Climate and monthly weather forecastHarwich Port, MA
Climate and monthly weather forecast
Weather in January
January, like December, in Harwich Port, Massachusetts, is another cold winter month, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 39°F (3.9°C). January and February represent the coldest period, with an average high-temperature of 39°F (3.9°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Harwich Port, Massachusetts, with temperature in the range of an average low of 32°F (0°C) and an average high of 39°F (3.9°C). The months of January and February see the lowest levels of Harwich Port's temperatures, averaging a high of 39°F (3.9°C). Weather in February »Weather in March
March, the first month of the spring in Harwich Port, is also a wintry month, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 41°F (5°C). The transition from February to March sees an average high-temperature of a still cold 41°F (5°C), indicating a minor variance from the prior month. Weather in March »Weather in April
April in Harwich Port, Massachusetts, is a frosty spring month, with an average temperature fluctuating between 42.4°F (5.8°C) and 46.9°F (8.3°C). The shift from March to April is marked by a slight increase in the average high-temperature, moving from a wintry 41°F (5°C) to a chilly 46.9°F (8.3°C). Weather in April »Weather in May
The last month of the spring, May, is a cool month in Harwich Port, Massachusetts, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 54.3°F (12.4°C). The onset of May brings a minor temperature shift, with the average high-temperature moving from a chilly 46.9°F (8.3°C) in April to a fresh 54.3°F (12.4°C). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Harwich Port, Massachusetts, with an average temperature fluctuating between 63°F (17.2°C) and 58.8°F (14.9°C). A soft shift in the average high-temperature is noticeable in June, transitioning from a cool 54.3°F (12.4°C) in May to a comfortable 63°F (17.2°C). Weather in June »Weather in July
July in Harwich Port, Massachusetts, is an agreeable summer month, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 70.3°F (21.3°C). The embrace of July brings a minor uplift in the average high-temperature, shifting from an enjoyable 63°F (17.2°C) in June to an agreeable 70.3°F (21.3°C). Weather in July »Weather in August
The last month of the summer, August, is another pleasant month in Harwich Port, Massachusetts, with an average temperature varying between 68.2°F (20.1°C) and 71.6°F (22°C). In Harwich Port, August is identified by the highest average temperatures, reaching a peak of 71.6°F (22°C) and a low of 68.2°F (20.1°C). Weather in August »Weather in September
September, the first month of the autumn in Harwich Port, is still a comfortable month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 66.6°F (19.2°C). On the advent of September, Harwich Port's average high-temperature exhibits a minor adjustment to a comfortable 66.6°F (19.2°C) from August's 71.6°F (22°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Harwich Port, Massachusetts, with an average temperature varying between 54.9°F (12.7°C) and 59.5°F (15.3°C). The beginning of October brings a minor change in the average high-temperature, shifting from a comfortable 66.6°F (19.2°C) in September to a still refreshing 59.5°F (15.3°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Harwich Port, Massachusetts, with an average temperature varying between 51.3°F (10.7°C) and 45.5°F (7.5°C). The start of November involves a subtle temperature drop, shifting from a mild 59.5°F (15.3°C) in October to a cool 51.3°F (10.7°C). Weather in November »Weather in December
December, the first month of the winter in Harwich Port, is still a chilly month, with an average temperature fluctuating between 37.6°F (3.1°C) and 44.4°F (6.9°C). December's onset introduces a mild reduction in the average high-temperature, from a cool 51.3°F (10.7°C) in November to a frosty 44.4°F (6.9°C). Weather in December »Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Harwich Port sees its lowest temperatures during January and February, with an average high-temperature of 39°F (3.9°C).
In Harwich Port, during the entire year, the rain falls for 142.4 days and collects up to 22.09" (561mm) of precipitation.
Months with snowfall are January through April, November and December.
Throughout the year, there are 20.8 snowfall days, and 4.37" (111mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 5 days and typically aggregates up to 1.38" (35mm) of snow.
With an average ocean temperature of 39°F (3.9°C), March is the month with the coldest seawater.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Harwich Port, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
May through October are months without snowfall.
The months with the highest humidity are June and July, with an average relative humidity of 85%.
The month with the longest days is June, with an average of 15h and 12min of daylight.
July and August, with an average maximum UV index of 6, are months with the highest UV index.
With average temperatures fluctuating between a high of 71.6°F (22°C) and a low of 68.2°F (20.1°C), August stands out as the warmest month.
August is the month with the warmest seawater, with an average ocean temperature of 67.5°F (19.7°C).
With an average of 10.7h of sunshine, August has the most sunshine of the year.
October is the month with the most rainfall. Rain falls for 13.4 days and accumulates 2.83" (72mm) of precipitation.
November is the least humid month, with an average relative humidity of 74%.
The month with the least rainfall is November, when the rain falls for 11.5 days and typically collects 1.46" (37mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 4.3h of sunshine.
Average temperature
Harwich Port, MA
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure
Harwich Port, MA
- Average pressure in January:
29.99"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.02"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
Harwich Port, MA
- Average wind speed in January:
18mph - Average wind speed in February:
17.5mph - Average wind speed in March:
17.6mph - Average wind speed in April:
15.2mph - Average wind speed in May:
13.2mph - Average wind speed in June:
12.4mph
- Average wind speed in July:
11.6mph - Average wind speed in August:
11.4mph - Average wind speed in September:
13.5mph - Average wind speed in October:
15.5mph - Average wind speed in November:
16.9mph - Average wind speed in December:
17.5mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity
Harwich Port, MA
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall
Harwich Port, MA
- Average rainfall in January:
1.69" - Average rainfall in February:
1.57" - Average rainfall in March:
1.85" - Average rainfall in April:
2.05" - Average rainfall in May:
1.81" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.5" - Average rainfall in September:
1.85" - Average rainfall in October:
2.83" - Average rainfall in November:
1.46" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days
Harwich Port, MA
- Average rainfall days in January:
9.5 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall
Harwich Port, MA
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Harwich Port, MA
- Average snowfall days in January:
6 days - Average snowfall days in February:
5 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Harwich Port, MA
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight / Average sunshine
Harwich Port, MA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h 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 12min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 30min - Average sunshine in March:
5h and 48min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days
Harwich Port, MA
- Average sunshine days in January:
13 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
14.9 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index
Harwich Port, MA
The months with the highest UV index are 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
Harwich Port, MA
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Harwich Port, MA
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).
