Cosham

Portsmouth, England, United Kingdom

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Current Weather

19°

Mostly Cloudy

Feels Like: 19°

Min: 12°

Max: 20°

The next few hours will be mostly clear, with today reaching 19°C and dropping to 14°C. The coming days will be breezy

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

19° 19° 20° 19° 19° 18° 16° 15° 14° 14° 14° 14° 14° 14° 14° 15° 16° 16° 17° 17° 17° 17° 18° 19°
90%
90%
58%
58%
58%
2pm
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4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
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1pm
Today
Tomorrow

Daylight Hours

06:49

Sunrise

19:07

Sunset

12 hours 17 minutes of sunlight today

Moon

Waxing Crescent

13:18

Moonrise

20:49

Moonset

Daily Forecast

Today

12°
20°

Thursday

13°
19°

Friday

10°
18°

Saturday

17°
20°

Sunday

13°
19°

Monday

10°
17°

Tuesday

13°
17°

Wednesday

15°
17°

Thursday

17°
18°

Friday

16°
18°

Air Quality Data Available

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UV Index

Wear sunscreen
4 Moderate
Low Extreme

Humidity

54% Comfortable
Low High

Weather in Cosham today, September 16, 2026

Expect a muted, overcast feel in Cosham on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief.

The day peaks near 20°C and cools toward 12°C. Relative humidity sits between 51% and 78%, reaching its peak around 23:00. Airflow remains manageable, reaching about 4.6 km/h around 14:00.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 19:00. Outdoor plans may still want a flexible backup. Expect visibility near 38.9 km, with poorer spells close to 33.2 km. The sun rises at 06:49 and sets at 19:07, for a total of 12 hours 17 minutes of sunlight today.

The practical takeaway for Cosham on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 20°C.

Frequently asked questions about weather in Cosham

How warm does it get in Cosham?

The warmest month in Cosham is August, with average high temperatures of 20°C. The average temperature during this period is around 18°C.

How cold does it get in Cosham?

The coldest month in Cosham is January, with average low temperatures of 5°C. The average temperature during this period is around 7°C.

What is the wettest time of year in Cosham?

The wettest month in Cosham is October, with an average of 106mm of precipitation.

What is the driest time of year in Cosham?

The driest month in Cosham is April, with an average of 43mm of precipitation.

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Metric (°C, km/h)