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Weather in Merriwa
New South Wales, 253 m · continuously updated
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Temperature · last 4 and next 28 hours
Merriwa weather: the next 24 hours
Updated hourly.
Merriwa 14-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Merriwa
Neighbouring towns, as the crow flies.
Today in Merriwa
- Very high UV index: 8.8 around 13:00. Stay in the shade between 12:00 and 18:00. Fair skin burns in about 23 minutes: avoid exposure, cover up and use SPF 50. How it is calculated
- Best time to air the house: between 16:00 and 18:00. The outdoor dew point drops to −1.4 °C; once warmed to 20 °C, that air holds only 24 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Washing outside: between 12:00 and 14:00. With 27 % humidity, 21.6 °C and wind at 18.7 km/h, a load of cotton washing dries in about 2 h. How it is calculated
- Heat: up to 30.3 °C in the next three days (days at 30 °C or more over the next 14: 2). Night ventilation: open the windows between 17:00 and 14:00, as soon as the outside air drops below 26 °C, and close windows and shutters again in the morning. How it is calculated
- Garden: barely 0 mm of rain in 48 h against a need of about 12.9 mm. Water tomorrow, between 5:00 and 8:00, while it is cool: allow about 13 L/m². How it is calculated
- Terrace and barbecue between 18:00 and 23:00: dry, wind at 14 km/h, 19 °C at 8 pm. A lovely evening. How it is calculated
- Starry sky between 22:00 and 5:00: 0 % average cloud cover tonight, 7 h of clear sky in a row, moon at 14 % (waning crescent). A good night to look up. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-05 12:32 (local time): model values, not measurements. All of today's advice
7-day forecast for Merriwa
Today (Thursday 5 Nov) in Merriwa: light drizzle, 15 to 24 °C, precipitation 0.1 mm (67 %), wind up to 23 km/h. Tomorrow: overcast, 11 to 28 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light drizzle | 15 °C | 24 °C | 0.1 mm | 23 km/h |
| Tomorrow | overcast | 11 °C | 28 °C | 0.0 mm | 18 km/h |
| Sat 7 Nov | overcast | 13 °C | 30 °C | 0.0 mm | 30 km/h |
| Sun 8 Nov | mostly sunny | 9 °C | 23 °C | 0.0 mm | 27 km/h |
| Mon 9 Nov | sunny | 9 °C | 25 °C | 0.0 mm | 16 km/h |
| Tue 10 Nov | partly cloudy | 10 °C | 30 °C | 0.0 mm | 15 km/h |
| Wed 11 Nov | thunderstorms | 14 °C | 26 °C | 11.4 mm | 26 km/h |
Tomorrow's weather in Merriwa
Tomorrow, Friday 6 Nov, in Merriwa: overcast, from 11 to 28 °C, 0.0 mm of precipitation (probability 0 %), wind up to 18 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  sunny | 14 °C | 0.0 mm | 0 % | 4 km/h |
| 03:00 | sunny | 12 °C | 0.0 mm | 0 % | 1 km/h |
| 06:00 | sunny | 11 °C | 0.0 mm | 0 % | 2 km/h |
| 09:00 | sunny | 18 °C | 0.0 mm | 0 % | 8 km/h |
| 12:00 |  overcast | 23 °C | 0.0 mm | 0 % | 2 km/h |
| 15:00 | overcast | 27 °C | 0.0 mm | 0 % | 7 km/h |
| 18:00 |  partly cloudy | 27 °C | 0.0 mm | 0 % | 12 km/h |
| 21:00 | overcast | 21 °C | 0.0 mm | 0 % | 13 km/h |
Frequently asked questions
Will it rain tomorrow in Merriwa?
No significant rain expected (0.0 mm forecast).
How warm will it be tomorrow in Merriwa?
Between 11 and 28 °C.
