Climate Insights for Hsinchu

The climate in Hsinchu is warm and mild. The average annual temperature is 21°C and approximately 2375mm of precipitation falls per year. September is the wettest month, receiving around 594mm of rainfall. Hsinchu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are February, January, March, when temperatures can drop to 10°C. Light snow can occur between January and January.

Temperatures in Hsinchu vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 10°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between March and April, with a 6°C shift in average temperatures.

Hsinchu is a very wet location, receiving approximately 2375mm of precipitation annually, which averages out to around 198mm per month. The wettest month is September, averaging 594mm of rainfall. October and August also tend to see above-average precipitation. The driest month is December, with just 24mm. That's 570mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and January, totalling around 9cm annually. January is the snowiest month with approximately 8cm.

Hsinchu is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 3km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in Hsinchu, which began on June 21, 2026. Hsinchu is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in February near 10°C. Autumn is next, beginning on September 23, 2026 — 63 days from now.

The best time to visit Hsinchu is during November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 56mm per month. By contrast, July can be uncomfortably hot with highs reaching 31°C, while February is the coldest period with lows dropping to 10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Hsinchu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.