The best times to visit Newcastle for ideal weather are

March 19th to May 27th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Newcastle Travel Info

Weather in Newcastle


Average temperatures in Newcastle vary somewhat. Considering humidity, temperatures feel very enjoyable all year with a low chance of precipitation most of the year. The area is somewhat temperate — in the 57th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Newcastle, the hottest months are February, January, and then December. See average monthly temperatures below. The warmest time of year is generally early February where highs are regularly around 88.2°F (31.2°C) with temperatures rarely dropping below 62.6°F (17°C) at night.

Newcastle Temperatures (Fahrenheit)


Newcastle Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Newcastle Perceived Temperature (F)


Newcastle Perceived Temperature (C)



Average Newcastle Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 86.4 71.4 63
Feb 87.3 71.6 62.1
Mar 84.8 69.1 59.8
Apr 79.6 63 52.2
May 78.2 60.1 46.5
Jun 73.1 54.3 40.6
Jul 72.2 53.6 39.9
Aug 77.8 59.2 45.1
Sep 83.5 65.6 51.9
Oct 83.7 66.1 54.7
Nov 86 69.1 58.8
Dec 86.8 71 61.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 30.2 21.9 17.2
Feb 30.7 22 16.7
Mar 29.3 20.6 15.4
Apr 26.4 17.2 11.2
May 25.7 15.6 8.1
Jun 22.8 12.4 4.8
Jul 22.3 12 4.4
Aug 25.4 15.1 7.3
Sep 28.6 18.7 11.1
Oct 28.7 18.9 12.6
Nov 30 20.6 14.9
Dec 30.4 21.7 16.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Newcastle are July, May, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid May. For example, on the week of May 14th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid to late November with an average of 3 days of significant precipitation the week of November 19th.

When can you find snow in Newcastle? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Newcastle.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Newcastle (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 26% 0 5.6
Feb 14% 0 2.4
Mar 22% 0 3.5
Apr 9% 0 1.4
May 1% 0 0.2
Jun 2% 0 0.1
Jul 0% 0 0.1
Aug 2% 0 0.2
Sep 4% 0 0.4
Oct 13% 0 1.7
Nov 20% 0 3
Dec 27% 0 3.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 26 0 14.2
Feb 14 0 6.1
Mar 22 0 8.9
Apr 9 0 3.6
May 1 0 0.5
Jun 2 0 0.3
Jul 0 0 0.3
Aug 2 0 0.5
Sep 4 0 1
Oct 13 0 4.3
Nov 20 0 7.6
Dec 27 0 9.4


Humidity and Wind

Newcastle has some humid months, and slightly dry months in the opposite season. The least humid month is August (38.4% relative humidity), and the most humid month is January (68.4%).

Wind in Newcastle is usually calm. The windiest month is November, followed by September and October. November’s average wind speed of around 7.3 knots (8.4 MPH or 13.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late August to early September where average top sustained speeds reach 12.9 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Newcastle.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.4 Light breeze 9.1 Gentle breeze
Feb 5.2 Light breeze 8.9 Gentle breeze
Mar 5 Light breeze 8.6 Gentle breeze
Apr 4.5 Light breeze 8 Gentle breeze
May 4.4 Light breeze 8.1 Gentle breeze
Jun 5 Light breeze 8.9 Gentle breeze
Jul 5 Light breeze 9.1 Gentle breeze
Aug 5.8 Light breeze 10.3 Gentle breeze
Sep 7.2 Gentle breeze 11.9 Gentle breeze
Oct 7 Gentle breeze 11.6 Significant breeze
Nov 7.3 Gentle breeze 12.2 Gentle breeze
Dec 6.2 Light breeze 10.8 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 68.4%
Feb 65.4%
Mar 66.4%
Apr 60.2%
May 45.3%
Jun 42.3%
Jul 38.6%
Aug 38.4%
Sep 41.4%
Oct 55.1%
Nov 57.1%
Dec 62.3%


Is it Safe to Travel to Newcastle?

Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for South Africa; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Newcastle, South Africa is August, followed by June and March. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Newcastle in February. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 56.7 in February means 56.7% of the tourists vs. August.



Overall Newcastle Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 85.2°F (29.6°C) and 75.4°F (24.1°C) with colder temperatures in the later months. Rain is rare with 0 to 7 days of significant precipitation per month. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.

Winter (June through August)

The middle-year months have cold weather with high temperatures that are comfortable. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Newcastle, so lodging and other accommodations may cost more than usual.

Spring (September through November)

Spring daily highs range from 88.1°F (31.2°C) and 82°F (27.8°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 1 to 6 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Summer (December through February)

Weather is perfect this time of year in Newcastle to be enjoyable for warm weather travelers. The average high during this season is between 88.2°F (31.2°C) and 84.8°F (29.3°C). On average, it rains or snows a fair amount: 4 to 8 times per month. These times of year are the slowest with tourists.


Best Times to TravelSouth Africa › Newcastle, South Africa