Climate and Average Weather Year Round in Kochi Japan

In Kochi, the summers are warm, oppressive, and mostly cloudy; the winters are cold, windy, and mostly clear; and it is wet year round. Over the course of the year, the temperature typically varies from 34°F to 87°F and is rarely below 27°F or above 91°F.

Based on the tourism score, the best time of year to visit Kochi for warm-weather activities is from early September to mid October.

The hot season lasts for 3.0 months, from June 24 to September 26, with an average daily high temperature above 80°F. The hottest month of the year in Kochi is August, with an average high of 87°F and low of 75°F.

The cool season lasts for 3.2 months, from December 6 to March 13, with an average daily high temperature below 58°F. The coldest month of the year in Kochi is January, with an average low of 34°F and high of 52°F.

In Kochi, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Kochi begins around September 15 and lasts for 6.3 months, ending around March 25.

The clearest month of the year in Kochi is December, during which on average the sky is clear, mostly clear, or partly cloudy 76% of the time.

The cloudier part of the year begins around March 25 and lasts for 5.7 months, ending around September 15.

The cloudiest month of the year in Kochi is June, during which on average the sky is overcast or mostly cloudy 71% 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 Kochi varies significantly throughout the year.

The wetter season lasts 6.3 months, from March 26 to October 2, with a greater than 36% chance of a given day being a wet day. The month with the most wet days in Kochi is June, with an average of 15.2 days with at least 0.04 inches of precipitation.

The drier season lasts 5.7 months, from October 2 to March 26. The month with the fewest wet days in Kochi is January, with an average of 5.1 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 Kochi is June, with an average of 15.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 57% on June 27.

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. Kochi experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Kochi. The month with the most rain in Kochi is June, with an average rainfall of 10.8 inches.

The month with the least rain in Kochi is January, with an average rainfall of 2.1 inches.

The length of the day in Kochi varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 56 minutes of daylight; the longest day is June 21, with 14 hours, 23 minutes of daylight.

The earliest sunrise is at 4:55 AM on June 12, and the latest sunrise is 2 hours, 16 minutes later at 7:10 AM on January 8. The earliest sunset is at 4:57 PM on December 4, and the latest sunset is 2 hours, 23 minutes later at 7:20 PM on June 29.

Daylight saving time (DST) is not observed in Kochi 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.

Kochi experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.2 months, from May 30 to October 4, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Kochi is July, with 29.9 days that are muggy or worse.

The month with the fewest muggy days in Kochi is January, with 0.0 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 Kochi experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.3 months, from November 19 to April 28, with average wind speeds of more than 8.8 miles per hour. The windiest month of the year in Kochi is February, with an average hourly wind speed of 10.2 miles per hour.

The calmer time of year lasts for 6.7 months, from April 28 to November 19. The calmest month of the year in Kochi is July, with an average hourly wind speed of 7.3 miles per hour.

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

The wind is most often from the south for 4.7 months, from April 17 to September 9, with a peak percentage of 45% on July 15. The wind is most often from the north for 7.3 months, from September 9 to April 17, with a peak percentage of 50% on January 1.

Kochi 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 2.8 months, from July 11 to October 4, with an average temperature above 78°F. The month of the year in Kochi with the warmest water is August, with an average temperature of 82°F.

The time of year with cooler water lasts for 4.0 months, from December 26 to April 27, with an average temperature below 66°F. The month of the year in Kochi with the coolest water is February, with an average temperature of 62°F.

To characterize how pleasant the weather is in Kochi 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 Kochi for general outdoor tourist activities is from early September to mid October, with a peak score in the last week of September.

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 Kochi for hot-weather activities is from mid July to early September, with a peak score in the second week of August.

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).

The growing season in Kochi typically lasts for 9.3 months (284 days), from around March 4 to around December 12, rarely starting before February 14 or after March 20, and rarely ending before November 24 or after December 30.

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.

Based on growing degree days alone, the first spring blooms in Kochi should appear around March 8, only rarely appearing before February 24 or after March 21.

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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.5 months, from April 12 to August 29, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year in Kochi is May, with an average of 6.0 kWh.

The darker period of the year lasts for 3.0 months, from November 8 to February 7, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Kochi is December, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Kochi are 33.550 deg latitude, 133.533 deg longitude, and 190 ft elevation.

The topography within 2 miles of Kochi contains very significant variations in elevation, with a maximum elevation change of 1,033 feet and an average elevation above sea level of 112 feet. Within 10 miles contains very significant variations in elevation (3,894 feet). Within 50 miles also contains extreme variations in elevation (6,450 feet).

The area within 2 miles of Kochi is covered by trees (32%), cropland (32%), grassland (17%), and water (14%), within 10 miles by trees (44%) and water (34%), and within 50 miles by water (49%) and trees (46%).