Monthly weather forecast in Portland

30 daysJanFebMarAprMayJunJulAugSepOctNovDec
30 daysJanFebMarAprMayJunJulAugSepOctNovDec
SundayMondayTuesdayWednesdayThursdayFridaySaturday
8 September, Sunday. day, 20°; night, 11°; mostly clear9 September, Monday. day, 22°; night, 12°; mostly clear10 September, Tuesday. day, 22°; night, 11°; clear11 September, Wednesday. day, 23°; night, 13°; mostly clear12 September, Thursday. day, 25°; night, 15°; mostly clear13 September, Friday. day, 27°; night, 17°; light rain14 September, Saturday. day, 27°; night, 17°; mostly clear
15 September, Sunday. day, 22°; night, 15°; light rain16 September, Monday. day, 20°; night, 14°; light rain17 September, Tuesday. day, 21°; night, 14°; partly cloudy18 September, Wednesday. day, 23°; night, 15°; partly cloudy19 September, Thursday. day, 22°; night, 15°; partly cloudy20 September, Friday. day, 22°; night, 18°; partly cloudy21 September, Saturday. day, 17°; night, 15°; partly cloudy
22 September, Sunday. day, 14°; night, 13°; partly cloudy23 September, Monday. day, 15°; night, 13°; partly cloudy24 September, Tuesday. day, 15°; night, 12°; light rain25 September, Wednesday. day, 14°; night, 9°; light rain26 September, Thursday. day, 14°; night, 7°; light rain27 September, Friday. day, 15°; night, 10°; clear28 September, Saturday. day, 16°; night, 9°; clear
29 September, Sunday. day, 15°; night, 12°; partly cloudy30 September, Monday. day, 15°; night, 16°; partly cloudy1 October, Tuesday. day, 17°; night, 12°; rain2 October, Wednesday. day, 15°; night, 12°; clear3 October, Thursday. day, 15°; night, 12°; clear4 October, Friday. day, 16°; night, 11°; clear5 October, Saturday. day, 16°; night, 13°; mostly clear
6 October, Sunday. day, 15°; night, 13°; partly cloudy7 October, Monday. day, 15°; night, 12°; partly cloudyNext, the average data for 10 years8 October, Tuesday. day, 15°; night, 12°; rain9 October, Wednesday. day, 15°; night, 13°; partly cloudy10 October, Thursday. day, 15°; night, 12°; clear11 October, Friday. day, 13°; night, 11°; clear12 October, Saturday. day, 13°; night, 11°; partly cloudy

Average for 30 days

17 sunny days; 2 days with precipitation; 11 cloudy days;
air humidity 70%; 3 millimeters of precipitation (1% of annual average); Wind south-westerly 5.4 Meters per second; Water temperature +18°