Portland Weather History Maine, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Tue 11 Aug, 2026 Weather in Portland

Sunrise: 05:41 AM Sunset: 07:51 PM	Moonrise: 03:32 AM Moonset: 07:17 PM	Max: 29.2 °c	Min: 18.6 °c	Avg: 23.3 °c	Precip: 5.60 mm	Max Wind: 19.4 kph

	Tue 11 0:00 am	Tue 11 3:00 am	Tue 11 6:00 am	Tue 11 9:00 am	Tue 11 12:00 pm	Tue 11 3:00 pm	Tue 11 6:00 pm	Tue 11 9:00 pm
Icon
Temp	19.6°c	19.2°c	18.6°c	22.5°c	25.9°c	29.1°c	27.4°c	22.9°c
Wind	6.0 kmph	4.0 kmph	10.4 kmph	14.8 kmph	11.9 kmph	16.9 kmph	18.0 kmph	13.0 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	3%	3%	0%	0%	14%	4%	0%	0%
Humidity	92%	90%	80%	67%	61%	44%	37%	47%
Pressure	1010 mb	1008 mb	1008 mb	1008 mb	1007 mb	1006 mb	1006 mb	1008 mb

Portland Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	0°C / 32°F	-6°C / 21°F	-3°C / 27°F	181 hours	96.73 mm / 3.81 In	7 days	1015 mb / 30 In
February	1°C / 33°F	-6°C / 22°F	-2°C / 28°F	149 hours	96.24 mm / 3.79 In	7 days	1015 mb / 30 In
March	4°C / 40°F	-2°C / 29°F	1°C / 34°F	151 hours	119.33 mm / 4.70 In	7 days	1016 mb / 30 In
April	9°C / 49°F	4°C / 38°F	6°C / 44°F	151 hours	124.91 mm / 4.92 In	7 days	1015 mb / 30 In
May	15°C / 59°F	9°C / 48°F	12°C / 53°F	166 hours	97.42 mm / 3.84 In	7 days	1016 mb / 30 In
June	19°C / 67°F	13°C / 56°F	16°C / 62°F	174 hours	110.04 mm / 4.33 In	8 days	1013 mb / 30 In
July	23°C / 74°F	17°C / 63°F	20°C / 68°F	209 hours	104.41 mm / 4.11 In	7 days	1014 mb / 30 In
August	23°C / 73°F	17°C / 62°F	20°C / 68°F	233 hours	93.48 mm / 3.68 In	7 days	1015 mb / 30 In
September	20°C / 67°F	14°C / 57°F	17°C / 62°F	220 hours	85.45 mm / 3.36 In	5 days	1018 mb / 31 In
October	14°C / 57°F	9°C / 48°F	11°C / 52°F	181 hours	125.37 mm / 4.94 In	7 days	1017 mb / 30 In
November	8°C / 47°F	3°C / 37°F	6°C / 42°F	198 hours	101.38 mm / 3.99 In	6 days	1017 mb / 31 In
December	3°C / 38°F	-2°C / 29°F	1°C / 33°F	167 hours	145.25 mm / 5.72 In	8 days	1017 mb / 30 In

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