Temperatures in June
It's warm in June in Portsmouth with an average temperature of 24°C. Temperatures this month range from a low of 19°C to a high of 28°C. At night, you can expect temperatures between 10°C and 18°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Portsmouth in June. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of June
The month of June starts in Portsmouth with warm temperatures, averaging around 23°C during the day and nights close to 13°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-June
By mid-June, the average daytime temperature rises to around 25°C, with nights close to 15°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of June
By the end of June, the average daytime temperature in Portsmouth will be around 27°C, with nights close to 16°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in June
In June, there is an average of 147 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 28% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in June for Portsmouth. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Portsmouth in June |
London | ||
|---|---|---|---|
 Average Temperature |
24°C | 22°C | |
 High Temp |
28°C | 24°C | |
| Low Temp |
19°C | 18°C | |
 Total Precipitation |
147 mm | 57 mm | |
| Rainy Days |
8 days | 10 days | |
May
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is June a good time to visit Portsmouth?
After some sun? Then June isn’t the best time to be in Portsmouth. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Portsmouth in June
With 36°C, Portsmouth hit the highest temperature in the last 10 years in June 2021. The lowest daytime temperature in this month was 9°C in 2015. The extreme night temperatures ranged from a low of 3°C to a high of 26°C.
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Daily Temperature in June in Portsmouth
This chart shows the average daily temperatures, both day and night, for each day in June in Portsmouth, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in June in Portsmouth
The chart below shows the average daily precipitation in June for Portsmouth, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for June, you can expect around 8 days of rain in Portsmouth.
Daily UV Index in June in Portsmouth
This chart shows the average daily UV index in June in Portsmouth, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in June in Portsmouth Over the Years
This chart shows the average temperature in June in Portsmouth, measured in degrees Celsius, over the past years.
Total Precipitation in June in Portsmouth Over the Years
This chart shows the average precipitation in June in Portsmouth, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in June for Portsmouth
Click on a specific day in June for detailed info on the typical weather on that day in Portsmouth. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in June in Portsmouth
Have you been to Portsmouth in June?
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Average Weather in Portsmouth by Month
Click on a month below to see detailed weather info for Portsmouth. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Portsmouth for all months at once
