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Northern IrelandThe weather in June in Portstewart
It's cool to moderate in June in Portstewart with an average temperature of 17°C. Temperatures this month range from a low of 16°C to a high of 18°C. At night, you can expect temperatures between 9°C and 13°C.
Looking for sun and warm weather? June isn’t a good month to be in Portstewart. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Portstewart, Northern Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 26°C in 2023, Portstewart reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 10°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 17°C.
Rainfall amount
In June, there is an average of 61 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in June for Portstewart
Click on any day in June to get detailed info about the usual weather on that day in Portstewart. Check out the historical temperatures and precipitation over the past 10 years on this day.
June weather comparison
| Portstewart | New York | |
|---|---|---|
| Average temperature | 17°C | 27°C |
| Max. temperature | 18°C | 31°C |
| Min. temperature | 9°C | -5°C |
| Total precipitation | 61 mm | 78 mm |
| Rainy days | 9 days | 11 days |
Start of June
The month of June starts in Portstewart with cool temps, averaging around 17°C during the day and nights around 11°C.
Mid June
By mid-June, daytime temps stay steady at around 17°C, with nights around 12°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of June
By the end of June, the average daytime temperature in Portstewart is around 18°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Portstewart for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in June in Portstewart, Northern Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in June in Portstewart
Temperature in June in Portstewart over the years
Precipitation charts
These charts show the average amount of precipitation in June in Portstewart, Northern Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in June in Portstewart
Total precipitation in June in Portstewart over the years
Daily UV index in June in Portstewart
This chart shows the average daily UV index in June in Portstewart, 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.
Weather experiences in June in Portstewart
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Average weather in Portstewart by month
Click on a month below to see detailed weather info for Portstewart. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.