Live Weather & Forecast
Weather in South Yarmouth
Massachusetts, United States · Real-time conditions & 3-day outlook
4°C
Feels like 0°C
39°F / Feels 33°F
Clear
South Yarmouth, Massachusetts
🌞 Daytime
Updated: 2026-04-12 06:15
Humidity
67%
Wind
15.8 km/h NNW
Wind Gust
23.1 km/h
Pressure
1030 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-2.2°C
Wind Degree
337°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
172.9 μg/m³
NO₂
4.7 μg/m³
O₃
92 μg/m³
SO₂
2.3 μg/m³
PM 2.5
7.8 μg/m³
PM 10
9.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for South Yarmouth, Massachusetts
12 AM
5°
Clear
1 AM
4°
Clear
2 AM
4°
Clear
3 AM
3°
Clear
4 AM
3°
Clear
5 AM
2°
Clear
6 AM
4°
Clear
7 AM
4°
Sunny
8 AM
6°
Sunny
9 AM
7°
Sunny
10 AM
9°
Sunny
11 AM
11°
Sunny
12 PM
11°
Sunny
1 PM
12°
Sunny
2 PM
12°
Sunny
3 PM
12°
Sunny
4 PM
12°
Sunny
5 PM
10°
Sunny
6 PM
9°
Overcast
7 PM
8°
Overcast
8 PM
7°
Overcast
9 PM
7°
Overcast
10 PM
7°
Partly Cloudy
11 PM
6°
Overcast
3-Day Forecast
Daily overview for South Yarmouth, Massachusetts
Today
Sunny
13°
/
2°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 24.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:06 AM
🌇 Sunset: 07:19 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
10°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 45.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:04 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
16°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 24.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:02 AM
🌇 Sunset: 07:21 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit South Yarmouth
Plan your trip to South Yarmouth, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in South Yarmouth?
Current conditions in South Yarmouth: Clear, temperature 4°C, humidity 67%.
What is the best time to visit South Yarmouth?
The best time to visit South Yarmouth is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in South Yarmouth?
South Yarmouth is located at approximately 41.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in South Yarmouth?
The wettest period in South Yarmouth is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to South Yarmouth?
For visits to South Yarmouth during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is South Yarmouth in?
South Yarmouth is located in United States, in the state of Massachusetts.
What are the public holidays in South Yarmouth in 2026?
View the 2026 public holidays for South Yarmouth on our Holidays page.
What are the GPS coordinates used for the weather forecast in South Yarmouth?
The weather forecast for South Yarmouth uses coordinates 41.6668, -70.1847.