UV Index in Tyngsboro, Massachusetts, United States

· America/New York

3.2
Moderate · clear-sky maximum Tuesday, October 20, 2026

At solar noon (12:30:32 PM) the sun reaches 36.8° above the horizon in Tyngsboro. Without clouds, that corresponds to a maximum UV index of about 3.2 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.

☀️ Sun Safety: When the UV index is high, protect yourself with sunscreen, shade, and a hat. Values of 6 or more indicate increased sunburn risk!

UV index in Tyngsboro, next 14 days

DateSun at noonClear-sky maxForecast max
36.8° 3.2 Moderate —
36.5° 3.1 Moderate —
36.1° 3.1 Moderate —
35.8° 3.0 Moderate —
35.4° 2.9 Low —
35.1° 2.9 Low —
34.7° 2.8 Low —
34.4° 2.8 Low —
34.1° 2.7 Low —
33.7° 2.6 Low —
33.4° 2.6 Low —
33.1° 2.5 Low —
32.8° 2.5 Low —
32.5° 2.4 Low —

Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.

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The UV index in Tyngsboro measures the intensity of ultraviolet radiation reaching the ground. Values below 3 are considered low risk, while 6 and above require sun protection such as sunscreen, sunglasses, and shade. The clear-sky value shows how strong the sun can get on each day; the forecast shows what is expected with clouds. See today's sunrise and sunset times for Tyngsboro or discover the best light for photos during the golden hour in Tyngsboro.