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Newcastle in August: Weather, Average temperature and Climate

Discover the weather for Newcastle in August and if it’s a good time to travel (based on historical data).
Check flight prices to Newcastle on Avionero:
August

Weather in Newcastle in August 2025

OK Weather
Mild
🌧️
Rainy
🌊
Fresh water
August could be a good time to visit Newcastle, as the weather is generally fine. The average high temperature is around +19°C, and there are typically 3 sunny days in August. However, expect about 19 rainy days, and total monthly rainfall of approximately 72 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • August is usually the hottest month of the year in Newcastle;

Average weather

☀️
+19°C
Avg. max. temperature
+4°C
Min.
+32°C
Max.
72 mm
Total precipitation
77%
Avg. humidity
3 m/s
Avg. wind
3 ☀️
Sunny Days
8 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Newcastle has OK weather in August.

Average temperature in Newcastle in August

Here are the expected maximum, average and minimum temperatures in Newcastle for August based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in August is +19°C with a maximum of +24°C and a minimum of +7°C.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +18°C to +18°C.

Is Newcastle warm or cold in August?

Newcastle is typically mild in August.

Maximum temperatures go up compared to the previous month from +19°C to +19°C. The minimum temperature also goes up from +12°C to +12°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

August is the hottest month in Newcastle, here is the comparison with other months:

Water temperature in Newcastle in August

Water in Newcastle in August is Fresh. It varies from +17°C to +20°C, with an average of +19°C. This is almost similar to the air temperature, which averages +19°C.

The water temperature in August is one of the coldest of the entire year:

The warmest water temperatures in Newcastle are reached in February, when the average sea temperature rises to +24°C. The coldest water temperatures are in August, with an average of +19°C.

Can you swim in Newcastle in August?

Water temperature (+19°C) in Newcastle in August might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.

Climate in Newcastle in August

Newcastle weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+19°C+19°C+17°C
Min. temperature
+5°C+4°C+2°C
Max. temperature
+34°C+32°C+27°C
Rainfall
65 mm72 mm57 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+19°C+19°C+19°C
Humidity
76%77%79%
Air pressure
1013 HPa1012 HPa1013 HPa
Sunny days
333
Cloudy days
9810
Rainy days
181916
Snowy days
000

August weather is still as ok as in July. The temperature levels stay the same in the area of +19°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 65 mm to 72 mm. Humidity rises from 76% to 77%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.

September brings much the same weather, it remains ok.

Wind

Wind speed in Newcastle in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Newcastle is gradually decreasing during August, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Newcastle based on historical data.
Last Year
Historical Data
Total precipitation in August is about 101 mm, with a 55% chance of rain on a typical day. The maximum amount of rainfall per day is around 30 mm, which is moderate rain. August is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
August is one of the rainiest months in Newcastle, here is a comparison with other months, total mm:
Newcastle wettest month is August, where a typical day has a 61% chance of precipitation and 72 mm of rainfall per day. February, on the other hand, is the driest month with a mere 41% chance of precipitation and 46 mm of rainfall per day.

How was the weather last August in Newcastle?

This is the weather in Newcastle in August 2023:
1 August
☁️
+18°C
2 August
🌧️
+16°C
3 August
☁️
+18°C
4 August
🌧️
+16°C
5 August
🌧️
+14°C
6 August
☀️
+16°C
7 August
☀️
+18°C
8 August
☀️
+18°C
9 August
☀️
+20°C
10 August
☁️
+24°C
11 August
☀️
+23°C
12 August
☀️
+20°C
13 August
☀️
+22°C
14 August
🌧️
+15°C
15 August
🌧️
+20°C
16 August
☁️
+19°C
17 August
☁️
+17°C
18 August
☁️
+17°C
19 August
☁️
+21°C
20 August
☀️
+22°C
21 August
☀️
+21°C
22 August
☀️
+21°C
23 August
☀️
+20°C
24 August
🌧️
+19°C
25 August
🌧️
+18°C
26 August
🌧️
+16°C
27 August
🌧️
+17°C
28 August
☀️
+17°C
29 August
☀️
+18°C
30 August
☀️
+16°C
31 August
☀️
+18°C
In August 2023 Newcastle had 15 sunny days, 7 cloudy days, and 9 rainy days. The average maximum temperature was +19°C, with an absolute maximum of +24°C and a minimum of +14°C. The average humidity was 81%, with a maximum of 99% and a minimum of 51%. The average wind speed was 3 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change over Years

This is how Newcastle climate have been changing during last 43 years period.

The climate in Newcastle in August has not changed much over the last 43 years.

The average temperature was the lowest in 1996 (+11°C) and the highest in 2022 (+14°C). The driest year was 2003 with only 518 mm of rainfall, and the wettest year was 2012 with 1037 mm.

FAQ

Frequently asked questions about the weather in Newcastle in August:

Is August a good time to visit Newcastle?

It’s always a good time to visit Newcastle, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Newcastle in August?

August has mild temperatures in Newcastle. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in Newcastle in August?

In general, you can swim in Newcastle in August, if you want to, at an average water temperature of +19°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.

Is Newcastle rainy in August?

Newcastle is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Newcastle in August?

Usually, it’s not very sunny in Newcastle in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in United Kingdom

Check out the weather for other cities in United Kingdom.

Monthly weather in Newcastle

Source of the data

For this page, we’ve looked at the typical weather in Newcastle, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.