You can expect rain for roughly half of the month of September in Fiss. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Fiss is going to experience quite a number of days of snow during September. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!

Our weather forecast can give you a great sense of what weather to expect in Fiss in September 2026.

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

Temperatures

12° / 2°

Rainy Days

Snowy Days

Dry Days

Rainfall

125

Sun Hours

10.3

Hrs

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

Explore the weather in Fiss in other months

Fiss annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	-4° / -13°	6	6	21	82 mm	Awful	Fiss in January
February	-3° / -13°	6	5	20	68 mm	Awful	Fiss in February
March	-1° / -10°	7	4	22	78 mm	Awful	Fiss in March
April	3° / -5°	8	4	21	87 mm	Awful	Fiss in April
May	8° / -1°	14	2	21	153 mm	Awful	Fiss in May
June	13° / 4°	17	6	9	194 mm	Awful	Fiss in June
July	16° / 5°	17	11	4	174 mm	Bad	Fiss in July
August	16° / 6°	15	13	4	201 mm	Bad	Fiss in August
September	12° / 2°	11	11	8	125 mm	Awful	Fiss in September
October	7° / -2°	7	9	15	104 mm	Awful	Fiss in October
November	1° / -6°	5	8	18	86 mm	Awful	Fiss in November
December	-3° / -12°	5	7	20	86 mm	Awful	Fiss in December