September weather forecast
Dublin, NH

Share

Weather in September

September, the first month of the autumn in Dublin, is still a pleasant month, with an average temperature fluctuating between 69.8°F (21°C) and 50.5°F (10.3°C).

Temperature

The advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 76.8°F (24.9°C) in August to an agreeable 69.8°F (21°C). The month of September records an average low-temperature of 50.5°F (10.3°C) in Dublin, New Hampshire.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Dublin, in September, during 12.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 141.7 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

In Dublin, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:13 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:30 pm EDT.

Sunshine

The average sunshine in September is 7.9h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature, in September, in Dublin, is 69.8°F (21°C), while the low-temperature averages to 50.5°F (10.3°C).

What is the average humidity in September?

In Dublin, the average relative humidity in September is 79%.

How many days does it rain in September?

In Dublin, in September, during 12.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

In Dublin, snow does not fall in June through September.

Does it snow in September?

In Dublin, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length is 12h and 29min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:13 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:30 pm EDT.

How many hours of sunshine does Dublin have in September?

In Dublin, the average sunshine duration in September is 7.9h.

How high is the UV index in September?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dublin, NH

Average temperature in September - Dublin, NH
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in September: 50.5°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in September
Dublin, NH

Average pressure in September - Dublin, NH
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Dublin, NH

Average wind speed in September - Dublin, NH
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in September
Dublin, NH

Average humidity in September - Dublin, NH
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Dublin, NH

Average rainfall in September - Dublin, NH
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is August (2.28").

Average rainfall days in September
Dublin, NH

Average rainfall days in September - Dublin, NH
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (6 days).

Average snowfall in September
Dublin, NH

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

The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Dublin, NH

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

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Dublin, NH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in September
Dublin, NH

Average sunshine days in September - Dublin, NH
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is March (12 days).

Average UV index in September
Dublin, NH

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in September
Dublin, NH

Average cloud cover in September - Dublin, NH
  • Average cloud cover in September: 42

The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in September
Dublin, NH

Average visibility in September - Dublin, NH
  • Average visibility in September: 5mi

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

Dublin, New Hampshire, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location