Hawkesbury River - Gloucester Reach Weather Forecast

Today 15 Dec
- 18
- 26
Shower or two
Tue 16 Dec
- 16
- 23
Possible shower
Wed 17 Dec
- 17
- 30
Partly cloudy
Thu 18 Dec
- 16
- 38
Sunny
Fri 19 Dec
- 22
- 37
Shower or two developing
Sat 20 Dec
- 21
- 34
Shower or two
Sun 21 Dec
- 22
- 38
Shower or two

Today 15 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 16 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 17 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
Thu 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

Today 15 Dec Sydney

Cloudy. Medium chance of showers, most likely in the evening. Winds southeasterly 20 to 30 km/h.

Hawkesbury River - Gloucester Reach Temperature Statistics View More

December Temperature

Mangrove Mountain (35km)

Lowest 20 July, 2025
-0.6 °C
Average 2025
16.3 °C
Highest 28 January, 2025
40.7 °C
Lowest 12 November, 2025
4.4 °C
Average November
19.9 °C
Highest 25 November, 2025
38.1 °C
Lowest 2 December, 2025
7.3 °C
Average December
20.8 °C
Highest 6 December, 2025
40.3 °C

Climate (2020–Present)

Mangrove Mountain (35km)

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Average Low 2020–2025
11.2 °C
Average 2020–2025
16.1 °C
Average High 2020–2025
22.8 °C

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