September weather forecast
Hsinchu City, Taiwan

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Weather in September

September marks the onset of the gradual cooling off in Hsinchu City, with temperatures starting to decline from the summer highs. The days still remain significantly warm and humid, mirrored by a corresponding decline in the rainfall. It is during September that one can witness the transition from summer to autumn, amplified by the changing landscapes and soothing sea breezes from the nearby coastline.

Temperature

The arrival of September in Hsinchu City, Taiwan, denotes a barely perceptible change in the average high-temperatures to a still hot 31°C (87.8°F) from August's 32.6°C (90.7°F). Throughout the month of September, Hsinchu City observes an average nighttime temperature of 24.1°C (75.4°F).

Heat index

September's average heat index is estimated at a very hot 39°C (102.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

With an average relative humidity of 75.1%, September is the least humid month.

Rainfall

In Hsinchu City, Taiwan, in September, during 6.8 rainfall days, 95mm (3.74") of precipitation is typically accumulated. Throughout the year, in Hsinchu City, there are 116.6 rainfall days, and 1639mm (64.53") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature in Hsinchu City is 27.5°C (81.5°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In September, the average length of the day in Hsinchu City is 12h and 18min.
On the first day of September, sunrise is at 05:37 and sunset at 18:14. On the last day of the month, sunrise is at 05:47 and sunset at 17:44 CST.

Sunshine

In September, the average sunshine in Hsinchu City is 6.9h.
Updated: Feb 5, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is it in Hsinchu City in September?

In Hsinchu City, 31°C (87.8°F) is the average high-temperature and 24.1°C (75.4°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 39°C (102.2°F).

What is the least humid month in Hsinchu City?

The least humid month is September, with an average relative humidity of 75.1%.

What is the average humidity in September in Hsinchu City?

In Hsinchu City, the average relative humidity in September is 75.1%.

How many days does it rain in September in Hsinchu City?

In Hsinchu City, Taiwan, in September, during 6.8 rainfall days, 95mm (3.74") of precipitation is typically accumulated.

How warm is the water in September in Hsinchu City?

In Hsinchu City, in September, the average water temperature is 27.5°C (81.5°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Hsinchu City have in September?

In September, the average day length is 12h and 18min.

When is the sunrise / sunset in September in Hsinchu City?

In September, on the first day of the month, sunrise is at 05:37 and sunset at 18:14. On the last day of the month, sunrise is at 05:47 and sunset at 17:44 CST.

How many hours of sunshine does Hsinchu City have in September?

The average sunshine duration in September in Hsinchu City, Taiwan, is 6.9h.

Average temperature in September
Hsinchu City, Taiwan

Average temperature in September - Hsinchu City, Taiwan
  • Average high temperature in September: 31°C

The warmest month (with the highest average high temperature) is July (32.9°C).
The month with the lowest average high temperature is January (18.9°C).

  • Average low temperature in September: 24.1°C

The month with the highest average low temperature is July (25.7°C).
The coldest month (with the lowest average low temperature) is January (12.9°C).

Average humidity in September
Hsinchu City, Taiwan

Average humidity in September - Hsinchu City, Taiwan
  • Average humidity in September: 75.1%

The month with the highest relative humidity is March (83.1%).
The month with the lowest relative humidity is September (75.1%).

Average rainfall in September
Hsinchu City, Taiwan

Average rainfall in September - Hsinchu City, Taiwan
  • Average rainfall in September: 95.1mm

The wettest month (with the highest rainfall) is June (266.1mm).
The driest month (with the least rainfall) is November (35.6mm).

Average rainfall days in September
Hsinchu City, Taiwan

Average rainfall days in September - Hsinchu City, Taiwan
  • Average rainfall days in September: 6.8 days

The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is November (4.6 days).

Average sea temperature in September
Hsinchu City, Taiwan

Average sea temperature in September - Hsinchu City, Taiwan
  • Average sea temperature in September: 27.5°C

The best month for swimming (with the highest average sea temperature) is August (28.8°C).
The coldest month (with the lowest average sea temperature) is February (18.4°C).

Average daylight in September /
Average sunshine in September
Hsinchu City, Taiwan

Average daylight in September / Average sunshine in September - Hsinchu City, Taiwan
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 6h and 5min

The month with the most sunshine is July (Average sunshine: 7h and 24min).
The month with the least sunshine is March (Average sunshine: 2h and 42min).

Hsinchu City, Taiwan

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