Climate and Average Weather Year Round at Taiwan Taoyuan International Airport Taiwan

At Taiwan Taoyuan International Airport, the summers are hot, oppressive, and overcast; the winters are cool, windy, and partly cloudy; and it is wet year round. Over the course of the year, the temperature typically varies from 55°F to 91°F and is rarely below 49°F or above 95°F.

Based on the tourism score, the best time of year to visit Taiwan Taoyuan International Airport for warm-weather activities is from early October to early December.

The hot season lasts for 3.4 months, from June 8 to September 20, with an average daily high temperature above 86°F. The hottest month of the year at Taiwan Taoyuan International Airport is July, with an average high of 91°F and low of 79°F.

The cool season lasts for 3.3 months, from December 9 to March 18, with an average daily high temperature below 69°F. The coldest month of the year at Taiwan Taoyuan International Airport is January, with an average low of 56°F and high of 64°F.

At Taiwan Taoyuan International Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Taiwan Taoyuan International Airport begins around September 14 and lasts for 7.5 months, ending around April 28.

The clearest month of the year at Taiwan Taoyuan International Airport is October, during which on average the sky is clear, mostly clear, or partly cloudy 60% of the time.

The cloudier part of the year begins around April 28 and lasts for 4.5 months, ending around September 14.

The cloudiest month of the year at Taiwan Taoyuan International Airport is June, during which on average the sky is overcast or mostly cloudy 80% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Taiwan Taoyuan International Airport varies significantly throughout the year.

The wetter season lasts 6.0 months, from March 20 to September 20, with a greater than 40% chance of a given day being a wet day. The month with the most wet days at Taiwan Taoyuan International Airport is June, with an average of 16.1 days with at least 0.04 inches of precipitation.

The drier season lasts 6.0 months, from September 20 to March 20. The month with the fewest wet days at Taiwan Taoyuan International Airport is December, with an average of 7.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Taiwan Taoyuan International Airport is June, with an average of 16.1 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 59% on June 10.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Taiwan Taoyuan International Airport experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Taiwan Taoyuan International Airport. The month with the most rain at Taiwan Taoyuan International Airport is September, with an average rainfall of 7.5 inches.

The month with the least rain at Taiwan Taoyuan International Airport is January, with an average rainfall of 2.4 inches.

The length of the day at Taiwan Taoyuan International Airport varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 35 minutes of daylight; the longest day is June 21, with 13 hours, 42 minutes of daylight.

The earliest sunrise is at 5:04 AM on June 9, and the latest sunrise is 1 hour, 38 minutes later at 6:42 AM on January 14. The earliest sunset is at 5:04 PM on November 29, and the latest sunset is 1 hour, 44 minutes later at 6:49 PM on July 2.

Daylight saving time (DST) is not observed at Taiwan Taoyuan International Airport during 2024.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Taiwan Taoyuan International Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.8 months, from March 29 to November 22, during which time the comfort level is muggy, oppressive, or miserable at least 26% of the time. The month with the most muggy days at Taiwan Taoyuan International Airport is July, with 31.0 days that are muggy or worse.

The month with the fewest muggy days at Taiwan Taoyuan International Airport is January, with 0.4 days that are muggy or worse.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Taiwan Taoyuan International Airport experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.3 months, from September 10 to March 18, with average wind speeds of more than 11.5 miles per hour. The windiest month of the year at Taiwan Taoyuan International Airport is November, with an average hourly wind speed of 14.8 miles per hour.

The calmer time of year lasts for 5.7 months, from March 18 to September 10. The calmest month of the year at Taiwan Taoyuan International Airport is July, with an average hourly wind speed of 8.4 miles per hour.

The predominant average hourly wind direction at Taiwan Taoyuan International Airport varies throughout the year.

The wind is most often from the west for 1.6 months, from June 8 to July 26, with a peak percentage of 43% on June 25. The wind is most often from the east for 10 months, from July 26 to June 8, with a peak percentage of 54% on January 1.

Taiwan Taoyuan International Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.0 months, from June 2 to October 2, with an average temperature above 79°F. The month of the year at Taiwan Taoyuan International Airport with the warmest water is August, with an average temperature of 83°F.

The time of year with cooler water lasts for 2.9 months, from December 25 to March 21, with an average temperature below 67°F. The month of the year at Taiwan Taoyuan International Airport with the coolest water is February, with an average temperature of 64°F.

To characterize how pleasant the weather is at Taiwan Taoyuan International Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Taiwan Taoyuan International Airport for general outdoor tourist activities is from early October to early December, with a peak score in the last week of October.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Taiwan Taoyuan International Airport for hot-weather activities is from mid September to late October, with a peak score in the first week of October.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures at Taiwan Taoyuan International Airport are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 5.7 months, from April 2 to September 23, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest month of the year at Taiwan Taoyuan International Airport is July, with an average of 5.5 kWh.

The darker period of the year lasts for 2.6 months, from November 19 to February 7, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year at Taiwan Taoyuan International Airport is December, with an average of 2.9 kWh.

For the purposes of this report, the geographical coordinates of Taiwan Taoyuan International Airport are 25.078 deg latitude, 121.233 deg longitude, and 105 ft elevation.

The topography within 2 miles of Taiwan Taoyuan International Airport contains only modest variations in elevation, with a maximum elevation change of 308 feet and an average elevation above sea level of 87 feet. Within 10 miles contains only modest variations in elevation (1,056 feet). Within 50 miles contains very significant variations in elevation (12,812 feet).

The area within 2 miles of Taiwan Taoyuan International Airport is covered by artificial surfaces (57%), sparse vegetation (14%), and bare soil (14%), within 10 miles by water (57%) and artificial surfaces (22%), and within 50 miles by water (73%) and trees (22%).