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Average Weather in Ratnagiri India

In Ratnagiri, the wet season is warm, oppressive, windy, and overcast and the dry season is hot, muggy, and mostly clear. Over the course of the year, the temperature typically varies from 72°F to 91°F and is rarely below 69°F or above 95°F.

Based on the beach/pool score, the best time of year to visit Ratnagiri for hot-weather activities is from late November to early April.

Climate Summary

hotwarmhotJanFebMarAprMayJunJulAugSepOctNovDec79%79%14%14%clearovercastprecipitation: 24.9 inprecipitation: 24.9 in0.0 in0.0 inmuggy: 100%muggy: 100%29%29%beach/pool score: 8.6beach/pool score: 8.63.03.0
Click on each chart for more information.

Temperature

The hot season lasts for 2.5 months, from March 14 to May 29, with an average daily high temperature above 89°F. The hottest day of the year is April 19, with an average high of 91°F and low of 79°F.

The cool season lasts for 2.5 months, from July 1 to September 17, with an average daily high temperature below 84°F. The coldest day of the year is January 8, with an average low of 72°F and high of 85°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in RatnagiriJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcomfortablewarmhothotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Dasmariñas, Philippines (3,170 miles away) is the far-away foreign place with temperatures most similar to Ratnagiri (view comparison).

Clouds

In Ratnagiri, 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 Ratnagiri begins around October 21 and lasts for 6.8 months, ending around May 15. On February 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.

The cloudier part of the year begins around May 15 and lasts for 5.2 months, ending around October 21. On July 23, the cloudiest day of the year, the sky is overcast or mostly cloudy 86% of the time, and clear, mostly clear, or partly cloudy 14% of the time.

Cloud Cover Categories

Cloud Cover Categories in RatnagiriclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 2379%Feb 2379%Jul 2314%Jul 2314%Oct 2146%Oct 2146%May 1546%May 1546%clearovercastpartly cloudymostly clearmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Ratnagiri varies very significantly throughout the year.

The wetter season lasts 3.9 months, from June 1 to September 29, with a greater than 42% chance of a given day being a wet day. The chance of a wet day peaks at 84% on July 13.

The drier season lasts 8.1 months, from September 29 to June 1. The smallest chance of a wet day is 0% on January 24.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 84% on July 13.

Daily Chance of Precipitation

Daily Chance of Precipitation in RatnagiriwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 1384%Jul 1384%Jan 240%Jan 240%Jan 11%Jan 11%Jun 142%Jun 142%Sep 2942%Sep 2942%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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. Ratnagiri experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.5 months, from May 2 to November 17, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 8, with an average total accumulation of 24.9 inches.

The rainless period of the year lasts for 5.5 months, from November 17 to May 2. The least rain falls around January 29, with an average total accumulation of 0.0 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Ratnagiri varies over the course of the year. In 2018, the shortest day is December 22, with 11 hours, 7 minutes of daylight; the longest day is June 21, with 13 hours, 9 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in RatnagiriJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2013 hr, 9 minJun 2113 hr, 9 minJun 2112 hr, 8 minSep 2312 hr, 8 minSep 2311 hr, 7 minDec 2211 hr, 7 minDec 22nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:02 AM on June 4, and the latest sunrise is 1 hour, 7 minutes later at 7:09 AM on January 20. The earliest sunset is at 6:00 PM on November 23, and the latest sunset is 1 hour, 14 minutes later at 7:14 PM on July 6.

Daylight saving time (DST) is not observed in Ratnagiri during 2018.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in RatnagiriJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 46:02 AMJun 46:02 AM7:14 PMJul 67:14 PMJul 6Nov 236:00 PMNov 236:00 PM7:09 AMJan 207:09 AMJan 20daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

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.

Ratnagiri experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.3 months, from February 26 to December 3, during which time the comfort level is muggy, oppressive, or miserable at least 47% of the time. The muggiest day of the year is August 2, with muggy conditions 100% of the time.

