Portsmouth Weather History Hampshire, United Kingdom

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Wed 03 Sep, 2025 Weather in Portsmouth

Sunrise: 06:21 AM Sunset: 07:45 PM	Moonrise: 06:14 PM Moonset: 12:23 AM	Max: 19.7 °c	Min: 16.8 °c	Avg: 18.2 °c	Precip: 4.40 mm	Max Wind: 56.9 kph

	Wed 03 0:00 am	Wed 03 3:00 am	Wed 03 6:00 am	Wed 03 9:00 am	Wed 03 12:00 pm	Wed 03 3:00 pm	Wed 03 6:00 pm	Wed 03 9:00 pm
Icon
Temp	17.3°c	16.8°c	19.0°c	19.7°c	19.2°c	18.7°c	17.5°c	17.1°c
Wind	34.6 kmph	35.6 kmph	53.3 kmph	54.7 kmph	56.9 kmph	49.3 kmph	43.9 kmph	33.1 kmph
Precip	0.10 mm	0.60 mm	0.10 mm	0.30 mm	0.50 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	100%	88%	71%	80%	73%	84%	72%
Humidity	89%	89%	88%	82%	81%	81%	84%	79%
Pressure	1002 mb	1001 mb	999 mb	999 mb	998 mb	999 mb	1002 mb	1004 mb

Portsmouth Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	8°C / 46°F	4°C / 40°F	6°C / 43°F	119 hours	76.60 mm / 3.02 In	8 days	1016 mb / 30 In
February	8°C / 47°F	5°C / 40°F	6°C / 44°F	95 hours	62.13 mm / 2.45 In	7 days	1016 mb / 30 In
March	10°C / 50°F	5°C / 42°F	8°C / 46°F	140 hours	51.61 mm / 2.03 In	6 days	1015 mb / 30 In
April	12°C / 54°F	7°C / 44°F	10°C / 49°F	169 hours	45.80 mm / 1.80 In	5 days	1016 mb / 30 In
May	15°C / 59°F	9°C / 49°F	12°C / 54°F	162 hours	48.30 mm / 1.90 In	5 days	1017 mb / 31 In
June	18°C / 65°F	12°C / 54°F	15°C / 60°F	170 hours	59.53 mm / 2.34 In	5 days	1017 mb / 30 In
July	20°C / 68°F	14°C / 58°F	17°C / 63°F	172 hours	54.32 mm / 2.14 In	6 days	1016 mb / 30 In
August	20°C / 68°F	15°C / 58°F	17°C / 63°F	178 hours	60.52 mm / 2.38 In	6 days	1016 mb / 30 In
September	18°C / 65°F	13°C / 56°F	16°C / 60°F	168 hours	54.68 mm / 2.15 In	5 days	1017 mb / 31 In
October	15°C / 60°F	11°C / 52°F	13°C / 56°F	128 hours	100.03 mm / 3.94 In	8 days	1014 mb / 30 In
November	12°C / 53°F	8°C / 47°F	10°C / 50°F	113 hours	90.98 mm / 3.58 In	8 days	1012 mb / 30 In
December	9°C / 49°F	6°C / 43°F	8°C / 46°F	109 hours	90.21 mm / 3.55 In	9 days	1014 mb / 30 In

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