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Weather in Bay Islands for September 2025

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

    Temperatures

  • In general, the average temperature in Bay Islands at the beginning of September is 29.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.4 °C by the end of September.

    • Rain 🌧️

  • Bay Islands experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 193.4 mm.

Average dry days
3
Dry days
Average rainy days
27
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/27°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Bay Islands Weather September

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

Temperatures trend during September in Bay Islands

See the weather trend as well as the moving average line

September weather in Bay Islands day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate rain at times
Moderate rain at times
 29° /27° 2.9 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
 30° /28° 2 mm 7
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /28° 9.8 mm 7
4 Sept. Moderate rain at times
Moderate rain at times
 30° /27° 10.4 mm 7
5 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /27° 17 mm 6
6 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /26° 21.4 mm 7
7 Sept. Heavy rain at times
Heavy rain at times
 29° /28° 2.1 mm 6
8 Sept. Overcast
Overcast
 29° /28° 0 mm 6
9 Sept. Heavy rain at times
Heavy rain at times
 29° /27° 12.7 mm 6
10 Sept. Patchy rain possible
Patchy rain possible
 29° /28° 1.7 mm 6
11 Sept. Sunny
Sunny
 29° /28° 0 mm 7
12 Sept. Partly cloudy
Partly cloudy
 29° /28° 2 mm 7
13 Sept. Partly cloudy
Partly cloudy
 29° /28° 0 mm 7
14 Sept. Cloudy
Cloudy
 30° /28° 0.8 mm 6
15 Sept. Patchy rain possible
Patchy rain possible
 29° /28° 2.7 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 29° /28° 3.1 mm 6
17 Sept. Patchy rain possible
Patchy rain possible
 30° /27° 4.1 mm 6
18 Sept. Patchy rain possible
Patchy rain possible
 29° /28° 2.3 mm 6
19 Sept. Patchy rain possible
Patchy rain possible
 29° /27° 3.9 mm 6
20 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /27° 7.1 mm 6
21 Sept. Moderate rain at times
Moderate rain at times
 29° /28° 2.6 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 28° /26° 6.3 mm 6
23 Sept. Heavy rain at times
Heavy rain at times
 28° /26° 16.1 mm 6
24 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 37.5 mm 6
25 Sept. Heavy rain at times
Heavy rain at times
 30° /27° 7 mm 7
26 Sept. Moderate rain at times
Moderate rain at times
 30° /27° 2 mm 7
27 Sept. Patchy rain possible
Patchy rain possible
 30° /28° 1.6 mm 7
28 Sept. Heavy rain at times
Heavy rain at times
 30° /28° 2.8 mm 7
29 Sept. Moderate rain at times
Moderate rain at times
 29° /27° 2.8 mm 6
30 Sept. Moderate rain at times
Moderate rain at times
 28° /28° 8.7 mm 6
Next
Important Notice
Our weather forecast for Bay Islands 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 Bay Islands forecast closer to your planned date for the most up-to-date weather information.
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Bay Islands in September - FAQ

What are the expected maximum and minimum temperatures in Bay Islands during September?
During September, expect a variety of temperatures with highs around 29° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bay Islands during September?
Significant rainfall exceeding 193.4 mm is expected in Bay Islands during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bay Islands during September?
The average wind speed in Bay Islands during September is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Bay Islands

Explore the daily rainfall trends and prepare for Bay Islandss September weather 💧

UV exposure in Bay Islands during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Bay Islands?

Get accurate weather forecasts for Bay Islands, located at latitude 16.448 and longitude -85.894. Stay updated with localized weather information tailored for Bay Islands.

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