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Weather in Discovery Bay for September 2025

Your guide to Discovery Bay weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Discovery Bay at the beginning of September is 29.9 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.4 °C by the end of September.

    • Rain 🌧️

  • Discovery Bay experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 127.8 mm.

Average dry days
6
Dry days
Average rainy days
24
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/25°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Discovery Bay Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
30°
2
Moderate rain at times
30°
3
Moderate rain at times
30°
4
Moderate rain at times
30°
5
Overcast
30°
6
Patchy rain possible
29°
7
Moderate rain at times
30°
8
Patchy rain possible
31°
9
Cloudy
32°
10
Patchy rain possible
31°
11
Heavy rain at times
31°
12
Moderate or heavy rain shower
31°
13
Moderate rain at times
31°
14
Moderate or heavy rain shower
31°
15
Moderate or heavy rain shower
31°
16
Moderate rain at times
32°
17
Patchy rain possible
31°
18
Partly cloudy
30°
19
Overcast
31°
20
Moderate rain at times
31°
21
Moderate rain at times
30°
22
Moderate or heavy rain shower
27°
23
Heavy rain at times
29°
24
Patchy rain possible
28°
25
Moderate or heavy rain shower
30°
26
Patchy rain possible
31°
27
Heavy rain at times
31°
28
Moderate or heavy rain shower
28°
29
Patchy rain possible
29°
30
Thundery outbreaks possible
29°

Temperatures trend during September in Discovery Bay

See the weather trend as well as the moving average line

September weather in Discovery Bay day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 30° /25° 1 mm 7
2 Sept. Moderate rain at times
Moderate rain at times
 30° /25° 1.9 mm 7
3 Sept. Moderate rain at times
Moderate rain at times
 30° /26° 1.3 mm 7
4 Sept. Moderate rain at times
Moderate rain at times
 30° /25° 10.1 mm 7
5 Sept. Overcast
Overcast
 30° /25° 0 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 29° /25° 0.6 mm 6
7 Sept. Moderate rain at times
Moderate rain at times
 30° /25° 1.3 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
 31° /25° 0.2 mm 7
9 Sept. Cloudy
Cloudy
 32° /26° 0.1 mm 7
10 Sept. Patchy rain possible
Patchy rain possible
 31° /27° 2.2 mm 7
11 Sept. Heavy rain at times
Heavy rain at times
 31° /26° 3.1 mm 7
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 11.2 mm 7
13 Sept. Moderate rain at times
Moderate rain at times
 31° /26° 1.7 mm 7
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 5.9 mm 7
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 6.1 mm 7
16 Sept. Moderate rain at times
Moderate rain at times
 32° /27° 1.9 mm 7
17 Sept. Patchy rain possible
Patchy rain possible
 31° /26° 0.7 mm 7
18 Sept. Partly cloudy
Partly cloudy
 30° /25° 0 mm 8
19 Sept. Overcast
Overcast
 31° /26° 0 mm 7
20 Sept. Moderate rain at times
Moderate rain at times
 31° /24° 1.8 mm 7
21 Sept. Moderate rain at times
Moderate rain at times
 30° /24° 2.8 mm 7
22 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /24° 16.4 mm 6
23 Sept. Heavy rain at times
Heavy rain at times
 29° /25° 17.5 mm 6
24 Sept. Patchy rain possible
Patchy rain possible
 28° /23° 2.5 mm 6
25 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /25° 26.5 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
 31° /25° 0.3 mm 7
27 Sept. Heavy rain at times
Heavy rain at times
 31° /25° 2.2 mm 7
28 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /26° 7.3 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 29° /25° 1.2 mm 6
30 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 29° /26° 0 mm 6
Next
Important Notice
Our weather forecast for Discovery Bay in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Discovery Bay forecast closer to your planned date for the most up-to-date weather information.
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Discovery Bay in September - FAQ

What are the expected maximum and minimum temperatures in Discovery Bay during September?
During September, expect a variety of temperatures with highs around 30° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Discovery Bay during September?
Significant rainfall exceeding 127.8 mm is expected in Discovery Bay during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Discovery Bay during September?
The average wind speed in Discovery Bay during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Discovery Bay

Explore the daily rainfall trends and prepare for Discovery Bays September weather 💧

UV exposure in Discovery Bay during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Discovery Bay?

Get accurate weather forecasts for Discovery Bay, located at latitude 18.459 and longitude -77.4. Stay updated with localized weather information tailored for Discovery Bay.

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