Portsmouth
United Kingdom
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Portsmouth, United Kingdom

The first month of the summer, June, is still a comfortable month in Portsmouth, United Kingdom, with average temperature varying between 12.1°C (53.8°F) and 19.2°C (66.6°F).

Temperature

In June, the average high-temperature is practically the same as in May - a still enjoyable 19.2°C (66.6°F). In June, the average low-temperature is 12.1°C (53.8°F).

Rainfall

June is the month with the least rainfall in Portsmouth. Rain falls for 7.4 days and accumulates 42mm (1.7") of precipitation.

Sea temperature

In Portsmouth, the average water temperature is 13.6°C (56.5°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

With an average of 16.4h of daylight, June has the longest days of the year in Portsmouth, United Kingdom.

Sunshine

In June, the average sunshine in Portsmouth is 8.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in June in Portsmouth?

The average high-temperature, in June, is 19.2°C (66.6°F), while the average low-temperature is 12.1°C (53.8°F).

How many days does it rain in June in Portsmouth?

In Portsmouth, United Kingdom, during June, the rain falls for 7.4 days and regularly aggregates up to 42mm (1.7") of precipitation.

What is the driest month in Portsmouth?

June is the month with the least rainfall in Portsmouth, United Kingdom. Rain falls for 7.4 days and accumulates 42mm (1.7") of precipitation.

What is the water temperature in June in Portsmouth?

In Portsmouth, in June, the average water temperature is 13.6°C (56.5°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

When are the longest days in Portsmouth?

The month with the longest days in Portsmouth, United Kingdom, is June, with an average of 16.4h of daylight.

How many hours of daylight does Portsmouth have in June?

In June, the average length of the day in Portsmouth, United Kingdom, is 16.4h.

How long on average sun shines in June in Portsmouth?

In Portsmouth, the average sunshine in June is 8.3h.

What is the month with the highest UV index in Portsmouth?

Months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Portsmouth?

The average daily maximum UV index in June in Portsmouth, United Kingdom, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in June - Portsmouth, United Kingdom
  • Average high temperature in June: 19.2°C

Warmest months (with the highest average high temperature) are July and August (21.4°C).
Months with the lowest average high temperature are January and February (8.2°C).

  • Average low temperature in June: 12.1°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).

Average rainfall in June - Portsmouth, United Kingdom
  • Average rainfall in June: 42mm

The wettest month (with the highest rainfall) is October (86.2mm).
The driest month (with the lowest rainfall) is June (42mm).

Average rainfall days in June - Portsmouth, United Kingdom
  • Average rainfall days in June: 7.4 days

Months with the highest number of rainy days are January and December (11.2 days).
The month with the lowest number of rainy days is July (5.4 days).

Average sea temperature in June - Portsmouth, United Kingdom
  • Average sea temperature in June: 13.6°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).

Average daylight in June / Average sunshine in June - Portsmouth, United Kingdom
  • Average daylight in June: 16.4h

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in June: 8.3h

The month with most sunshine is July (Average sunshine: 8.4h).
The month with least sunshine is December (Average sunshine: 2h).

Average UV index in June - Portsmouth, United Kingdom
  • Average UV index in June: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).