Castlemaine Temperature by Month
The average annual maximum temperature in Castlemaine, Kerry, Ireland is 14°C (57°F), with daytime highs ranging from 10°C (50°F) in January to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Castlemaine compares to cities worldwide.
Castlemaine Monthly Temperatures
In Castlemaine, 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 Castlemaine by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 140 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Castlemaine 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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Castlemaine vs World: Temperature Compared
Castlemaine'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:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
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 Castlemaine?
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 Castlemaine, January is the coolest month, with average highs of 10°C (50°F) and humidity around 78% — 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Castlemaine's weather — including monthly rainfall, sunshine hours, and humidity — visit our Castlemaine climate page.
