UV Index Today

Real-time solar radiation monitoring

Boston, Massachusetts, United States
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Boston

Massachusetts, United States • Local time: 23:27

Live UV Index
23:00
0.0
Low
Peak 7.0 at 14:00

Temp

23.3°C
Partly Cloudy

Status

Partly Cloudy

Max

31.5°C

Next 3 Hours

0.0
00:00
0.0
01:00
0.0
02:00

Humidity

79%

Cloud

69%

Wind Spd

8.8km/h

"Low risk. Minimal protection needed."

Today's UV Forecast

Hourly prediction for Boston · Peak 7.0 at 14:00

—
00
—
01
—
02
—
03
—
04
—
05
—
06
0.4
07
1.4
08
2.7
09
4.3
10
5.8
11
6.7
12
6.8
13
7.0
14
6.4
15
5.5
16
3.9
17
2.3
18
1.1
19
0.2
20
—
21
—
22
—
23

Sunburn Time & SPF

Estimate burn time for your skin type at UV 0.0 in Boston.

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Location Map

42.3652, -71.0618 · Elev. 19 m · America/New_York

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Live UV Index in Boston

This page shows the live UV index for Boston, Massachusetts, United States. Use the current reading, today's peak estimate, and the all-day hourly forecast to plan outdoor time and sun protection in Boston.

UV intensity can change quickly around midday. Check the peak time and hourly bars for Boston before long outdoor activities, and increase protection when the index moves into High or above.

Planning Outdoor Time in Boston

Pair the live UV index with temperature, cloud cover, and wind to judge comfort and exposure risk. Even on cooler or breezy days, high UV can still cause skin damage.

Want nearby comparisons? Browse all cities in Massachusetts.