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Portsmouth
Water Temperature in the English Channel in Portsmouth, England: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Portsmouth in England, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Portsmouth
12.1°C
TODAY
11.0°C
YESTERDAY
10.1°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the English Channel in Portsmouth is 12.1°C. The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for English Channel in Portsmouth Over the Last 30 Days
The water temperature in Portsmouth today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Portsmouth will remain nearly unchanged in the coming days, its value will be 11.3°C.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United Kingdom to enhance accuracy.
Water temperature data for Portsmouth and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 29 | 10.1°C | 10.3°C | |
| Apr 30 | 10.1°C | 10.3°C | |
| May 1 | 10.4°C | 10.3°C | |
| May 2 | 11.0°C | 10.0°C | |
| May 3 | 11.2°C | 10.8°C | |
| May 4 | 11.3°C | 10.5°C | |
| May 5 | 11.0°C | 11.0°C | |
| May 6 | 11.2°C | 10.5°C | |
| May 7 | 10.5°C | 11.8°C | |
| May 8 | 11.3°C | 11.7°C | |
| May 9 | 10.5°C | 11.5°C | |
| May 10 | 10.5°C | 11.3°C | |
| May 11 | 10.8°C | 11.2°C | |
| May 12 | 11.5°C | 11.2°C | |
| May 13 | 11.0°C | 11.2°C | |
| May 14 | 11.8°C | 11.3°C |
Sea Temperature in Portsmouth Throughout the Year
Throughout the year, the sea temperature in Portsmouth exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 0 days, and exceeds 64°F (18°C) for 8 days.
Below is the annual chart of sea temperature changes in the English Channel in Portsmouth.
January
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8.5°C | 11°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8.5°C | 11°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8°C | 10°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 10°C | 12°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 9°C | 12°C | 15°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 11°C | 14°C | 17°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 16.5°C | 19°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 18°C | 21°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 18°C | 21°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 16.5°C | 19°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 14.5°C | 17°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 11°C | 14°C |
Monthly Water Temperature Histogram for English Channel in Portsmouth
You can explore detailed data on how the water temperature in Portsmouth varies each month:
What Beaches Are There In and Around Portsmouth?
Old Portsmouth Beach
Old Portsmouth Beach is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. Old Portsmouth Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Southsea Beach
Southsea Beach is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. Southsea Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Eastney Beach
Eastney Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Portsmouth. For those who prefer clothing-optional beaches, Eastney Beach is a designated nudist beach. There is parking. There are restrooms. There are cafés. Eastney Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Eastney Noturist Beach
Eastney Noturist Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Portsmouth.
Stokes Bay Beach
Stokes Bay Beach is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. Stokes Bay Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
West Beach
West Beach is a 5-stars sandy beach, located in a 6 km (4 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. West Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Langstone Harbour
Langstone Harbour is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Portsmouth. There is parking. There are cafés.
Hayling Island Beach
Hayling Island Beach is a 5-stars sandy beach, located in a 7 km (4 miles) radius of Portsmouth. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There is parking. There are restrooms. There are cafés. Hayling Island Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Browndown Point Beach
Browndown Point Beach is a 4-stars sandy beach, located in a 7 km (4 miles) radius of Portsmouth. For those who prefer clothing-optional beaches, Browndown Point Beach is a designated nudist beach. There is parking. There are restrooms. There are cafés. Browndown Point Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Budds Wall
Budds Wall is a 2-stars sandy beach, located in a 8 km (5 miles) radius of Portsmouth. There is parking.
Lee-On-Solent Beach
Lee-On-Solent Beach is a 5-stars sandy beach, located in a 8 km (5 miles) radius of Portsmouth. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Lee-On-Solent Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Hayling Island - West Of Eastoke Beach
Hayling Island - West Of Eastoke Beach is a 5-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There is parking. There are restrooms. There are cafés. Hayling Island - West Of Eastoke Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Seagrove Beach
Seagrove Beach is a 4-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Seaview Beach
Seaview Beach is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. There is parking.
