June weather forecastWinthrop, MA
June
Weather in June
June, the first month of the summer in Winthrop, is a warm month, with an average temperature varying between 57.6°F (14.2°C) and 74.3°F (23.5°C).Temperature
In Winthrop, the average high-temperature in June slightly increases from an enjoyable 66.4°F (19.1°C) in May to a warm 74.3°F (23.5°C). Winthrop, during June, witnesses an average low-temperature of 57.6°F (14.2°C).Humidity
In Winthrop, the average relative humidity in June is 74%.Rainfall
In Winthrop, in June, during 13.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Winthrop, during the entire year, the rain falls for 141.4 days and collects up to 27.2" (691mm) of precipitation.Snowfall
June through September are months without snowfall.Ocean temperature
In Winthrop, the average seawater temperature in June is 58.3°F (14.6°C).Note: Swimming in 58.3°F (14.6°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
The month with the longest days in Winthrop is June, with an average of 15h and 12min of daylight.On the first day of June, sunrise is at 5:09 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:24 pm EDT.
Sunshine
In June, the average sunshine in Winthrop is 9.1h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during June, leads to the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Winthrop, MA
- Average high temperature in June: 74.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in June: 57.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in June
Winthrop, MA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Winthrop, MA
- Average wind speed in June: 6.8mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in June
Winthrop, MA
- Average humidity in June: 74%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).
Average rainfall in June
Winthrop, MA
- Average rainfall in June: 2.13"
The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in June
Winthrop, MA
- Average rainfall days in June: 13.6 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in June
Winthrop, MA
- Average snowfall in June: 0"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Winthrop, MA
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in June
Winthrop, MA
- Average sea temperature in June: 58.2°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in June /
Average sunshine in June
Winthrop, MA
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in June: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in June
Winthrop, MA
- Average sunshine days in June: 14.8 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (13 days).
Average UV index in June
Winthrop, MA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in June
Winthrop, MA
- Average cloud cover in June: 41
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in June
Winthrop, MA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