The weekend
This weekend in Merriwa: Saturday overcast, 13 to 30 °C, Sunday mostly sunny, 9 to 23 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov | overcast | 13 °C | 30 °C | 0.0 mm | 30 km/h |
| Sun 8 Nov | mostly sunny | 9 °C | 23 °C | 0.0 mm | 27 km/h |
Hour by hour
The next 48 hours in Merriwa, hour by hour: temperature from 11 to 28 °C, 0.0 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 12:00 | sunny | 22 °C | 0.0 mm | 0 % | 19 km/h |
| 13:00 | sunny | 23 °C | 0.0 mm | 0 % | 18 km/h |
| 14:00 | sunny | 24 °C | 0.0 mm | 0 % | 19 km/h |
| 15:00 | sunny | 24 °C | 0.0 mm | 0 % | 21 km/h |
| 16:00 | sunny | 24 °C | 0.0 mm | 0 % | 21 km/h |
| 17:00 | sunny | 24 °C | 0.0 mm | 0 % | 21 km/h |
| 18:00 | sunny | 23 °C | 0.0 mm | 0 % | 20 km/h |
| 19:00 | sunny | 21 °C | 0.0 mm | 0 % | 16 km/h |
| 20:00 | sunny | 19 °C | 0.0 mm | 0 % | 12 km/h |
| 21:00 | sunny | 18 °C | 0.0 mm | 0 % | 10 km/h |
| 22:00 | sunny | 16 °C | 0.0 mm | 0 % | 11 km/h |
| 23:00 | sunny | 15 °C | 0.0 mm | 0 % | 6 km/h |
| 00:00 | sunny | 14 °C | 0.0 mm | 0 % | 4 km/h |
| 01:00 | sunny | 13 °C | 0.0 mm | 0 % | 4 km/h |
| 02:00 | sunny | 12 °C | 0.0 mm | 0 % | 4 km/h |
| 03:00 | sunny | 12 °C | 0.0 mm | 0 % | 1 km/h |
| 04:00 | sunny | 12 °C | 0.0 mm | 0 % | 0 km/h |
| 05:00 | sunny | 12 °C | 0.0 mm | 0 % | 1 km/h |
| 06:00 | sunny | 11 °C | 0.0 mm | 0 % | 2 km/h |
| 07:00 | sunny | 13 °C | 0.0 mm | 0 % | 3 km/h |
| 08:00 | sunny | 16 °C | 0.0 mm | 0 % | 4 km/h |
| 09:00 | sunny | 18 °C | 0.0 mm | 0 % | 8 km/h |
| 10:00 | sunny | 20 °C | 0.0 mm | 0 % | 8 km/h |
| 11:00 | sunny | 22 °C | 0.0 mm | 0 % | 5 km/h |
| 12:00 | overcast | 23 °C | 0.0 mm | 0 % | 2 km/h |
| 13:00 | overcast | 25 °C | 0.0 mm | 0 % | 4 km/h |
| 14:00 | overcast | 26 °C | 0.0 mm | 0 % | 5 km/h |
| 15:00 | overcast | 27 °C | 0.0 mm | 0 % | 7 km/h |
| 16:00 | overcast | 27 °C | 0.0 mm | 0 % | 7 km/h |
| 17:00 | overcast | 28 °C | 0.0 mm | 0 % | 7 km/h |
| 18:00 | partly cloudy | 27 °C | 0.0 mm | 0 % | 12 km/h |
| 19:00 | mostly sunny | 26 °C | 0.0 mm | 0 % | 14 km/h |
| 20:00 | partly cloudy | 23 °C | 0.0 mm | 0 % | 18 km/h |
| 21:00 | overcast | 21 °C | 0.0 mm | 0 % | 13 km/h |
| 22:00 | sunny | 20 °C | 0.0 mm | 0 % | 6 km/h |
| 23:00 | sunny | 19 °C | 0.0 mm | 0 % | 5 km/h |
| 00:00 | sunny | 18 °C | 0.0 mm | 0 % | 5 km/h |
| 01:00 | sunny | 17 °C | 0.0 mm | 0 % | 4 km/h |
| 02:00 | sunny | 16 °C | 0.0 mm | 0 % | 4 km/h |
| 03:00 | sunny | 15 °C | 0.0 mm | 0 % | 5 km/h |
| 04:00 | sunny | 14 °C | 0.0 mm | 0 % | 5 km/h |
| 05:00 | sunny | 14 °C | 0.0 mm | 0 % | 6 km/h |
| 06:00 | sunny | 13 °C | 0.0 mm | 0 % | 6 km/h |
| 07:00 | partly cloudy | 15 °C | 0.0 mm | 0 % | 8 km/h |
| 08:00 | partly cloudy | 20 °C | 0.0 mm | 0 % | 7 km/h |
| 09:00 | partly cloudy | 23 °C | 0.0 mm | 0 % | 12 km/h |