Spring Vale Beach
Spring Vale Beach is a 4-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Ryde - East Beach
Ryde - East Beach is a 5-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Ryde - East Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Ryde - West Beach
Ryde - West Beach is a 3-stars sandy beach, located in a 9 km (6 miles) radius of Portsmouth. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Hill Head Beach
Hill Head Beach is a 4-stars sandy beach, located in a 10 km (6 miles) radius of Portsmouth. There is parking. There are restrooms. There are cafés. Hill Head Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Portsmouth Weather
MAY 7
8°C / 13°C
overcast clouds: 85-100%humidity: 75% | wind: 5 km/h
MAY 8
9°C / 13°C
few clouds: 11-25%humidity: 73% | wind: 8 km/h
MAY 9
10°C / 14°C
clear skyhumidity: 78% | wind: 8 km/h
Sea Temperature in the English Channel in Portsmouth: General Trends and Swimming Opportunities
The coastal regions of England, United Kingdom generally experience a temperate maritime climate, characterized by relatively mild, damp weather conditions with wet winters and cooler summers compared to inland areas. Significantly, these regions benefit from fewer temperature extremes due to the moderating influence of the nearby sea.
Portsmouth is located in Europe in the Northern Hemisphere at a latitude of 51 degrees, along the shores of the English Channel. Portsmouth lies within the England in United Kingdom.
The average annual daytime air temperature in Portsmouth is 14°C (57°F), with the average nighttime temperature being 7°C (45°F). The highest average daily temperature occurs in July, reaching 22°C (71°F), while the lowest is in January at 8°C (46°F). As for nighttime temperatures, the minimum average temperature of 2°C (36°F) is recorded in February, and the maximum is in July, reaching 13°C (56°F).
According to historical data, Portsmouth experiences 132 rainy days per year, which accounts for 36 percent of all days in the year. On average, there are 11 rainy days each month. The wettest month is November, with 13 rainy days and 93 mm (3.7 inches) of precipitation, while the driest month is July, which typically has 10 rainy days and only 45 mm (1.8 inches) of precipitation.
The average annual water temperature in English Channel in Portsmouth is 13°C (55°F). In January, the water reaches its lowest point of the year at 6°C (43°F), while in August, it peaks at 21°C (70°F). In Portsmouth, the water temperature in the English Channel never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Portsmouth
Nearby Cities
Frequently Asked Questions About Portsmouth and its Water Temperatures
What is the current sea temperature in Portsmouth?
The water temperature today in the English Channel in Portsmouth is 54°F (12.1°C).
In which months is the water temperature in Portsmouth comfortable for swimming?
It cannot be guaranteed that the water temperature in Portsmouth will be comfortable for swimming in any month of the year.
What is the water temperature in Portsmouth during the winter?
The water temperature in the English Channel in Portsmouth during the winter ranges from 6°C to 14°C (43°F to 57°F).
What is the water temperature in Portsmouth during the spring?
The water temperature in the English Channel in Portsmouth during the spring ranges from 6°C to 15°C (43°F to 59°F).
What is the water temperature in Portsmouth during the summer?
The water temperature in the English Channel in Portsmouth during the summer ranges from 11°C to 21°C (52°F to 70°F).
What is the water temperature in Portsmouth during the fall?
The water temperature in the English Channel in Portsmouth during the fall ranges from 12°C to 21°C (54°F to 70°F).
Is it possible to swim in the sea in Portsmouth at any time of the year?
The English Channel in Portsmouth is quite cool, and swimming is only possible in August, and September when the water temperature reaches 21°C (70°F).
Is Portsmouth a popular tourist destination for beach vacations?
Portsmouth a fairly popular beach destination, offering good conditions for swimming and relaxation, with a steady flow of tourists, especially during peak seasons.
What sea temperatures can I expect in Portsmouth in the next month?
In June, the water temperature in the English Channel in Portsmouth will range between 52°F (11°C) and 63°F (17°C)