Newcastle Temperature by Month
Newcastle, Jamaica has a consistently comfortable climate year-round, with daytime highs averaging 29°C (84°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Newcastle Monthly Temperatures
The climate in Newcastle remains fairly constant, offering comfortable temperatures throughout the year. Maximum daytime temperatures reach a very warm 31°C (88°F) in August, dropping to a comfortable 27°C (81°F) in February. Nighttime lows stay between 25°C (77°F) and 22°C (72°F).
The chart below illustrates the average maximum day and minimum night temperatures in Newcastle by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 263 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Newcastle Temperatures: 1976-2026
Browse day-by-day temperature records for Newcastle spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Newcastle vs Jamaica
The map below shows the annual temperature across Jamaica. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Newcastle vs World: Temperature Compared
Newcastle's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Newcastle?
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 Newcastle, February is the coolest month, with average highs of 27°C (81°F) and humidity around 73% — considered high. In August, the warmest month, temperatures average 31°C (88°F) with 76% humidity — conditions that feel 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.
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 Newcastle this rarely lasts long on the ground.
For more on Newcastle's weather — including monthly rainfall, sunshine hours, and humidity — visit our Newcastle climate page.
