UTC Offset
UTC-04:00
Riverhead, United States Snapshot 2026
Where is Riverhead?
Riverhead, United States
- Continent
- Americas
- Country
- United States
- City
- Riverhead
- Population
- 13.3K
- Elevation
- 4 m
- Coordinates
- 40.92°, -72.66°
Riverhead is a city in United States with a population of approximately 13.3K. Average temperatures range from 0°C (31°F) in January to 27°C (81°F) in July. The best time to visit is June, July, August, September.
Time in Riverhead right now
Open full time & time zone page 13:45 45
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 Riverhead
Daylight in Riverhead today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 06m
Climate normals for Riverhead
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
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / 0°C | 0°C / -6°C | 10days (99 mm) Wet | 6.1h Fair | 69% Muggy | 2.3 Moderate | Poor | View Details |
| February | 6°C / 0°C | 2°C / -6°C | 10days (96 mm) Wet | 6.8h Fair | 71% Muggy | 3.4 Moderate | Poor | View Details |
| March | 9°C / 2°C | 5°C / -3°C | 10days (106 mm) Wet | 8.4h Good | 69% Muggy | 4.6 Moderate | Poor | View Details |
| April | 13°C / 7°C | 11°C / 3°C | 12days (106 mm) Wet | 9.1h Good | 72% Muggy | 5.5 High | Fair | View Details |
| May | 18°C / 12°C | 18°C / 9°C | 11days (101 mm) Wet | 9.9h Good | 77% Humid | 6.4 High | Good | View Details |
| June best | 24°C / 18°C | 25°C / 17°C | 8days (66 mm) Wet | 11.4h Excellent | 77% Humid | 7.2 Very High | Excellent | View Details |
| July best | 27°C / 22°C | 31°C / 24°C | 9days (95 mm) Wet | 11.8h Excellent | 78% Humid | 7.4 Very High | Excellent | View Details |
| August best | 26°C / 22°C | 29°C / 23°C | 10days (83 mm) Wet | 10.9h Excellent | 77% Humid | 6.6 High | Excellent | View Details |
| September best | 23°C / 18°C | 24°C / 18°C | 9days (97 mm) Wet | 8.9h Good | 76% Humid | 5.2 High | Excellent | View Details |
| October | 18°C / 13°C | 17°C / 11°C | 10days (121 mm) Wet | 7.6h Good | 75% Muggy | 4.1 Moderate | Good | View Details |
| November | 12°C / 7°C | 9°C / 2°C | 8days (85 mm) Wet | 6.9h Fair | 69% Muggy | 2.9 Moderate | Fair | View Details |
| December | 7°C / 2°C | 3°C / -3°C | 11days (132 mm) Wet | 5.7h Fair | 71% Muggy | 2.1 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 5°C / 0°C . Feb: 6°C / 0°C . Mar: 9°C / 2°C . Apr: 13°C / 7°C . May: 18°C / 12°C . Jun: 24°C / 18°C . Jul: 27°C / 22°C . Aug: 26°C / 22°C . Sep: 23°C / 18°C . Oct: 18°C / 13°C . Nov: 12°C / 7°C . Dec: 7°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 99 mm. Feb: 96 mm. Mar: 106 mm. Apr: 106 mm. May: 101 mm. Jun: 66 mm. Jul: 95 mm. Aug: 83 mm. Sep: 97 mm. Oct: 121 mm. Nov: 85 mm. Dec: 132 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 69%. Feb: 71%. Mar: 69%. Apr: 72%. May: 77%. Jun: 77%. Jul: 78%. Aug: 77%. Sep: 76%. Oct: 75%. Nov: 69%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 28 km/h . Feb: 27 km/h . Mar: 28 km/h . Apr: 26 km/h . May: 23 km/h . Jun: 21 km/h . Jul: 20 km/h . Aug: 20 km/h . Sep: 22 km/h . Oct: 26 km/h . Nov: 28 km/h . Dec: 28 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 6°C . Feb: 5°C . Mar: 6°C . Apr: 9°C . May: 14°C . Jun: 18°C . Jul: 23°C . Aug: 23°C . Sep: 22°C . Oct: 18°C . Nov: 13°C . Dec: 8°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 6. 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
Riverhead has a population of approximately 13.3K.
The best months to visit Riverhead are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Riverhead receives approximately 1187mm of rainfall annually across 118 rainy days.
Riverhead is located in United States, in the Americas region.
Riverhead sits at an elevation of 4 m (13 ft) above sea level.