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Stykkishólmur September Weather

Averages and records for weather in Stykkishólmur, Iceland in the month of September.

Typical Stykkishólmur September Weather 1991–2020
Average daily high	10.7 °C
Average daily low	6.1 °C
Average monthly precipitation	7.4 cm
Daily chance of precipitation	63.8%

Stykkishólmur September Weather Records 1949–2024
Highest temperature	18.5 °C	September 4, 2010
Lowest temperature	-4.9 °C	September 19, 2000
Highest daily low	14.3 °C	September 4, 2010
Lowest daily high	1.0 °C	September 25, 1954
Hottest average high temperature	12.9 °C	2010
Coldest average high temperature	7.1 °C	1954
Most daily precipitation	6.8 cm	September 17, 2008
Most monthly precipitation	20.4 cm	2008

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
September 1	12.2	7.4	17.0	2.2
September 2	12.1	7.3	18.0	2.4
September 3	12.0	7.2	18.4	2.1
September 4	11.9	7.2	18.5	1.1
September 5	11.8	7.1	17.9	0.0
September 6	11.7	7.0	15.5	1.0
September 7	11.6	6.9	17.0	1.3
September 8	11.5	6.8	16.8	1.3
September 9	11.4	6.7	15.4	0.2
September 10	11.3	6.6	16.4	-2.6
September 11	11.2	6.5	16.3	0.8
September 12	11.1	6.4	15.3	-1.0
September 13	11.0	6.3	16.1	0.0
September 14	10.9	6.2	17.4	-0.2
September 15	10.8	6.1	15.5	0.2
September 16	10.7	5.9	14.6	0.5
September 17	10.6	5.8	15.3	-1.4
September 18	10.4	5.7	15.6	-0.9
September 19	10.3	5.6	14.1	-4.9
September 20	10.1	5.4	15.3	-2.0
September 21	10.0	5.3	14.5	-0.3
September 22	9.9	5.2	16.1	-1.0
September 23	9.8	5.0	14.8	-1.2
September 24	9.6	4.9	14.7	-1.8
September 25	9.5	4.8	14.8	-3.2
September 26	9.4	4.7	15.7	-1.0
September 27	9.3	4.6	14.0	-1.6
September 28	9.2	4.5	13.5	-1.3
September 29	9.1	4.4	13.5	-2.7
September 30	9.0	4.3	13.0	-2.8

Weather Station Details

Years	Station	Coordinates
1949–2024	Stykkisholmur	location