Climate and Average Weather Year Round in Kotanopan Indonesia

The climate in Kotanopan is warm, oppressive, and overcast. Over the course of the year, the temperature typically varies from 63°F to 82°F and is rarely below 61°F or above 84°F.

Based on the tourism score, the best times of year to visit Kotanopan for warm-weather activities are from early January to late February and from mid May to mid August.

The temperature in Kotanopan varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

The clearest month of the year in Kotanopan is January, during which on average the sky is clear, mostly clear, or partly cloudy 13% of the time.

The cloudiest month of the year in Kotanopan is October, during which on average the sky is overcast or mostly cloudy 93% 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 Kotanopan varies significantly throughout the year.

The wetter season lasts 7.0 months, from September 24 to April 26, with a greater than 54% chance of a given day being a wet day. The month with the most wet days in Kotanopan is November, with an average of 20.4 days with at least 0.04 inches of precipitation.

The drier season lasts 5.0 months, from April 26 to September 24. The month with the fewest wet days in Kotanopan is June, with an average of 11.3 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 in Kotanopan is November, with an average of 20.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 71% on November 13.

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. Kotanopan experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Kotanopan. The month with the most rain in Kotanopan is November, with an average rainfall of 17.2 inches.

The month with the least rain in Kotanopan is June, with an average rainfall of 7.4 inches.

The length of the day in Kotanopan does not vary substantially over the course of the year, staying within 9 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 12 hours, 5 minutes of daylight; the longest day is June 21, with 12 hours, 10 minutes of daylight.

The earliest sunrise is at 6:01 AM on November 1, and the latest sunrise is 31 minutes later at 6:32 AM on February 12. The earliest sunset is at 6:07 PM on November 3, and the latest sunset is 31 minutes later at 6:38 PM on February 12.

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

The perceived humidity level in Kotanopan, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 100% throughout.

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 Kotanopan does not vary significantly over the course of the year, remaining within 0.2 miles per hour of 2.1 miles per hour throughout.

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

The wind is most often from the east for 2.6 weeks, from January 14 to February 1, with a peak percentage of 37% on January 27. The wind is most often from the west for 11 months, from February 1 to January 14, with a peak percentage of 39% on January 1.

Kotanopan 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 does not vary significantly over the course of the year, remaining within 1°F of 85°F throughout.

To characterize how pleasant the weather is in Kotanopan 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 times of year to visit Kotanopan for general outdoor tourist activities are from early January to late February and from mid May to mid August, with a peak score in the third week of June.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Kotanopan for hot-weather activities are from early January to early March and from early April to early July, with a peak score in the last week of May.

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 Kotanopan 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.

For the purposes of this report, the geographical coordinates of Kotanopan are 0.668 deg latitude, 99.709 deg longitude, and 1,437 ft elevation.

The topography within 2 miles of Kotanopan contains very significant variations in elevation, with a maximum elevation change of 1,634 feet and an average elevation above sea level of 1,882 feet. Within 10 miles contains very significant variations in elevation (5,269 feet). Within 50 miles also contains extreme variations in elevation (9,501 feet).

The area within 2 miles of Kotanopan is covered by trees (54%) and cropland (36%), within 10 miles by trees (70%) and cropland (23%), and within 50 miles by trees (62%) and cropland (21%).