Climate and monthly weather forecastNiantic, CT
Climate and monthly weather forecast
The climate of Niantic
Niantic, Connecticut, USA, is characterized by a Marine west coast, warm summer climate, commonly referred to as a Cfb climate according to the Köppen climate classification. Located on the East Coast of the United States, Niantic experiences a significant amount of rainfall throughout the year.On a monthly average, temperatures range from a high of approximately 36.1°F (2.3°C) to 78.6°F (25.9°C) and a low between 26.2°F (-3.2°C) to 66.7°F (19.3°C), revealing a diversity in temperature fluctuations. High humidity, tallying between 74 to 80%, is a constant factor, leading to a fairly moist atmosphere. Moreover, Niantic receives considerable precipitation all year, with monthly rainfall figures oscillating from 1.65in to 3.86in and precipitation events noted for as many as 14.9 days in particular months.
Interestingly, the town experiences occurrences of snowfall mainly between late winter to early spring, with snowfall accumulations swinging from 0.08in to 2.56in. Niantic also presents a fluctuating sunlight exposure from as low as 9.2 daylight hours in winter to a peak of 15.1 hours during summer months. An impressive amount of sunshine brightness, between 4.9 to 10.6 hours per day, contributes to conditions favoring outdoor activities.
The best time to visit Niantic
The best period to visit Niantic is arguably during the warm summer months, specifically from June to August. Temperatures are most favorable at this time, ranging from 63.3°F (17.4°C) to 78.6°F (25.9°C), providing opportune moments for outdoor activities. Coupled with relative humidity levels hovering around 78 to 80% and the prolonged sunshine hours of 14.5 to 15.1, the conditions are perfect for a beach holiday.The worst time to visit Niantic
Visiting Niantic during the first quarter of the year, particularly between January and March, could pose a challenge. It is during this season that the town experiences the brunt of its cold weather, with temperatures dropping as low as 26.2°F (-3.2°C) to 43.3°F (6.3°C). Moreover, this period also features the highest occurrences of snowfall, coinciding with reduced daylight hours and increased rainfall.Spring weather in Niantic
In Niantic, spring, observed from March to May, experiences a temperature range between 43.3°F (6.3°C) to 63.3°F (17.4°C). This period also witnesses increased rainfall levels, hitting a peak of 3.11in in April. Additionally, incidents of snowfall are possible in early spring, with March recording an average snowfall of 2.56in. However, daylight hours progressively increase, providing up to 14.5 hours by May, creating a welcoming atmosphere for outdoor ventures.Summer weather in Niantic
June ushers in the summer season in Niantic, offering relief from the residual chills of spring. Running until August, summer months operate with high temperatures, from 71.4°F (21.9°C) to 78.6°F (25.9°C). Humidity levels invariably rise, floating between 79 to 80%. Leveraging these warm conditions, the sea temperature ranges from 69.5°F (20.8°C) to 72.1°F (22.3°C), bolstering beach activities. Moreover, the daylight duration extends up to 15.1 hours, improving visibility.Autumn weather in Niantic
Autumn arrives in Niantic during September and lasts until November. The period is characterized by gradually falling temperatures, transitioning from 72°F (22.2°C) to a chillier 50.9°F (10.5°C). Expected rainfall levels range from 1.65in to 3.39in, scattered over 12 to 14.5 days of the month. However, the declining temperatures do not deter seaside attractions as the sea temperature sustains between 62.8°F (17.1°C) to 68.2°F (20.1°C) while daylight hours slightly diminish, offering 9.9 to 12.5 hours.Winter weather in Niantic
Winter in Niantic, observed from December to February, significantly shifts the climate profile of the town. Temperatures plummet, ranging from 26.2°F (-3.2°C) to 37.9°F (3.3°C), alongside snowfall which records up to 1.85in in February. These cold conditions facilitate a drop in sea temperature to a low of 38.8°F (3.8°C) in February, marking a noticeable decline from warmer months. Correspondingly, daylight hours shrink, providing only 9.2 to 10.6 hours, which affects visibility but creates an ambiance marked by the crisp winter air and the beauty of a snowy landscape.Weather in January
Niantic, Connecticut experiences chilly weather in January, dominated by cold, crisp winds. Cloud coverage is common, contributing to a noticeable reduction in daylight hours. It isn't unusual to witness snowfall at this time, painting the landscape a gleaming white. Weather in January »Weather in February
In February, Niantic sees only a slight rise in temperatures from January, but remains cold. Snow could still be a common sight this month. The wind speed subsides slightly but persistent breezes continue to make the weather feel even colder. Weather in February »Weather in March
March in Niantic, Connecticut, signifies the advent of spring. Compared to the snow-peppered landscape in February, the town welcomes a noticeable increase in temperature. Visual clarity improves as the elements calm down, and the days start to seem longer. Weather in March »Weather in April
April continues the warming trend started in March, with decisive strides towards milder days. The weather begins to improve substantially, accompanied by increased daylight hours. The snow gives way to light, pleasant showers, setting the stage for blooming flowers. Weather in April »Weather in May
Weather in May in Niantic becomes friendlier, with radiant sunshine and mild winds. A considerable increase in humidity levels signals the oncoming summer. It is a time of growth and greenery, thanks to the regular showers, making it quite an invigorating period in the town. Weather in May »Weather in June
