Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average sea temperature in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
With the advent of June, Portstewart's high-temperatures adjust to a moderate 14.9°C (58.8°F), closely aligning with the preceding month. Portstewart observes a minimal variance in temperature, with a consistent average low of 10°C (50°F) during the nights of June.Humidity
The average relative humidity in June is 84%.Rainfall
In Portstewart, United Kingdom, in June, during 20.6 rainfall days, 60mm (2.36") of precipitation is typically accumulated. In Portstewart, during the entire year, the rain falls for 238.3 days and collects up to 632mm (24.88") of precipitation.Snowfall
In Portstewart, snow does not fall in May through October.Sea temperature
In June, the average sea temperature in Portstewart is 11.8°C (53.2°F).Note: With an efficient thermal swimsuit, one can navigate 11.8°C (53.2°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C (55.4°F) feels chilly.
Daylight
The month with the longest days in Portstewart, United Kingdom, is June, with an average of 17h and 18min of daylight.On the first day of June in Portstewart, sunrise is at 4:53 am and sunset at 9:56 pm. On the last day of the month, sunrise is at 4:50 am and sunset at 10:10 pm BST.
Sunshine
The month with the most sunshine in Portstewart is June, with an average of 8h of sunshine.UV index
May, June, August and September, with an average maximum UV index of 4, are months with the highest UV index in Portstewart. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during June morphs into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures in Portstewart?
What is the average humidity in June in Portstewart?
How much does it rain in Portstewart in June?
When it does not snow in Portstewart?
What is the water temperature in June in Portstewart?
When are the longest days in Portstewart?
What is the average length of the day in June in Portstewart?
What time are sunrise and sunset in June in Portstewart?
What month has the most sunshine in Portstewart?
How long on average sun shines in June in Portstewart?
What are the months with the highest UV index in Portstewart?
How high is the UV index in June in Portstewart?
Average temperature in June
Portstewart, United Kingdom
- Average high temperature in June: 14.9°C
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in June: 10°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure in June
Portstewart, United Kingdom
- Average pressure in June: 1014.7mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in June
Portstewart, United Kingdom
- Average wind speed in June: 16.8km/h
The windiest month (with the highest average wind speed) is January (27.5km/h).
The calmest month (with the lowest average wind speed) is July (16.7km/h).
Average humidity in June
Portstewart, United Kingdom
- Average humidity in June: 84%
The months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in June
Portstewart, United Kingdom
- Average rainfall in June: 60mm
The wettest months (with the highest rainfall) are July and August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in June
Portstewart, United Kingdom
- Average rainfall days in June: 20.6 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is April (16.8 days).
Average snowfall in June
Portstewart, United Kingdom
- Average snowfall in June: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in June
Portstewart, United Kingdom
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in June
Portstewart, United Kingdom
- Average sea temperature in June: 11.8°C
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in June /
Average sunshine in June
Portstewart, United Kingdom
- Average daylight in June: 17h and 2min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in June: 8h and 0min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in June
Portstewart, United Kingdom
- Average sunshine days in June: 6.1 days
The month with the most sunshine days is April (9.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in June
Portstewart, United Kingdom
- Average UV index in June: 4
The months with the highest UV index are May, June, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Portstewart, United Kingdom
- Average cloud cover in June: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in June
Portstewart, United Kingdom
- Average visibility in June: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
Portstewart, United Kingdom
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