All data are in degrees Celsius. Switch to Fahrenheit
Mothecombe, United Kingdom
Mothecombe, United Kingdom | © Kevin Williams

The most detailed information about the water temperature in Portsmouth in English Channel (England, United Kingdom). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Portsmouth for a week.

Water temperature in Portsmouth right now

data updated 12 minutes ago

17.3°C

yesterday: 17.3°C

a week ago: 16.7°C

Trend: slow drop

Today water temperature in Portsmouth is 17.3°C. This is cool bathing water, but acceptable for short dives for physically fit and hardened people. Continuous exposure to such water for more than four hours can lead to severe hypothermia. In any case, the general weather is also important. So, the air temperature at the same time will reach 15°C.

Analysis and forecast

The water temperature today roughly corresponds to the average value on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 17°C. Water temperature range in Portsmouth in August is from 15 to 19 degrees.

According to our forecast, in the coming days, the water temperature value in Portsmouth will slightly drop and in 10 days it will be 16.8°C.

Table of water temperature values in Portsmouth

DayFact*Average**Forecast***
Jul 2617.7°C16.5°C
Jul 2716.9°C16.0°C
Jul 2817.2°C16.5°C
Jul 2916.9°C16.3°C
Jul 3016.9°C15.8°C
Jul 3117.2°C16.5°C
Aug 117.3°C16.3°C
Aug 217.3°C16.8°C
Aug 316.8°C17.3°C
Aug 416.3°C16.8°C
Aug 516.5°C17.0°C
Aug 617.0°C17.5°C
Aug 718.0°C18.5°C
Aug 816.5°C17.0°C
Aug 916.8°C17.3°C
* Fact - Actual value of water temperature
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature

Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.

To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in United Kingdom.

West Lulworth, United Kingdom
West Lulworth, United Kingdom | © Mike Shields

Annual graph of average water temperature change in Portsmouth

Water temperature in Portsmouth by month

Portsmouth located in the northern hemisphere, at latitude 50 degrees. The water in this location never warms up to comfortable values. Average annual water temperature on the coast in Portsmouth is 12.8°C, by the seasons: in winter 9.8°C, in spring 10.0°C, in summer 15.4°C, in autumn 16.0°C. Minimum water temperature (6.8°C) in Portsmouth it happens in January, maximum (18.8°C) in September.

You can find out detailed data on how the water temperature in Portsmouth changes in each specific month:

Portsmouth: general information and map

Original name
Portsmouth
Continent
Region
The local time
14:40
Timezone
UTC+1
Sunrise
05:33
Sunset
20:48
Length of the day
15 hours 15 minutes

Neighboring cities and resorts

CityWater*Distance**
Gosport17.0°C 3km
Cosham17.8°C 4km
Anglesey17.0°C 4km
Lee-on-the-Solent18.0°C 8km
Seaview17.0°C 9km
Hayling Island17.1°C 9km
Fareham17.5°C 9km
Eastoke17.1°C 9km
Ryde17.4°C 9km
Emsworth16.9°C 12km
St Helens17.6°C 12km
Wootton Bridge17.7°C 13km
* Water temperature in this place today
** Straight line distance in kilometers
Sheerness, United Kingdom
Sheerness, United Kingdom | © Ralf Krämer

The warmest water today in United Kingdom recorded in Uphill, its value is 19.1°C. Lowest - in Lerwick, there water temperature now 12.4°C. Average water temperature in the country today - 16.3°C.

Water temperature data in Portsmouth and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.

We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.

The nearest airport is located in a 13 kilometers. This is Bembridge (BBP) airport. We have no information as to whether it is valid and what flights it receives or sends.