Come June, the weather of Niantic noticeably transforms into bonafide summer. The warmth envelops the town, allowing outdoor activities to flourish. The sunny days, combined with the highest sea temperature at 62°F (16.7°C), make for perfect beach weather. Weather in June »Weather in July
July in Niantic is characterized by the peak of summer, with the most prolonged daylight duration. Afternoon thunderstorms become a prevailing feature of weather, albeit the precipitation levels are not the highest this month. Beachgoers thrive during this period, thanks to the warm coastal waters. Weather in July »Weather in August
As August arrives, the summer heat in Niantic persists, although there's a slight dip from July's temperatures. August could be distinguished by long, languid days under the sun, interspersed by sudden afternoon showers. Furthermore, the humidity remains high, contributing to the sultry nature of the season. Weather in August »Weather in September
September in Niantic signals the advent of autumn. A gradual decline in temperatures from August marks the beginning of the fall season. While the daylight hours start to decrease, September offers the perfect mix of sunny and cool weather. Weather in September »Weather in October
October carries forward the fall season in Niantic, with a marked drop in temperatures from September. The smell of wet earth is common as precipitation ramps up, adding to the noticeable chill in the air. The cool winds of the month transform the landscape into a riot of russets, oranges, and yellows. Weather in October »Weather in November
As November hits Niantic, the weather undergoes a considerable shift. The crisp air becomes noticeably colder, and the daylight hours shrink. The winds continue their cooling trend, and rainfalls keep the days wet and gray. November hits a high wind speed of 11.1mph (17.9km/h), making the colder days feel even chillier. Weather in November »Weather in December
December, serving a fitting climax to the year, brings back winter to Niantic, Connecticut. The rainfalls intensify, and the temperature dips as if beckoning snowfall. It does snow, albeit sporadically, marking the end of the year. Weather in December »Updated: Jul 6, 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
The coldest temperatures occur during January, when averages reach a peak of 36.1°F (2.3°C) and a low of 26.2°F (-3.2°C).
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.
Throughout the year, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
In Niantic, during the entire year, snow falls for 24 days and aggregates up to 7.68" (195mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
With an average ocean temperature of 38.8°F (3.8°C), February is the month with the coldest seawater.
February and December, with an average of 4.9h of sunshine, are months with the least sunshine.
March is the month with the most snowfall. Snow falls for 5.1 days and accumulates 2.56" (65mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
In Niantic, snow does not fall in May through October.
The most humid month is June, with an average relative humidity of 80%.
With an average of 15h and 6min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Niantic's July weather reaches an average high of 78.6°F (25.9°C) and an average low of 66.7°F (19.3°C), making it the warmest month.
August is the month with the warmest seawater, with an average ocean temperature of 72.1°F (22.3°C).
August has the most sunshine of the year, with an average of 10.6h of sunshine.
September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 13.4 days and typically aggregates up to 3.86" (98mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Niantic, CT
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure
Niantic, CT
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"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:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Niantic, CT
- Average wind speed in January:
11.9mph - Average wind speed in February:
11.5mph - Average wind speed in March:
11.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.4mph - Average wind speed in November:
11.1mph - Average wind speed in December:
11.5mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity
Niantic, CT
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall
Niantic, CT
- Average rainfall in January:
2.64" - Average rainfall in February:
2.48" - Average rainfall in March:
2.95" - Average rainfall in April:
3.11" - Average rainfall in May:
2.52" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.36" - Average rainfall in September:
1.65" - Average rainfall in October:
3.39" - Average rainfall in November:
2.95" - Average rainfall in December:
3.86"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days
Niantic, CT
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall
Niantic, CT
The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Niantic, CT
- Average snowfall days in January:
5.9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.1 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:
4.8 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature
Niantic, CT
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight / Average sunshine
Niantic, CT
- 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 30min - Average daylight in June:
15h and 6min
- 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 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 36min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days
Niantic, CT
- Average sunshine days in January:
15.1 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).
Average UV index
Niantic, CT
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
Niantic, CT
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Niantic, CT
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).
