Best time to go to Isle of Portland Average weather of Isle of Portland, England

When is the best time to go to Isle of Portland?

When is the best time to go to Isle of Portland? Here's some information to help you in your decision:

The best months for good weather in Isle of Portland are June, July, August and September
On average, the warmest months are July, August and September
The coldest months are January, February and March
The rainiest months are October, November and December
September is the best month for swimming

Annual weather in Isle of Portland

For full information about the climate and weather in Isle of Portland a specific month, click on the corresponding line below:

Month			Our opinion
January	45°F/49°F	4.3in	bad weather	Isle of Portland in january
February	45°F/49°F	3.6in	bad weather	Isle of Portland in february
March	45°F/50°F	2.6in	bad weather	Isle of Portland in march
April	47°F/54°F	2.6in	bad weather	Isle of Portland in april
May	52°F/58°F	2.6in	tolerable weather	Isle of Portland in may
June	58°F/61°F	3.1in	good weather	Isle of Portland in june
July	61°F/65°F	2.8in	good weather	Isle of Portland in july
August	61°F/67°F	3.6in	good weather	Isle of Portland in august
September	59°F/65°F	2.5in	good weather	Isle of Portland in september
October	56°F/59°F	5.4in	tolerable weather	Isle of Portland in october
November	52°F/54°F	4.8in	bad weather	Isle of Portland in november
December	49°F/52°F	4.5in	bad weather	Isle of Portland in december

Weather and climate in Isle of Portland

Isle of Portland enjoys a temperate oceanic climate (with warm summer) in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Isle of Portland is 58°F (ranging from 49°F in february to 67°F in august). Annual rainfall is 42.2in, with a minimum of 2.5in in september and a maximum of 5.4in in october.

Between january and april the climate is bad. It is for example 54°F as maximum temperature in april and it rains about 14% of the time in april.
In may the climate is okay. At lunchtime, it's 56°F in average and it rains about 2.6in each month.
From june to september the climate is beautiful. The record temperature this month is 74°F and it rains in september about 2.5in.
Between october and november the climate is not good, but still OK. The record temperature this month is 63°F and it rains in november about 4.8in.
In the month of december the climate is unfavorable. It is for example 52°F as maximum temperature in december and it rains about 25% of the time in december.

Charts: temperature and rainfall in Isle of Portland

In the charts below, you can see the following seasonal norms for the city of Isle of Portland: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature

Humidity

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