Climate and Average Weather Year Round in Khlong Hat Thailand

In Khlong Hat, the wet season is oppressive and overcast, the dry season is muggy and partly cloudy, and it is hot year round. Over the course of the year, the temperature typically varies from 67°F to 95°F and is rarely below 61°F or above 101°F.

Based on the beach/pool score, the best time of year to visit Khlong Hat for hot-weather activities is from mid November to mid March.

The hot season lasts for 2.3 months, from February 25 to May 1, with an average daily high temperature above 93°F. The hottest month of the year in Khlong Hat is April, with an average high of 95°F and low of 76°F.

The cool season lasts for 6.3 months, from June 17 to December 25, with an average daily high temperature below 88°F. The coldest month of the year in Khlong Hat is December, with an average low of 68°F and high of 87°F.

In Khlong Hat, 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 in Khlong Hat begins around November 5 and lasts for 4.6 months, ending around March 25.

The clearest month of the year in Khlong Hat is January, during which on average the sky is clear, mostly clear, or partly cloudy 54% of the time.

The cloudier part of the year begins around March 25 and lasts for 7.4 months, ending around November 5.

The cloudiest month of the year in Khlong Hat is June, during which on average the sky is overcast or mostly cloudy 92% 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 in Khlong Hat varies very significantly throughout the year.

The wetter season lasts 6.1 months, from April 24 to October 26, with a greater than 37% chance of a given day being a wet day. The month with the most wet days in Khlong Hat is September, with an average of 21.6 days with at least 0.04 inches of precipitation.

The drier season lasts 5.9 months, from October 26 to April 24. The month with the fewest wet days in Khlong Hat is December, with an average of 0.8 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 in Khlong Hat is September, with an average of 21.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 73% on September 7.

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. Khlong Hat experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.9 months, from February 4 to December 1, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Khlong Hat is September, with an average rainfall of 11.1 inches.

The rainless period of the year lasts for 2.1 months, from December 1 to February 4. The month with the least rain in Khlong Hat is December, with an average rainfall of 0.1 inches.

The length of the day in Khlong Hat varies over the course of the year. In 2024, the shortest day is December 21, with 11 hours, 20 minutes of daylight; the longest day is June 21, with 12 hours, 55 minutes of daylight.

The earliest sunrise is at 5:42 AM on June 2, and the latest sunrise is 56 minutes later at 6:38 AM on January 25. The earliest sunset is at 5:40 PM on November 19, and the latest sunset is 1 hour, 2 minutes later at 6:42 PM on July 9.

Daylight saving time (DST) is not observed in Khlong Hat 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.

Khlong Hat experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 10 months, from January 28 to December 10, during which time the comfort level is muggy, oppressive, or miserable at least 54% of the time.

The month with the fewest muggy days in Khlong Hat is January, with 14.2 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 in Khlong Hat experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.5 months, from May 21 to September 6, with average wind speeds of more than 5.8 miles per hour. The windiest month of the year in Khlong Hat is July, with an average hourly wind speed of 6.9 miles per hour.

The calmer time of year lasts for 8.5 months, from September 6 to May 21. The calmest month of the year in Khlong Hat is October, with an average hourly wind speed of 4.8 miles per hour.

The predominant average hourly wind direction in Khlong Hat varies throughout the year.

The wind is most often from the south for 4.1 months, from February 8 to June 10, with a peak percentage of 59% on May 15. The wind is most often from the west for 3.9 months, from June 10 to October 7, with a peak percentage of 66% on August 14. The wind is most often from the north for 2.2 months, from October 23 to December 30, with a peak percentage of 54% on December 3.

Khlong Hat 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 1.8 months, from April 10 to June 4, with an average temperature above 86°F. The month of the year in Khlong Hat with the warmest water is May, with an average temperature of 87°F.

The time of year with cooler water lasts for 2.4 months, from December 8 to February 19, with an average temperature below 83°F. The month of the year in Khlong Hat with the coolest water is January, with an average temperature of 82°F.

To characterize how pleasant the weather is in Khlong Hat 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 Khlong Hat for general outdoor tourist activities is from late November to early February, with a peak score in the third week of December.

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 Khlong Hat for hot-weather activities is from mid November to mid March, with a peak score in the second week of February.

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 in Khlong Hat 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 2.2 months, from January 22 to March 27, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year in Khlong Hat is February, with an average of 5.8 kWh.

The darker period of the year lasts for 5.0 months, from May 12 to October 13, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest month of the year in Khlong Hat is September, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Khlong Hat are 13.452 deg latitude, 102.298 deg longitude, and 492 ft elevation.

The topography within 2 miles of Khlong Hat contains significant variations in elevation, with a maximum elevation change of 528 feet and an average elevation above sea level of 491 feet. Within 10 miles contains significant variations in elevation (1,831 feet). Within 50 miles contains very significant variations in elevation (5,308 feet).

The area within 2 miles of Khlong Hat is covered by cropland (98%), within 10 miles by cropland (96%), and within 50 miles by cropland (61%) and trees (29%).