Merilup Weather Forecast

Today 18 Dec
- 13
- 26
Partly cloudy
Fri 19 Dec
- 13
- 31
Partly cloudy
Sat 20 Dec
- 13
- 24
Partly cloudy
Sun 21 Dec
- 9
- 27
Partly cloudy
Mon 22 Dec
- 10
- 28
Sunny
Tue 23 Dec
- 13
- 30
Cloudy
Wed 24 Dec
- 12
- 33
Sunny

Today 18 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 19 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 20 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sun 21 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Mon 22 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Tue 23 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Wed 24 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm

Today 18 Dec Great Southern

Partly cloudy. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures 25 to 31.

Merilup Temperature Statistics View More

December Temperature

Lake Grace (34km)

Lowest 15 August, 2025
-0.1 °C
Average 2025
16.7 °C
Highest 24 January, 2025
44.2 °C
Lowest 2 November, 2025
5.8 °C
Average November
17.2 °C
Highest 12 November, 2025
31.8 °C
Lowest 6 December, 2025
10.8 °C
Average December
23 °C
Highest 16 December, 2025
41.8 °C

Climate (2020–Present)

Lake Grace (34km)

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Average Low 2020–2025
10.4 °C
Average 2020–2025
16.5 °C
Average High 2020–2025
23.9 °C

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