Guishan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Guishan.
Climate overview of Guishan
Guishan, Taoyuan Municipality, Taiwan, sees big temperature differences between seasons, with July peaking at 33°C (91°F) and January dropping to 19°C (66°F).
With around 1843 mm (73 in) of annual rainfall, Guishan has a notably wet climate. However, this rainfall is not evenly distributed — the city has a distinct rainy season from May to September. The wettest month is August. The most sunshine falls in August, with an average of 6.3 hours of daily sunshine.
Guishan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guishan — and find the best time to visit.
Monthly Temperature in Guishan
Visitors to Guishan can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 33°C (91°F) in July. In January, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).
At night, temperatures range from around 26°C (79°F) in July to 13°C (55°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Guishan
Guishan is known for its substantial rainfall, with annual precipitation reaching 1843 mm (73 in). Guishan can be quite wet during August, receiving approximately 267 mm (11 in) of precipitation over 17 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 88 mm (3.5 in) of precipitation spread across 18 rainy days days. For more details, please visit our Guishan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Guishan
Guishan can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 6.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 2.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Guishan by Month
The relative humidity is high throughout the year in Guishan.
The city experiences its highest humidity in February, reaching 78%. In July, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Guishan
The weather does bring rainfall during this period, between 88 mm (3.5 in) and 129 mm (5.1 in).
Plan accordingly for May, June, July, August, September and October, when conditions bring the heaviest precipitation. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Guishan
What is the best time to visit Guishan?
December typically offers the most optimal weather in Guishan. In contrast, June, July, August and September tend to have less optimal conditions. Guishan has a distinct rainy season from May to September.
What temperatures can I expect in Guishan?
Daytime highs range from 19°C (66°F) in January to 33°C (91°F) in July. Nighttime lows range from 13°C (55°F) to 26°C (79°F). Temperatures vary considerably through the year.
How much rain does Guishan get?
Annual rainfall is around 1843 mm (73 in). August is the wettest month with 267 mm (11 in), while January is the driest with 88 mm (3.5 in).
How sunny is Guishan?
Guishan receives around 1,404 hours of sunshine per year. August is the sunniest month with 188 hours, while January is the cloudiest with just 76 hours.
Guishan 3-Day Forecast
Guishan 3-Day Forecast
Guishan on the map
Guishan is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.