Bar Harbor weather by month

Check out Bar Harbor weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Bar Harbor (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	28	30	41	52	64	73	79	77	68	59	46	34
Min temperature (night-time)	9	10	23	34	43	52	57	57	48	39	30	16
Heat & Humidity	0	0	0	0	0	0	L	L	0	0	0	0
Sea temperature	41	37	37	39	43	48	54	55	54	52	48	45

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Bar Harbor

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	4	5	5	6	7	8	8	7	6	5	4	3
Daily hours of daylight	9	10	12	14	15	15	15	14	12	11	10	9
UV Index (Maximum)	1	2	3	5	6	8	8	7	5	3	2	1

Rainfall in Bar Harbor

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	12	10	12	12	12	12	11	11	10	11	13	14
Average monthly rainfall (inches)	4.6	3.9	4.2	4.3	4.2	3.5	3.3	2.9	4.4	4.5	6.0	5.6

More about Bar Harbor

Bar Harbor by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Maine (Bar Harbor) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Bar Harbor?

Bar Harbor has a cold climate with warm summers and some rainfall in all months.

Bar Harbor weather in January

Expect daytime maximum temperatures of 28°F in Bar Harbor, Maine in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 4.6 inches of rainfall in the month, which might fall as snow.

28
28°F max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
9
9°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
4.6
4.6 inches of monthly rainfall
1
1 (Low) UV index
41
41°F sea temperature

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Bar Harbor weather in February

Expect daytime maximum temperatures of 30°F in Bar Harbor, Maine in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 3.9 inches of rainfall in the month, which might fall as snow.

30
30°F max day temperature
5
5 hours of sunshine per day
10
10 days with some rainfall
10
10°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
3.9
3.9 inches of monthly rainfall
2
2 (Low) UV index
37
37°F sea temperature

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Bar Harbor weather in March

Expect daytime maximum temperatures of 41°F in Bar Harbor, Maine in March based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 4.2 inches of rainfall in the month, which might fall as snow.

41
41°F max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
23
23°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
4.2
4.2 inches of monthly rainfall
3
3 (Moderate) UV index
37
37°F sea temperature

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Bar Harbor weather in April

Expect daytime maximum temperatures of 52°F in Bar Harbor, Maine in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 4.3 inches of rainfall in the month.

52
52°F max day temperature
6
6 hours of sunshine per day
12
12 days with some rainfall
34
34°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
4.3
4.3 inches of monthly rainfall
5
5 (Moderate) UV index
39
39°F sea temperature

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Bar Harbor weather in May

Expect daytime maximum temperatures of 64°F in Bar Harbor, Maine in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 4.2 inches of rainfall in the month.

64
64°F max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
43
43°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
4.2
4.2 inches of monthly rainfall
6
6 (High) UV index
43
43°F sea temperature

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Bar Harbor weather in June

Expect daytime maximum temperatures of 73°F in Bar Harbor, Maine in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 3.5 inches of rainfall in the month.

73
73°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
52
52°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
3.5
3.5 inches of monthly rainfall
8
8 (Very High) UV index
48
48°F sea temperature

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Bar Harbor weather in July

Expect daytime maximum temperatures of 79°F in Bar Harbor, Maine in July based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.3 inches of rainfall in the month.

79
79°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
57
57°F min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
3.3
3.3 inches of monthly rainfall
8
8 (Very High) UV index
54
54°F sea temperature

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Bar Harbor weather in August

Expect daytime maximum temperatures of 77°F in Bar Harbor, Maine in August based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 2.9 inches of rainfall in the month.

77
77°F max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
57
57°F min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
2.9
2.9 inches of monthly rainfall
7
7 (High) UV index
55
55°F sea temperature

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Bar Harbor weather in September

Expect daytime maximum temperatures of 68°F in Bar Harbor, Maine in September based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 4.4 inches of rainfall in the month.

68
68°F max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
48
48°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
4.4
4.4 inches of monthly rainfall
5
5 (Moderate) UV index
54
54°F sea temperature

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Bar Harbor weather in October

Expect daytime maximum temperatures of 59°F in Bar Harbor, Maine in October based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 4.5 inches of rainfall in the month.

59
59°F max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
39
39°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
4.5
4.5 inches of monthly rainfall
3
3 (Moderate) UV index
52
52°F sea temperature

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Bar Harbor weather in November

Expect daytime maximum temperatures of 46°F in Bar Harbor, Maine in November based on long-term weather averages. There are 4 hours of sunshine per day on average with 13 days with some rainfall and typically 6.0 inches of rainfall in the month.

46
46°F max day temperature
4
4 hours of sunshine per day
13
13 days with some rainfall
30
30°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
6.0
6.0 inches of monthly rainfall
2
2 (Low) UV index
48
48°F sea temperature

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Bar Harbor weather in December

Expect daytime maximum temperatures of 34°F in Bar Harbor, Maine in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 5.6 inches of rainfall in the month, which might fall as snow.