| 10:00 | partly cloudy | 25 °C | 0.0 mm | 0 % | 15 km/h |
| 11:00 | partly cloudy | 27 °C | 0.0 mm | 0 % | 18 km/h |
Location of Merriwa
Merriwa lies at 253 m, 35 m above the average of the 330 places we cover in New South Wales (218 m). That makes it the 98th highest of the 330. The main town, Sydney, lies 208 km to the south. The nearest places we cover are Denman (42 km to the south-east), Scone (49 km to the east), Aberdeen (50 km to the east) and Muswellbrook (52 km to the east). With about 1,759 inhabitants according to GeoNames, Merriwa is the 233rd largest of the 330 places we cover in New South Wales.
Today is close to the November normal (26.2 °C).
Climate of Merriwa: 1991–2020 normals
In Merriwa, January is typically the warmest month (up to 30.1 °C on average), while July is the coldest at 5.4 °C. December sees the most rain, with around 72 mm.
By season (average highs, 1991–2020 normals): winter 15.6 °C and 110 mm of rain, spring 23.4 °C and 161 mm, summer 29.1 °C and 201 mm, autumn 22.4 °C and 112 mm. The wettest season is summer (34 % of the annual total), the driest winter (19 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 30.1 | 18.6 | 63 | 7 |
| February | 28.7 | 18.0 | 67 | 6 |
| March | 26.1 | 16.0 | 50 | 6 |
| April | 22.6 | 12.6 | 30 | 4 |
| May | 18.5 | 9.1 | 31 | 5 |
| June | 15.4 | 6.9 | 44 | 6 |
| July | 14.8 | 5.4 | 35 | 5 |
| August | 16.6 | 6.1 | 32 | 4 |
| September | 20.3 | 8.9 | 40 | 5 |
| October | 23.8 | 11.9 | 52 | 7 |
| November | 26.2 | 14.6 | 70 | 8 |
| December | 28.4 | 16.7 | 72 | 8 |
Compared with Sydney, the main town 208 km to the south, highs in the warmest month are 5.1 °C higher here, and the year brings 295 mm less precipitation. In no month does the average low fall below 0 °C; in 8 months the average high exceeds 20 °C (January, February, March, April, September, October, November and December).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Denman (42 km to the south-east): summers 0.3 °C warmer and 2 mm wetter a year; Scone (49 km to the east): equally warm summers and 84 mm wetter a year. Among the 330 places we cover in New South Wales whose normals come from the ERA5 reanalysis, Merriwa ranks 76th for summer warmth and 273rd for annual precipitation. The warmest summers are in Bourke and the coolest in Guyra; the wettest year is in Dorrigo and the driest in Broken Hill.
What is the warmest month in Merriwa?
The warmest month in Merriwa is typically January, averaging 30.1 °C (1991–2020 normal). The coldest is July, at 5.4 °C.
How many rainy days does Merriwa get per year?
Merriwa sees about 71 rainy days a year, adding up to roughly 584 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Merriwa?
Between January and July, the temperature gap in Merriwa runs to about 24.7 °C, based on the 1991–2020 normals.