The least muggy day of the year is January 21, with muggy conditions 29% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in RatnagirimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 2129%Jan 2129%100%Aug 2100%Aug 2Feb 2647%Feb 2647%Dec 347%Dec 347%miserablemiserableoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

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 Ratnagiri experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 2.9 months, from June 3 to September 1, with average wind speeds of more than 11.5 miles per hour. The windiest day of the year is July 23, with an average hourly wind speed of 15.4 miles per hour.

The calmer time of year lasts for 9.1 months, from September 1 to June 3. The calmest day of the year is October 21, with an average hourly wind speed of 7.6 miles per hour.

Average Wind Speed

Average Wind Speed in RatnagiriwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mph20 mphJul 2315.4 mphJul 2315.4 mphOct 217.6 mphOct 217.6 mphJun 311.5 mphJun 311.5 mphSep 111.5 mphSep 111.5 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the west for 6.3 months, from April 3 to October 11, with a peak percentage of 99% on August 1. The wind is most often from the north for 1.9 weeks, from October 11 to October 24 and for 3.4 months, from December 22 to April 3, with a peak percentage of 37% on October 23. The wind is most often from the east for 1.9 months, from October 24 to December 22, with a peak percentage of 50% on December 4.

Wind Direction

Wind Direction in RatnagiriNWNEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westeastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Ratnagiri 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 1.5 months, from May 2 to June 18, with an average temperature above 85°F. The day of the year with the warmest water is May 26, with an average temperature of 85°F.

The time of year with cooler water lasts for 2.7 months, from December 22 to March 13, with an average temperature below 82°F. The day of the year with the coolest water is January 28, with an average temperature of 81°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in Ratnagiri 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 Ratnagiri for general outdoor tourist activities is from mid December to late February, with a peak score in the second week of January.

Tourism Score

Tourism Score in Ratnagiribest timeJanFebMarAprMayJunJulAugSepOctNovDec02468107.57.51.51.5 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Ratnagiri for hot-weather activities is from late November to early April, with a peak score in the third week of February.

Beach/Pool Score

Beach/Pool Score in Ratnagiribest timeJanFebMarAprMayJunJulAugSepOctNovDec02468108.68.63.03.0 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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.

Growing Season

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 Ratnagiri 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.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in RatnagiriJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 3100%Jul 3comfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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.

Growing Degree Days

Growing Degree Days in RatnagiriJanFebMarAprMayJunJulAugSepOctNovDec0°F2,000°F4,000°F6,000°F8,000°F10,000°FJan 490°FJan 490°FDec 3111,282°FDec 3111,282°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 2.7 months, from February 21 to May 11, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest day of the year is March 30, with an average of 7.0 kWh.

The darker period of the year lasts for 2.2 months, from June 6 to August 14, with an average daily incident shortwave energy per square meter below 5.2 kWh. The darkest day of the year is June 26, with an average of 4.7 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in RatnagiribrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWhMar 307.0 kWhMar 307.0 kWhJun 264.7 kWhJun 264.7 kWhMay 116.5 kWhMay 116.5 kWhAug 145.2 kWhAug 145.2 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Ratnagiri are 16.992 deg latitude, 73.310 deg longitude, and 121 ft elevation.

The topography within 2 miles of Ratnagiri contains only modest variations in elevation, with a maximum elevation change of 443 feet and an average elevation above sea level of 164 feet. Within 10 miles contains only modest variations in elevation (997 feet). Within 50 miles contains very significant variations in elevation (3,707 feet).

The area within 2 miles of Ratnagiri is covered by cropland (38%), water (20%), grassland (13%), and trees (12%), within 10 miles by water (45%) and cropland (34%), and within 50 miles by water (52%) and cropland (30%).

Data Sources

This report illustrates the typical weather in Ratnagiri, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Belgaum Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Ratnagiri.

At a distance of 188 kilometers from Ratnagiri, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .

The weight assigned to the MERRA-2 value depends on the distance from Ratnagiri to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 43%, making the weight assigned to the weather station 57%.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.