Cowes Jetty Weather Forecast

Today 18 May
- 13
- 17
Shower or two
Tue 19 May
- 11
- 17
Shower or two
Wed 20 May
- 12
- 17
Showers easing
Thu 21 May
- 12
- 17
Cloudy
Fri 22 May
- 11
- 16
Partly cloudy
Sat 23 May
- 10
- 17
Possible shower
Sun 24 May
- 11
- 15
Shower or two

Today 18 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 19 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Wed 20 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Thu 21 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 22 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sat 23 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 24 May
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 18 May Central

Cloudy. High chance of showers. Light winds. Overnight temperatures falling to between 9 and 12 with daytime temperatures reaching between 15 and 18.

Western Port Local Waters

Wind: Variable below 10 knots.

Seas: Below 0.5 metres.

Weather: Cloudy. 60% chance of showers.

Cowes Jetty Temperature Statistics View More

May Temperature

Rhyll (6km)

Lowest 7 May, 2026
8.1 °C
Average 2026
18 °C
Highest 9 January, 2026
35.9 °C
Lowest 19 April, 2026
8.5 °C
Average April
16 °C
Highest 1 April, 2026
27.5 °C
Lowest 7 May, 2026
8.1 °C
Average May
15 °C
Highest 1 May, 2026
25.2 °C

Climate (2021–Present)

Rhyll (6km)

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Average Low 2021–2026
12.1 °C
Average 2021–2026
15.1 °C
Average High 2021–2026
19.4 °C

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