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Weather in Hainan Dao for September 2025

Your guide to Hainan Dao weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Rainstorm Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Hainan Dao has been nearly identical to the historical average, with a temperature of 30.3 °C (showing only a slight deviation of -0.1 °C).

  • Expect cooler weather in the next days in Hainan Dao with the forecast suggesting a temperature of 28.3 °C, lower than the historical average.

  • In general, the average temperature in Hainan Dao at the beginning of September is 31.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 28.1 °C by the end of September.

    • Rain 🌧️

  • Hainan Dao experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 422.5 mm.

    • More

  • Is September a good time to visit Hainan Dao? check out the best time to travel to Hainan Dao page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
4
Dry days
Average rainy days
26
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/23°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
87 %
Avg humidity

Hainan Dao Weather September

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

Temperatures trend during September in Hainan Dao

See the weather trend as well as the moving average line

September weather in Hainan Dao day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 32° /23° 6.5 mm 7
2 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 32° /23° 12.1 mm 7
3 Sept. Light rain shower
Light rain shower
 32° /23° 5.5 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 32° /24° 3.2 mm 7
5 Sept. Light rain shower
Light rain shower
 32° /24° 11.6 mm 7
6 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 30° /23° 24.6 mm 7
7 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /23° 86.5 mm 6
8 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 30° /23° 5.8 mm 7
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /23° 22.1 mm 7
10 Sept. Light rain shower
Light rain shower
 27° /23° 10.9 mm 6
11 Sept. Patchy light drizzle
Patchy light drizzle
 29° /23° 3.4 mm 7
12 Sept. Light rain shower
Light rain shower
 30° /23° 2 mm 7
13 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 31° /22° 11 mm 7
14 Sept. Patchy rain possible
Patchy rain possible
 30° /23° 7.5 mm 7
15 Sept. Light rain shower
Light rain shower
 31° /23° 8.5 mm 7
16 Sept. Heavy rain
Heavy rain
 28° /22° 71.2 mm 2.1
17 Sept. Moderate rain
Moderate rain
 29° /22° 10.9 mm 2.8
18 Sept. Patchy rain possible
Patchy rain possible
 29° /23° 3.9 mm 2.8
19 Sept. Moderate rain
Moderate rain
 30° /23° 9 mm 2.8
20 Sept. Moderate rain
Moderate rain
 31° /22° 6 mm 3.2
21 Sept. Patchy rain possible
Patchy rain possible
 29° /23° 1.3 mm 6
22 Sept. Moderate rain
Moderate rain
 28° /23° 15.5 mm 5
23 Sept. Heavy rain
Heavy rain
 26° /23° 42.5 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 28° /22° 1.7 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 26° /21° 0.1 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 28° /20° 0.5 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 27° /21° 0.5 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 28° /20° 0.2 mm 5
29 Sept. Partly cloudy
Partly cloudy
 29° /21° 0.1 mm 6
30 Sept. Patchy light drizzle
Patchy light drizzle
 31° /23° 5.1 mm 7
Next
Important Notice
Our weather forecast for Hainan Dao 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 Hainan Dao forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Hainan Dao weather in September vs August vs October

Compare September weather in Hainan Dao with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures33°/24°30°/23°27°/21°
Rainfall147 mm423 mm357 mm
Wind11.7 km/h15.1 km/h18.2 km/h
Humidity76%87%84%
Rainy days21 days26 days21 days
Dry days10 days4 days10 days

Planning a trip to Hainan Dao? Discover the best time to visit

Hainan Dao in September - FAQ

What are the expected maximum and minimum temperatures in Hainan Dao during September?
During September, expect a variety of temperatures with highs around 30° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hainan Dao during September?
Significant rainfall exceeding 422.5 mm is expected in Hainan Dao during September, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hainan Dao during September?
The average wind speed in Hainan Dao during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Hainan Dao in September?

As you prepare for your trip to Hainan Dao in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Hainan Dao, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
    • Insect Repellent: For destinations with mosquitos or other insects

September rainfall patterns in Hainan Dao

Explore the daily rainfall trends and prepare for Hainan Daos September weather 💧

UV exposure in Hainan Dao during September

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

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Location coordinates Where is Hainan Dao?

Get accurate weather forecasts for Hainan Dao, located at latitude 19.2 and longitude 109.7. Stay updated with localized weather information tailored for Hainan Dao.

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