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Newcastle Weather in May
May in Newcastle typically sees daytime highs of 21°C (70°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Newcastle in May
Expect around 11 days of rain based on historical data, with 89 mm (3.5 in) average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Newcastle in May
May is a good time to be in Newcastle. Days are excellent, reaching 21°C (70°F), with nights around 15°C (59°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Newcastle Temperature in May
Min Temperature
15°C (59°F)
Max Temperature
21°C (70°F)
Chance of Rain
38%
Precipitation
89 mm (3.5 in)
Rainy days
11 days
Humidity
58% *
* Data from: Maitland, Australia (30 KM, 18 Miles).
Newcastle Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Newcastle - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Newcastle typically stay consistent throughout May, with daily highs averaging around 21°C (70°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Newcastle in May
Browse day-by-day weather records for Newcastle spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Newcastle historical weather extremes in May
Based on weather observations in Newcastle between 1989 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Newcastle reached 28°C (82°F) (May 23, 2016).
- Newcastle experienced its chilliest May day on May 31, 1997, reaching only 13°C (55°F).
- The lowest overnight temperature recorded in May was 3°C (37°F) (May 24, 2012).
Best Places in Australia in May
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Newcastle in May
For Newcastle in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Newcastle in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Newcastle 3-Day Forecast
More climate data for Newcastle
See the full Newcastle climate overview or explore weather in Australia.
Popular in May
Where to go in May - average daytime high across popular destinations.
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