Longford Temperature by Month
The average annual maximum temperature in Longford, County Longford, Ireland is 14°C (57°F), with daytime highs ranging from 9°C (48°F) in January to 20°C (68°F) in July. This page covers monthly averages, day-night differences, and how Longford compares to cities worldwide.
Longford Monthly Temperatures
In Longford, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 12°C (54°F) in July to 3°C (37°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Longford by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Longford Temperatures: 1976-2026
Browse day-by-day temperature records for Longford spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Longford 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.
very warm
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moderate
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Longford vs World: Temperature Compared
Longford's average annual maximum temperature is 14°C (57°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.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
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.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Longford this rarely lasts long on the ground.
For more on Longford's weather — including monthly rainfall, sunshine hours, and humidity — visit our Longford climate page.
