Wicklow Temperature by Month
Wicklow in Wicklow County, Ireland sees moderate seasonal temperature shifts, with daytime highs between 9°C (48°F) in February and 18°C (64°F) in August, averaging 13°C (55°F) annually. Explore the full monthly breakdown below.
Wicklow Monthly Temperatures
The weather in Wicklow changes moderately throughout the year, offering enough variation to appreciate each season. Nights are cooler, with lows ranging from 13°C (55°F) to 4°C (39°F).
The chart below illustrates the average maximum day and minimum night temperatures in Wicklow by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 157 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Wicklow vs Ireland
The map below shows the annual temperature across Ireland. You can also select individual months if you want to compare a specific time of year.
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Wicklow vs World: Temperature Compared
Wicklow's average annual maximum temperature is 13°C (55°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Wicklow?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Wicklow, February is the coolest month, with average highs of 9°C (48°F) and humidity around 75% — considered high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Wicklow's weather — including monthly rainfall, sunshine hours, and humidity — visit our Wicklow climate page.
