September weather forecast and climate
Berlin, NH

A large and long river with roads and houses along its edges in Berlin, New Hampshire
A large and long river with roads and houses along its edges in Berlin, New Hampshire

Weather in September

September, the first month of the autumn, in Berlin, is also an enjoyable month, with average temperature fluctuating between 46.2°F (7.9°C) and 66.6°F (19.2°C).

Temperature

In Berlin, New Hampshire, the average high-temperature slightly decreases, from a moderately hot 73.9°F (23.3°C) in August, to a comfortable 66.6°F (19.2°C). The average low-temperature, in September, is 46.2°F (7.9°C).

Humidity

In September, the average relative humidity in Berlin is 80%.

Rainfall

September is the month with the least rainfall in Berlin. Rain falls for 12.1 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

In Berlin, New Hampshire, snow does not fall in June through September.

Daylight

In Berlin, the average length of the day is 12.5h.

Sunshine

The average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index in Berlin is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Berlin?

The average high-temperature, in September, in Berlin, New Hampshire, is 66.6°F (19.2°C), while the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in September in Berlin?

In Berlin, the average relative humidity in September is 80%.

How much does it rain in Berlin in September?

In Berlin, New Hampshire, in September, during 12.1 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the driest month in Berlin?

The month with the least rainfall in Berlin, New Hampshire, is September when the rain falls for 12.1 days and typically collects 1.85" (47mm) of precipitation.

Does it snow in Berlin in September?

In Berlin, New Hampshire, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Berlin?

June through September are months without snowfall.

How many hours of daylight does Berlin have in September?

The average length of the day in September in Berlin, New Hampshire, is 12.5h.

How long on average sun shines in September in Berlin?

In Berlin, the average sunshine in September is 8.3h.

What is the UV index reading in September in Berlin?

In Berlin, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Berlin, NH

Average temperature in September - Berlin, NH
  • Average high temperature in September: 66.6°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in September: 46.2°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in September
Berlin, NH

Average pressure in September - Berlin, NH
  • Average pressure in September: 30.05"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Berlin, NH

Average wind speed in September - Berlin, NH
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in September
Berlin, NH

Average humidity in September - Berlin, NH
  • Average humidity in September: 80%

Months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in September
Berlin, NH

Average rainfall in September - Berlin, NH
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is October (3.43").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in September
Berlin, NH

Average rainfall days in September - Berlin, NH
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in September
Berlin, NH

Average snowfall in September - Berlin, NH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (12.8").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Berlin, NH

Average snowfall days in September - Berlin, NH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (19.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Berlin, NH

Average daylight in September / Average sunshine in September - Berlin, NH
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in September: 8.3h

The month with the most sunshine is August (Average sunshine: 9.8h).
The month with the least sunshine is February (Average sunshine: 3.6h).

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Average sunshine days in September
Berlin, NH

Average sunshine days in September - Berlin, NH
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.9 days).

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Average UV index in September
Berlin, NH

Average UV index in September - Berlin, NH
  • Average UV index in September: 3

Months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in September
Berlin, NH

Average cloud cover in September - Berlin, NH
  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 40).

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Average visibility in September
Berlin, NH

Average visibility in September - Berlin, NH
  • Average visibility in September: 4mi

Months with the highest visibility are May, June, July and November (5mi).
Months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).

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