 14.3 | 4:38 | 6:56 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 6.41 kWh/m² — the sunniest month for solar.
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 — July's 6.41 kWh/m² sits near the top of that range.
| 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) | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.6 | Intense |
| 3 | 6.6 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.6 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.5 | Intense |
| 11 | 6.5 | Intense |
| 12 | 6.5 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.5 | Intense |
| 15 | 6.5 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.4 | Intense |
| 18 | 6.4 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.0 | Intense |
Hazard calendar for Yarmouth
In July, Yarmouth sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Yarmouth sits in the Atlantic hurricane belt; the season peaks August–October.
Is July a good time to visit Yarmouth?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is one of the better times to visit Yarmouth for general sightseeing.
What to pack for Yarmouth in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Yarmouth sees daytime highs around 71°F and nights near 67°F. Pack sun protection. About 8 days see rain.
Sea temperature near Yarmouth in July
The nearest coast averages about 66°F in July — 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 68°F and coldest in February near 38°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 40 | 38 | 38 | 43 | 50 | 59 | 66 | 68 | 65 | 58 | 51 | 45 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 40 | Bracing |
| Feb | 38 | Bracing |
| Mar | 38 | Bracing |
| Apr | 43 | Bracing |
| May | 50 | Bracing |
| Jun | 59 | Bracing |
| Jul | 66 | Cool |
| Aug | 68 | Refreshing |
| Sep | 65 | Cool |
| Oct | 58 | Bracing |
| Nov | 51 | Bracing |
| Dec | 45 | Bracing |
UV index in Yarmouth in July
Clear-sky midday UV in July 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 Yarmouth 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 Yarmouth?
Yarmouth sits at 41.7°N, 70.2°W, 33 ft above sea level, in United States. The nearest listed city is Barnstable, 3.7 mi away.
Topography around Yarmouth
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Yarmouth.
Within 2 miles, the terrain around Yarmouth has only modest variations in elevation — a maximum elevation change of 151 ft around an average of 46 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 253 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 630 ft.
The land around Yarmouth is covered by trees (60%) within 2 miles, water (61%) and trees (30%) within 10 miles, and water (75%) and trees (21%) 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 Yarmouth (41.7057°, -70.2286°, elevation 33 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).