UTC Offset
UTC-04:00
Dorchester, United States Snapshot 2026
Where is Dorchester?
Dorchester, United States
- Continent
- Americas
- Country
- United States
- City
- Dorchester
- Population
- 97.8K
- Elevation
- 36 m
- Coordinates
- 42.30°, -71.07°
Dorchester is a city in United States with a population of approximately 97.8K. Average temperatures range from -4°C (25°F) in January to 28°C (82°F) in July. The best time to visit is June, July, August, September, October.
Time in Dorchester right now
Open full time & time zone page 15:32 32
Monday, June 15, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Dorchester
Daylight in Dorchester today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 15m
Climate normals for Dorchester
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / -4°C | -2°C / -9°C | 10days (103 mm) Wet | 5.9h Fair | 68% Muggy | 2.3 Moderate | Poor | View Details |
| February | 5°C / -3°C | 0°C / -9°C | 10days (90 mm) Wet | 6.6h Fair | 70% Muggy | 3.3 Moderate | Poor | View Details |
| March | 8°C / 0°C | 4°C / -5°C | 11days (108 mm) Wet | 7.8h Good | 67% Muggy | 4.3 Moderate | Poor | View Details |
| April | 13°C / 5°C | 11°C / 1°C | 11days (109 mm) Wet | 8.4h Good | 70% Muggy | 5.2 High | Fair | View Details |
| May | 19°C / 10°C | 18°C / 8°C | 11days (86 mm) Wet | 9.7h Good | 73% Muggy | 6.3 High | Good | View Details |
| June best | 24°C / 16°C | 25°C / 15°C | 10days (71 mm) Wet | 11h Excellent | 73% Muggy | 6.8 High | Excellent | View Details |
| July best | 28°C / 20°C | 30°C / 21°C | 10days (94 mm) Wet | 11.1h Excellent | 75% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 29°C / 20°C | 10days (70 mm) Wet | 10.7h Excellent | 74% Muggy | 6.5 High | Excellent | View Details |
| September best | 23°C / 16°C | 23°C / 15°C | 9days (91 mm) Wet | 8.5h Good | 77% Humid | 5.1 High | Excellent | View Details |
| October best | 17°C / 10°C | 15°C / 8°C | 9days (113 mm) Wet | 7h Good | 76% Humid | 3.8 Moderate | Good | View Details |
| November | 11°C / 3°C | 7°C / -1°C | 9days (78 mm) Wet | 6.5h Fair | 71% Muggy | 2.6 Moderate | Poor | View Details |
| December | 5°C / -2°C | 1°C / -7°C | 11days (121 mm) Wet | 5.5h Fair | 71% Muggy | 1.9 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 3°C / -4°C . Feb: 5°C / -3°C . Mar: 8°C / 0°C . Apr: 13°C / 5°C . May: 19°C / 10°C . Jun: 24°C / 16°C . Jul: 28°C / 20°C . Aug: 27°C / 19°C . Sep: 23°C / 16°C . Oct: 17°C / 10°C . Nov: 11°C / 3°C . Dec: 5°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 103 mm. Feb: 90 mm. Mar: 108 mm. Apr: 109 mm. May: 86 mm. Jun: 71 mm. Jul: 94 mm. Aug: 70 mm. Sep: 91 mm. Oct: 113 mm. Nov: 78 mm. Dec: 121 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 68%. Feb: 70%. Mar: 67%. Apr: 70%. May: 73%. Jun: 73%. Jul: 75%. Aug: 74%. Sep: 77%. Oct: 76%. Nov: 71%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 24 km/h . Feb: 23 km/h . Mar: 24 km/h . Apr: 22 km/h . May: 20 km/h . Jun: 18 km/h . Jul: 17 km/h . Aug: 17 km/h . Sep: 18 km/h . Oct: 21 km/h . Nov: 23 km/h . Dec: 23 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 4°C . Feb: 3°C . Mar: 5°C . Apr: 8°C . May: 13°C . Jun: 17°C . Jul: 19°C . Aug: 20°C . Sep: 19°C . Oct: 15°C . Nov: 10°C . Dec: 6°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Dorchester has a population of approximately 97.8K.
The best months to visit Dorchester are June, July, August, September, October, when temperatures are pleasant and rainfall is lower.
Dorchester receives approximately 1134mm of rainfall annually across 121 rainy days.
Dorchester is located in United States, in the Americas region.
Dorchester sits at an elevation of 36 m (118 ft) above sea level.