Portsmouth: weather forecast

The weather forecast is shown in local time in Portsmouth

TODAY
13:00
15.6°C
15km/h
feels like 14.8°C, Rain (light rain)
humidity: 84%, clouds: 70%
16:00
15.8°C
13km/h
feels like 15.5°C, Rain (light rain)
humidity: 79%, clouds: 100%
19:00
15.4°C
11km/h
feels like 15.1°C, Rain (light rain)
humidity: 81%, clouds: 100%
22:00
14.9°C
6km/h
feels like 14.5°C, Rain (light rain)
humidity: 79%, clouds: 100%
AUGUST 3
01:00
14.7°C
2km/h
feels like 14.3°C, Rain (light rain)
humidity: 79%, clouds: 92%
04:00
14.4°C
2km/h
feels like 14.0°C, Clouds (scattered clouds: 25-50%)
humidity: 79%, clouds: 39%
07:00
14.9°C
5km/h
feels like 14.4°C, Clouds (scattered clouds: 25-50%)
humidity: 77%, clouds: 39%
10:00
16.0°C
10km/h
feels like 15.5°C, Clouds (broken clouds: 51-84%)
humidity: 72%, clouds: 69%
13:00
16.4°C
11km/h
feels like 15.9°C, Clouds (broken clouds: 51-84%)
humidity: 69%, clouds: 82%
16:00
16.3°C
11km/h
feels like 15.8°C, Clouds (overcast clouds: 85-100%)
humidity: 70%, clouds: 100%
19:00
15.7°C
9km/h
feels like 15.3°C, Clouds (overcast clouds: 85-100%)
humidity: 75%, clouds: 99%
22:00
14.9°C
8km/h
feels like 14.5°C, Clouds (overcast clouds: 85-100%)
humidity: 77%, clouds: 100%
AUGUST 4
01:00
14.5°C
2km/h
feels like 13.9°C, Clouds (overcast clouds: 85-100%)
humidity: 74%, clouds: 100%
04:00
14.4°C
2km/h
feels like 13.8°C, Clouds (overcast clouds: 85-100%)
humidity: 75%, clouds: 99%
07:00
14.5°C
1km/h
feels like 14.0°C, Clouds (overcast clouds: 85-100%)
humidity: 77%, clouds: 99%
10:00
15.3°C
2km/h
feels like 14.8°C, Clouds (overcast clouds: 85-100%)
humidity: 74%, clouds: 100%
13:00
15.7°C
8km/h
feels like 15.3°C, Clouds (overcast clouds: 85-100%)
humidity: 74%, clouds: 94%
16:00
16.2°C
11km/h
feels like 15.8°C, Clouds (few clouds: 11-25%)
humidity: 73%, clouds: 17%
19:00
15.7°C
16km/h
feels like 15.2°C, Clouds (few clouds: 11-25%)
humidity: 74%, clouds: 11%
22:00
15.0°C
15km/h
feels like 14.7°C, Clouds (broken clouds: 51-84%)
humidity: 82%, clouds: 66%
AUGUST 5
01:00
15.0°C
14km/h
feels like 14.8°C, Clouds (broken clouds: 51-84%)
humidity: 85%, clouds: 83%
04:00
15.3°C
18km/h
feels like 15.3°C, Clouds (overcast clouds: 85-100%)
humidity: 90%, clouds: 100%
07:00
15.4°C
23km/h
feels like 15.3°C, Clouds (overcast clouds: 85-100%)
humidity: 88%, clouds: 100%
10:00
15.4°C
31km/h
feels like 15.2°C, Clouds (overcast clouds: 85-100%)
humidity: 85%, clouds: 93%
13:00
15.9°C
37km/h
feels like 15.9°C, Rain (light rain)
humidity: 89%, clouds: 97%
16:00
16.9°C
32km/h
feels like 16.9°C, Rain (light rain)
humidity: 85%, clouds: 88%
19:00
16.1°C
30km/h
feels like 16.1°C, Rain (light rain)
humidity: 91%, clouds: 91%
22:00
16.0°C
26km/h
feels like 16.1°C, Rain (light rain)
humidity: 94%, clouds: 84%
AUGUST 6
01:00
16.1°C
25km/h
feels like 16.2°C, Clouds (overcast clouds: 85-100%)
humidity: 95%, clouds: 88%
04:00
15.9°C
31km/h
feels like 15.8°C, Clouds (overcast clouds: 85-100%)
humidity: 88%, clouds: 100%
07:00
14.7°C
28km/h
feels like 14.5°C, Clouds (overcast clouds: 85-100%)
humidity: 87%, clouds: 97%
10:00
16.0°C
28km/h
feels like 15.7°C, Clouds (few clouds: 11-25%)
humidity: 78%, clouds: 11%
13:00
16.2°C
34km/h
feels like 15.9°C, Clear (clear sky)
humidity: 78%, clouds: 7%
16:00
16.2°C
33km/h
feels like 16.0°C, Clouds (scattered clouds: 25-50%)
humidity: 79%, clouds: 33%
19:00
15.8°C
27km/h
feels like 15.5°C, Clouds (scattered clouds: 25-50%)
humidity: 80%, clouds: 36%
22:00
15.2°C
18km/h
feels like 14.9°C, Clouds (broken clouds: 51-84%)
humidity: 79%, clouds: 61%
AUGUST 7
01:00
15.2°C
11km/h
feels like 14.8°C, Clouds (broken clouds: 51-84%)
humidity: 77%, clouds: 74%
04:00
14.7°C
11km/h
feels like 14.4°C, Rain (light rain)
humidity: 83%, clouds: 100%
Bournemouth, United Kingdom
Bournemouth, United Kingdom | © mat cooper

Find out the temperature of sea water in more than 12000 cities and resorts around the world. Water surface temperature values are available in real time. There is a forecast of water temperature changes for the next few days, as well as historical data of sea surface temperature are available for all days of the last years.

We use data from various sources, including National Centers for Environmental Information (NOAA), meteorological services of different countries, data received from more than a thousand buoys around the world, satellite systems for scanning the surface of the oceans and seas.

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