Portland, ME weather and climate in 2024
Day
18 °C
Night
7 °C
Sea
8 °C
Precipitation
98 mm
in month
Rainy days
12 days
in month
Daylight
15 hours
average
Sunshine
8 hours
average
Humidity
71 %
Day
18 °C
Night
7 °C
Sea
8 °C
Precipitation
98 mm
in month
Rainy days
12 days
in month
Daylight
15 hours
average
Sunshine
8 hours
average
Humidity
71 %
Overview: Portland, ME
Weather charts for Portland, ME
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Weather overview for Portland, ME
Weather overview
Portland, ME (United States of America) is a place with a mild continental climate. Temperatures during the day are in the range from 1 °C (33 °F) in January to 26 °C (79 °F) in July. The driest month is September with just 9 days of rain, on the contrary, the month when it rains the most is May with 12 days of rain. The highest night temperatures could be experienced in July with 15 °C (59 °F), the lowest in January with -10 °C (14 °F).
January weather
The minimum of the day temperature can be noticed, the value of this measure is 1 °C (33 °F) in Portland, ME, and the minimum of the night temperature can be noticed too in this month. The number of rainy days descent's start could be observed, with its value being 11 days, while the descent of the rainfall amount can be observed, the value of this measure is 85 mm (3.35 in). The number of sun hours (without clouds) rise's start could be observed in this month.
February weather
The descent of the number of rainy days can be observed, the value of this measure is 10 days in Portland, ME. The day temperature rise's start could be observed, its value is 2 °C (36 °F), and the night temperature rise's start could be observed too, with its value being -9 °C (16 °F). The number of sun hours (without clouds) continues to rise, its value is 6 hours. The maximum of the wind speed can be noticed, its value is 5. The humidity reaches its minimum in February.
March weather
The beginning of the rise of the number of rainy days could be noticed, with its value being 11 days in Portland, ME, and the beginning of the rise of the rainfall amount could be noticed too, its value is 99 mm (3.92 in). The rise of the day temperature can be observed, with its value being 6 °C (43 °F), and the rise of the night temperature can be observed as well, its value is -4 °C (25 °F). The rise of the number of sun hours (without clouds) can be observed, its value is 6 hours.
April weather
The rise of the number of rainy days can be observed, with its value of 11 days in Portland, ME, and the rainfall amount continues to rise too, with its value of 108 mm (4.25 in). The night temperature continues to rise, with its value being 2 °C (35 °F), and the rise of the day temperature can be observed as well, the value of this measure is 12 °C (54 °F). The number of sun hours (without clouds) continues to rise, the value of this measure is 7 hours.
May weather
The maximum of the number of rainy days can be noticed in Portland, ME, while the rainfall amount descent's start could be observed. The day temperature rises similarly to the previous month, its value is 18 °C (65 °F), and the night temperature rises similarly to the previous month as well, with its value being 7 °C (45 °F). The number of sun hours (without clouds) continues to rise, with its value of 8 hours.
June weather
The tourist season is at its beginning this month in Portland, ME. The day temperature rises similarly to the previous month, the value of this measure is 23 °C (74 °F), and the night temperature continues to rise too, its value is 12 °C (54 °F). The number of sun hours (without clouds) rises similarly to the previous month, its value is 8 hours. The maximum of the day length can be noticed, the value of this measure is 15 hours.
July weather
The maximum of the day temperature is observable in Portland, ME, and the night temperature is on its maximum too, its value is 15 °C (59 °F). The number of rainy days descent's start could be observed, with its value being 11 days, and the beginning of the descent of the rainfall amount could be noticed too in July. The tourist season is close to its peak. The number of sun hours (without clouds) is on its maximum, the value of this measure is 9 hours.
August weather
The tourist season continues this month in Portland, ME. The rainfall amount reaches its minimum, its value is 82 mm (3.22 in), while the number of rainy days continues to descent, with its value being 10 days. The number of sun hours (without clouds) starts to descent in this month. The night temperature starts to descent, with its value being 15 °C (58 °F).
September weather
The tourist season is taking place this month in Portland, ME. The beginning of the descent of the day temperature could be noticed, with its value of 22 °C (71 °F), while the night temperature descents similarly to the previous month, with its value of 10 °C (50 °F). The beginning of the rise of the rainfall amount could be noticed, with its value of 88 mm (3.46 in), while the minimum of the number of rainy days can be noticed, with its value being 9 days. The maximum of the humidity is observable, the value of this measure is 77 %.
October weather
The day temperature descents similarly to the previous month in Portland, ME, and the night temperature descents similarly to the previous month as well, with its value of 4 °C (39 °F). The rise of the rainfall amount can be observed, its value is 116 mm (4.58 in), while the number of rainy days rise's start could be observed, with its value being 10 days. The descent of the number of sun hours (without clouds) can be observed, with its value of 6 hours.
November weather
The day temperature continues to descent, the value of this measure is 9 °C (48 °F) in Portland, ME, and the night temperature descents similarly to the previous month as well, the value of this measure is -1 °C (31 °F). The rise of the number of rainy days can be observed, with its value of 11 days, while the rainfall amount is on its maximum. The number of sun hours (without clouds) continues to descent, with its value of 4 hours.
December weather
The day temperature continues to descent, with its value being 3 °C (37 °F) in Portland, ME, and the night temperature descents similarly to the previous month as well, its value is -6 °C (21 °F). The number of rainy days continues to rise, with its value of 12 days, while the rainfall amount descent's start could be observed in this month. The day length reaches its minimum. The number of sun hours (without clouds) reaches its minimum, with its value being 4 hours.
FAQs
What is the air temperature in April in Portland, ME at night?
The average night temperature in April in Portland, ME is 2 °C (35 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating. That's 5 °C (42 °F) more than in the previous month.
How many rainy days can I expect in Portland, ME in May?
There are 12 days, which are rainy in Portland, ME in May, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.8 days of the week, or in general - 40 % days.
Is June a good month to visit Portland, ME?
There are good conditions for visiting in Portland, ME in June. There are some people, who may feel a slight chill at 23 °C (74 °F), but others will feel perfectly fine. The temperature of 12 °C (54 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the sea temperature in Portland, ME in July?
In Portland, ME in July expect the sea to be warm at 16 °C (60 °F). This is a sea temperature for resilient people only, most people won't enjoy swimming in such cold water or will have to use a wetsuit for water activities. This value is 3 °C (38 °F) higher than last month.
Is it hot in August in Portland, ME?
In August in Portland, ME, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
Is September part of the wet season in Portland, ME?
No, there is no wet season in Portland, ME in September - you can expect 9 days of rain during the month.
What is the temperature in Portland, ME during the day in October?
In Portland, ME in October, the average daily temperatures will be 15 °C (60 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. This is a decrease of 6 °C (43 °F) compared to the last month. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.