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Summer Weather in Kiribati Kiribati

Daily high temperatures are around 86°F, rarely falling below 84°F or exceeding 88°F. The highest daily average high temperature is 86°F on June 13.

Daily low temperatures are around 78°F, rarely falling below 76°F or exceeding 80°F. The highest daily average low temperature is 78°F on June 24.

For reference, on June 7, the hottest day of the year, temperatures in Kiribati typically range from 78°F to 86°F, while on February 5, the coldest day of the year, they range from 77°F to 84°F.

Average High and Low Temperature in the Summer in Kiribati

Average High and Low Temperature in the Summer in KiribatiJunJulAug74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°F96°F96°FSpringFallJun 786°FJun 786°F78°F78°FAug 3186°FAug 3186°F78°F78°FJul 186°FJul 186°F78°F78°FAug 186°FAug 186°F78°F78°F
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 hourly average summer temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in the Summer in Kiribati

Average Hourly Temperature in the Summer in KiribatiJunJulAug12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFallwarmwarmhot
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.
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The summer in Kiribati experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 44% to 35%. The lowest chance of overcast or mostly cloudy conditions is 34% on August 25.

The clearest day of the summer is August 25, with clear, mostly clear, or partly cloudy conditions 66% of the time.

For reference, on April 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on August 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.

Cloud Cover Categories in the Summer in Kiribati

Cloud Cover Categories in the Summer in KiribatiJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallApr 2044%Apr 2044%Jun 156%Jun 156%Aug 3165%Aug 3165%Jul 157%Jul 157%Aug 163%Aug 163%clearmostly clearpartly cloudyovercastmostly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Kiribati, the chance of a wet day over the course of the summer is very rapidly decreasing, starting the season at 22% and ending it at 6%.

For reference, the year's highest daily chance of a wet day is 34% on April 18, and its lowest chance is 6% on September 6.

Probability of Precipitation in the Summer in Kiribati

Probability of Precipitation in the Summer in KiribatiJunJulAug0%0%5%5%10%10%15%15%20%20%25%25%30%30%SpringFallJun 122%Jun 122%Aug 316%Aug 316%Jul 116%Jul 116%Aug 19%Aug 19%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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Kiribati is rapidly decreasing, starting the season at 2.1 inches, when it rarely exceeds 6.3 inches or falls below 0.1 inches, and ending the season at 0.8 inches, when it rarely exceeds 2.4 inches or falls below -0.0 inches.

Average Monthly Rainfall in the Summer in Kiribati

Average Monthly Rainfall in the Summer in KiribatiJunJulAug0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inSpringFallJun 12.1 inJun 12.1 inAug 310.8 inAug 310.8 inJul 11.6 inJul 11.6 inAug 11.1 inAug 11.1 in
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 snowfall.

Over the course of the summer in Kiribati, the length of the day is essentially constant. The shortest day of the summer is August 31, with 12 hours, 8 minutes of daylight and the longest day is June 20, with 12 hours, 12 minutes of daylight.

Hours of Daylight and Twilight in the Summer in Kiribati

Hours of Daylight and Twilight in the Summer in KiribatiJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallJun 2112 hr, 12 minJun 2112 hr, 12 minnightnightdaydayAug 3112 hr, 8 minAug 3112 hr, 8 minAug 112 hr, 11 minAug 112 hr, 11 min
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 of the summer in Kiribati is 8:19 AM on June 1 and the latest sunrise is 9 minutes later at 8:29 AM on July 29.

The earliest sunset is 8:31 PM on June 1 and the latest sunset is 8 minutes later at 8:40 PM on July 23.

Daylight saving time is not observed in Kiribati during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 8:23 AM and sets 12 hours, 12 minutes later, at 8:35 PM, while on December 21, the shortest day of the year, it rises at 8:24 AM and sets 12 hours, 3 minutes later, at 8:27 PM.

Sunrise & Sunset with Twilight in the Summer in Kiribati

Sunrise & Sunset with Twilight in the Summer in KiribatiJunJulAug4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMSpringFall8:19 AM8:19 AMJun 18:31 PMJun 18:31 PM8:28 AM8:28 AMJul 238:40 PMJul 238:40 PM8:24 AM8:24 AMAug 318:32 PMAug 318:32 PM8:25 AM8:25 AMJul 18:38 PMJul 18:38 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. 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.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in the Summer in Kiribati

Solar Elevation and Azimuth in the Summer in KiribatiJunJulAug12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall0010202030304050506060708000101020303040405060607070
northeastsouthwest
Solar elevation and azimuth in the the summer of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the summer of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Summer in Kiribati

