May weather forecast
Brunswick, ME

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The calm Androscoggin River in Brunswick, Maine, with a rail bridge on it and scenic brown and golden trees on both sides mirrored in the water
The calm Androscoggin River in Brunswick, Maine, with a rail bridge on it and scenic brown and golden trees on both sides mirrored in the water

Weather in May

In May, the weather in Brunswick, Maine transforms further under the influence of spring. The progression of the season brings amplified temperatures, further extended daylight, and amplified UV index levels. The distinctively noticeable rise in humidity marks the step towards the summer months. The touch of late spring brings a mild and moderately wet climate to the city compared to the damp conditions of June.

Temperature

May shows a rise in the average high-temperature, moving from April's chilly 48.9°F (9.4°C) to a moderate 58.8°F (14.9°C). An average low-temperature of 46°F (7.8°C) is noted during the nights in May.

Humidity

The average relative humidity in May is 80%.

Rainfall

In Brunswick, during May, the rain falls for 12.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 115.5 rainfall days, and 15.51" (394mm) of precipitation is accumulated.

Snowfall

In Brunswick, snow does not fall in May through September.

Daylight

In May, the average length of the day in Brunswick is 14h and 46min.
On the first day of May, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:15 pm EDT.

Sunshine

The average sunshine in May in Brunswick is 8.2h.

UV index

In Brunswick, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Brunswick, records 58.8°F (14.9°C), while the low-temperature is 46°F (7.8°C).

What is the average humidity in May?

In Brunswick, the average relative humidity in May is 80%.

How many days does it rain in May?

In Brunswick, during May, the rain falls for 12.6 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow?

In Brunswick, snow does not fall in May through September.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Brunswick have in May?

In Brunswick, Maine, the average day length in May is 14h and 46min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:15 pm EDT.

How long on average sun shines in May?

In Brunswick, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes 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 May
Brunswick, ME

Average temperature in May - Brunswick, ME
  • Average high temperature in May: 58.8°F

The warmest months (with the highest average high temperature) are July and August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Brunswick, ME

Average pressure in May - Brunswick, ME
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is September (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Brunswick, ME

Average wind speed in May - Brunswick, ME
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in May
Brunswick, ME

Average humidity in May - Brunswick, ME
  • Average humidity in May: 80%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (75%).

Average rainfall in May
Brunswick, ME

Average rainfall in May - Brunswick, ME
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is October (1.85").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in May
Brunswick, ME

Average rainfall days in May - Brunswick, ME
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in May
Brunswick, ME

Average snowfall in May - Brunswick, ME
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Brunswick, ME

Average snowfall days in May - Brunswick, ME
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Brunswick, ME

Average daylight in May / Average sunshine in May - Brunswick, ME
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in May
Brunswick, ME

Average sunshine days in May - Brunswick, ME
  • Average sunshine days in May: 16.8 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (15 days).

Average UV index in May
Brunswick, ME

Average UV index in May - Brunswick, ME
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Brunswick, ME

Average cloud cover in May - Brunswick, ME
  • Average cloud cover in May: 46

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 May
Brunswick, ME

Average visibility in May - Brunswick, ME
  • Average visibility in May: 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).

Brunswick, Maine, USA

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