Newark weather in September 2025

The temperatures in Newark in September are comfortable with low of 18°C and and high up to 24°C.

You can expect about 3 to 8 days of rain in Newark during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Newark in September 2025.

If you’re planning to visit Newark in the near future, we highly recommend that you review the 14 day weather forecast for Newark before you arrive.

Temperatures

24° / 18°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

10.4

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 26° /18°	2 26° /17°	3 28° /19°	4 30° /20°	5 26° /19°	6 26° /20°
7 26° /18°	8 28° /18°	9 27° /19°	10 27° /19°	11 27° /19°	12 27° /18°	13 26° /19°
14 26° /18°	15 26° /17°	16 25° /17°	17 25° /17°	18 24° /17°	19 26° /16°	20 24° /15°
21 25° /16°	22 24° /17°	23 24° /16°	24 22° /16°	25 23° /16°	26 23° /17°	27 24° /16°
28 23° /16°	29 20° /16°	30 20° /14°

Explore the weather in Newark in other months

Newark annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	3° / -2°	6	18	7	50 mm	Awful	Newark in January
February	4° / -1°	5	16	7	64 mm	Awful	Newark in February
March	8° / 3°	5	22	4	70 mm	Bad	Newark in March
April	14° / 8°	5	25	0	63 mm	Good	Newark in April
May	19° / 13°	6	25	0	90 mm	Good	Newark in May
June	24° / 18°	5	25	0	103 mm	Perfect	Newark in June
July	28° / 22°	7	24	0	134 mm	Good	Newark in July
August	27° / 22°	5	26	0	122 mm	Perfect	Newark in August
September	24° / 18°	4	26	0	83 mm	Perfect	Newark in September
October	18° / 13°	5	26	0	79 mm	Good	Newark in October
November	12° / 7°	4	25	1	50 mm	Ok	Newark in November
December	7° / 2°	5	21	5	78 mm	Bad	Newark in December