Moon Rise, Set & Phases in the Summer in KiribatiJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 85:23 PMMay 85:23 PMMay 243:54 AMMay 243:54 AMJun 72:38 AMJun 72:38 AMJun 223:09 PMJun 223:09 PMJul 612:58 PMJul 612:58 PMJul 2212:18 AMJul 2212:18 AMAug 51:14 AMAug 51:14 AMAug 208:26 AMAug 208:26 AMSep 33:56 PMSep 33:56 PMSep 184:35 PMSep 184:35 PM7:58 AM7:58 AM8:30 PM8:30 PM8:07 PM8:07 PM8:28 AM8:28 AM8:36 AM8:36 AM9:12 PM9:12 PM8:46 PM8:46 PM9:10 AM9:10 AM8:56 PM8:56 PM8:32 PM8:32 PM8:56 AM8:56 AM8:32 PM8:32 PM8:11 PM8:11 PM8:34 AM8:34 AM8:17 AM8:17 AM8:39 PM8:39 PM8:32 PM8:32 PM8:57 AM8:57 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 chance that a given day will be muggy in Kiribati is essentially constant during the summer, remaining around 100% throughout.

Humidity Comfort Levels in the Summer in Kiribati

Humidity Comfort Levels in the Summer in KiribatiJunJulAug0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallJun 1100%Jun 1100%Aug 31100%Aug 31100%Jul 1100%Jul 1100%Aug 1100%Aug 1100%miserablemiserableoppressiveoppressivemuggymuggy
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.

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 Kiribati is increasing during the summer, increasing from 12.0 miles per hour to 13.4 miles per hour over the course of the season.

For reference, on January 12, the windiest day of the year, the daily average wind speed is 15.3 miles per hour, while on May 22, the calmest day of the year, the daily average wind speed is 11.9 miles per hour.

The highest daily average wind speed during the summer is 13.8 miles per hour on August 4.

Average Wind Speed in the Summer in Kiribati

Average Wind Speed in the Summer in KiribatiJunJulAug0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphSpringFallAug 413.8 mphAug 413.8 mphJun 112.0 mphJun 112.0 mphAug 3113.4 mphAug 3113.4 mphJul 112.7 mphJul 112.7 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Kiribati throughout the summer is predominantly from the east, with a peak proportion of 93% on July 25.

Wind Direction in the Summer in Kiribati

Wind Direction in the Summer in KiribatiJunJulAug0%100%20%80%40%60%60%40%80%20%100%0%SpringFalleastsouth
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).

Kiribati 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 surface water temperature in Kiribati is essentially constant during the summer, remaining around 82°F throughout.

The highest average surface water temperature during the summer is 82°F on June 11.

Average Water Temperature in the Summer in Kiribati

Average Water Temperature in the Summer in KiribatiJunJulAug79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FSpringFallJun 1182°FJun 1182°FAug 3182°FAug 3182°FJul 182°FJul 182°FAug 182°FAug 182°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Kiribati 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 in the Summer in Kiribati

Time Spent in Various Temperature Bands and the Growing Season in the Summer in KiribatiJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jul 17100%Jul 17warmhot
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.

The average accumulated growing degree days in Kiribati are very rapidly increasing during the summer, increasing by 2,837°F, from 4,637°F to 7,474°F, over the course of the season.

Growing Degree Days in the Summer in Kiribati

Growing Degree Days in the Summer in KiribatiJunJulAug4,500°F4,500°F5,000°F5,000°F5,500°F5,500°F6,000°F6,000°F6,500°F6,500°F7,000°F7,000°F7,500°F7,500°FSpringFallJun 14,637°FJun 14,637°FAug 317,474°FAug 317,474°FJul 15,576°FJul 15,576°FAug 16,541°FAug 16,541°F
The average growing degree days accumulated over the course of the summer, with 25th to 75th and 10th to 90th percentile bands.

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 in Kiribati is gradually increasing during the summer, rising by 0.9 kWh, from 6.1 kWh to 7.0 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Summer in Kiribati

Average Daily Incident Shortwave Solar Energy in the Summer in KiribatiJunJulAug0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSpringFallJun 16.1 kWhJun 16.1 kWhAug 317.0 kWhAug 317.0 kWhJul 16.2 kWhJul 16.2 kWhAug 16.6 kWhAug 16.6 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.

For the purposes of this report, the geographical coordinates of Kiribati are 1.421 deg latitude, 172.984 deg longitude, and 20 ft elevation.

The topography within 2 miles of Kiribati is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (62 feet). Within 50 miles is also essentially flat (92 feet).

The area within 2 miles of Kiribati is covered by water (100%), within 10 miles by water (100%), and within 50 miles by water (100%).

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

The details of the data sources used for this report can be found on the Cassidy International Airport page.

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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.

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