Caernarfon September Weather Averages Gwynedd, United Kingdom

September Weather Averages for Caernarfon

High Temp	16°C	61°F
Low Temp	11°C	52°F
Avg Temp	14°C	57°F
Sunshine Hours	104 hours
Rainfall	97.61 mm	3.84 In
Rain days	9 days
Pressure	1015 mb	30 In

Caernarfon September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	15°C / 59°F	11°C / 52°F	13°C / 56°F	105 hours	110.78 mm / 4.36 In	10 days	1016 mb / 30 In
2009	15°C / 60°F	11°C / 52°F	13°C / 56°F	150 hours	38.58 mm / 1.52 In	6 days	1022 mb / 31 In
2010	16°C / 60°F	12°C / 53°F	14°C / 57°F	96 hours	136.12 mm / 5.36 In	14 days	1014 mb / 30 In
2011	16°C / 61°F	12°C / 54°F	14°C / 57°F	97 hours	105.25 mm / 4.14 In	10 days	1010 mb / 30 In
2012	15°C / 59°F	11°C / 51°F	13°C / 55°F	92 hours	136.64 mm / 5.38 In	8 days	1014 mb / 30 In
2013	16°C / 60°F	11°C / 52°F	13°C / 56°F	95 hours	61.27 mm / 2.41 In	11 days	1015 mb / 30 In
2014	17°C / 63°F	12°C / 53°F	15°C / 58°F	166 hours	8.07 mm / 0.32 In	0 days	1019 mb / 31 In
2015	15°C / 60°F	10°C / 51°F	13°C / 55°F	109 hours	47.94 mm / 1.89 In	5 days	1017 mb / 31 In
2016	17°C / 63°F	13°C / 55°F	15°C / 59°F	73 hours	96.63 mm / 3.80 In	9 days	1015 mb / 30 In
2017	15°C / 59°F	12°C / 53°F	13°C / 56°F	71 hours	127.92 mm / 5.04 In	16 days	1011 mb / 30 In
2018	15°C / 58°F	11°C / 52°F	13°C / 55°F	93 hours	123.84 mm / 4.88 In	9 days	1019 mb / 31 In
2019	15°C / 60°F	11°C / 53°F	14°C / 56°F	121 hours	109.58 mm / 4.31 In	12 days	1016 mb / 30 In
2020	16°C / 60°F	10°C / 50°F	13°C / 55°F	117 hours	63.98 mm / 2.52 In	6 days	1017 mb / 30 In
2021	18°C / 64°F	12°C / 53°F	15°C / 58°F	138 hours	103.25 mm / 4.06 In	6 days	1018 mb / 31 In
2022	17°C / 62°F	11°C / 52°F	14°C / 57°F	41 hours	155.03 mm / 6.10 In	11 days	1013 mb / 30 In
2023	18°C / 64°F	12°C / 54°F	15°C / 59°F	120 hours	143.58 mm / 5.65 In	7 days	1013 mb / 30 In
2024	16°C / 60°F	10°C / 50°F	13°C / 55°F	92 hours	104.10 mm / 4.10 In	7 days	1015 mb / 30 In

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