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Newcastle weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Newcastle?
For a warm holiday, the best week has been 2–8 March (Weather Index 93). Favourable start dates for a 7-day trip run from 26 February to 7 March. November to March are warmest (28°C), June is driest and March and June to January have the most sun.
- Warmest
- November to March 28°C
- Coolest
- June 21°C
- Driest
- June 6% rain-day chance
- Wettest
- December 63% rain-day chance
- Sunniest
- March and June to January 10 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Newcastle
Newcastle historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 28.3 | 16.6 | 51.6 | 16.0 | 135.1 | 10.3 |
| February | 28.1 | 17.1 | 55.4 | 15.5 | 142.4 | 9.5 |
| March | 27.7 | 15.6 | 38.7 | 12.0 | 99.3 | 10.0 |
| April | 24.9 | 12.6 | 30.0 | 9.0 | 83.6 | 9.0 |
| May | 23.5 | 8.7 | 11.9 | 3.7 | 19.7 | 9.3 |
| June | 21.5 | 5.6 | 5.7 | 1.7 | 6.2 | 9.5 |
| July | 21.5 | 5.3 | 7.1 | 2.2 | 9.5 | 9.6 |
| August | 24.3 | 7.9 | 10.6 | 3.3 | 15.8 | 9.8 |
| September | 27.1 | 11.1 | 24.0 | 7.2 | 50.8 | 10.0 |
| October | 27.1 | 12.7 | 39.0 | 12.1 | 74.9 | 9.8 |
| November | 27.8 | 14.7 | 53.3 | 16.0 | 113.7 | 9.9 |
| December | 28.3 | 16.4 | 62.6 | 19.4 | 169.1 | 10.0 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.