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June Weather in Neiafu Tonga

Daily high temperatures are around 80°F, rarely falling below 76°F or exceeding 83°F.

Daily low temperatures are around 73°F, rarely falling below 69°F or exceeding 76°F.

For reference, on February 15, the hottest day of the year, temperatures in Neiafu typically range from 77°F to 85°F, while on July 15, the coldest day of the year, they range from 71°F to 79°F.

Average High and Low Temperature in June in Neiafu

Average High and Low Temperature in June in NeiafuJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303068°F68°F70°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°FMayJulJun 180°FJun 180°F73°F73°FJun 3079°FJun 3079°F72°F72°FJun 1180°FJun 1180°F73°F73°FJun 2179°FJun 2179°F72°F72°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 temperatures for the quarter of the year centered on June. 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 June in Neiafu

Average Hourly Temperature in June in NeiafuJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMayJulcomfortablecomfortablewarm
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 month of June in Neiafu experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 56% to 47%.

The clearest day of the month is June 30, with clear, mostly clear, or partly cloudy conditions 53% of the time.

For reference, on January 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 80%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 59%.

Cloud Cover Categories in June in Neiafu

Cloud Cover Categories in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MayJulJun 144%Jun 144%Jun 3053%Jun 3053%Jun 1147%Jun 1147%Jun 2151%Jun 2151%clearmostly clearpartly cloudymostly cloudyovercast
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 Neiafu, the chance of a wet day over the course of June is very rapidly decreasing, starting the month at 25% and ending it at 14%.

For reference, the year's highest daily chance of a wet day is 43% on February 21, and its lowest chance is 13% on July 6.

Probability of Precipitation in June in Neiafu

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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during June in Neiafu is rapidly decreasing, starting the month at 3.3 inches, when it rarely exceeds 6.4 inches or falls below 0.6 inches, and ending the month at 1.8 inches, when it rarely exceeds 4.0 inches or falls below 0.2 inches.

Average Monthly Rainfall in June in Neiafu

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 June in Neiafu, the length of the day is essentially constant. The shortest day of the month is June 20, with 11 hours, 1 minute of daylight and the longest day is June 1, with 11 hours, 4 minutes of daylight.

Hours of Daylight and Twilight in June in Neiafu

Hours of Daylight and Twilight in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMayJulJun 2111 hr, 1 minJun 2111 hr, 1 mindaydaydaydaynightJun 111 hr, 4 minJun 111 hr, 4 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 month in Neiafu is 7:01 AM on June 1 and the latest sunrise is 7 minutes later at 7:09 AM on June 30.

The earliest sunset is 6:06 PM on June 4 and the latest sunset is 5 minutes later at 6:10 PM on June 30.

Daylight saving time is not observed in Neiafu during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:56 AM and sets 13 hours, 15 minutes later, at 7:12 PM, while on June 20, the shortest day of the year, it rises at 7:07 AM and sets 11 hours, 1 minute later, at 6:08 PM.

Sunrise & Sunset with Twilight in June in Neiafu

Sunrise & Sunset with Twilight in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMayJul7:01 AM7:01 AMJun 16:06 PMJun 16:06 PM7:09 AM7:09 AMJun 306:10 PMJun 306:10 PM7:05 AM7:05 AMJun 116:06 PMJun 116:06 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of June. 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 June in Neiafu

Solar Elevation and Azimuth in June in NeiafuJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMayJul
northeastsouthwest
Solar elevation and azimuth over the course of June 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 June 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 June in Neiafu

Moon Rise, Set & Phases in June in NeiafuJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMayJulMay 84:23 PMMay 84:23 PMMay 242:54 AMMay 242:54 AMJun 71:38 AMJun 71:38 AMJun 222:09 PMJun 222:09 PMJul 611:58 AMJul 611:58 AMJul 2111:18 PMJul 2111:18 PM6:31 AM6:31 AM6:04 PM6:04 PM5:37 PM5:37 PM7:15 AM7:15 AM7:27 AM7:27 AM6:31 PM6:31 PM6:05 PM6:05 PM8:02 AM8:02 AM7:13 AM7:13 AM6:17 PM6:17 PM5:56 PM5:56 PM7:40 AM7:40 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.
Jun 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
38%1:20 AME1:55 PMW-7:39 AMN229,269 mi
2
27%2:18 AME2:33 PMW-8:26 AMN228,789 mi
3
17%3:17 AME3:13 PMWNW-9:15 AMN228,804 mi
4
9%4:17 AMENE3:55 PMWNW-10:05 AMN229,409 mi
5
3%5:19 AMENE4:42 PMWNW-11:00 AMN230,664 mi
6
0%6:23 AMENE5:34 PMWNW-11:58 AMN232,570 mi
7
0%7:27 AMENE6:31 PMWNW-12:59 PMN235,047 mi
8
3%8:28 AMENE7:30 PMWNW-1:59 PMN237,932 mi
9
8%9:24 AMENE8:30 PMWNW-2:57 PMN241,004 mi
10
14%10:13 AMENE9:28 PMWNW-3:51 PMN244,009 mi
11
22%10:57 AMENE10:22 PMWNW-4:40 PMN246,704 mi
12
31%11:35 AMENE11:14 PMWNW-5:24 PMN248,874 mi
13
41%12:09 PMENE--6:06 PMN250,355 mi
14
50%-12:02 AMW12:41 PME6:45 PMN251,040 mi
15
60%-12:50 AMW1:12 PME7:23 PMN250,889 mi
16
69%-1:37 AMW1:43 PME8:02 PMN249,924 mi
17
78%-2:24 AMW2:16 PMESE8:43 PMN248,235 mi
18
86%-3:14 AMWSW2:51 PMESE9:27 PMN245,963 mi
19
92%-4:07 AMWSW3:31 PMESE10:15 PMS243,294 mi
20
97%-5:03 AMWSW4:16 PMESE11:07 PMS240,441 mi
21
99%-6:02 AMWSW5:07 PMESE--
22
100%-7:03 AMWSW6:05 PMESE12:04 AMS237,630 mi
23
100%-8:02 AMWSW7:08 PMESE1:04 AMS235,067 mi
24
97%-8:58 AMWSW8:12 PMESE2:04 AMS232,916 mi
25
92%-9:49 AMWSW9:15 PMESE3:03 AMS231,277 mi
26
85%-10:35 AMWSW10:17 PMESE3:57 AMN230,181 mi
27
75%-11:16 AMW11:16 PME4:48 AMN229,599 mi
28
64%-11:55 AMW-5:37 AMN229,474 mi
29
50%12:13 AME12:33 PMW-6:24 AMN229,742 mi
30
41%1:11 AME1:12 PMW-7:11 AMN230,353 mi

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 Neiafu is rapidly decreasing during June, falling from 91% to 76% over the course of the month.

For reference, on January 30, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 21, the least muggy day of the year, there are muggy conditions 68% of the time.

Humidity Comfort Levels in June in Neiafu

Humidity Comfort Levels in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MayJulJun 191%Jun 191%Jun 3076%Jun 3076%Jun 1188%Jun 1188%Jun 2182%Jun 2182%miserablemiserableoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortable
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 Neiafu is essentially constant during June, remaining within 0.2 miles per hour of 14.7 miles per hour throughout.

For reference, on August 9, the windiest day of the year, the daily average wind speed is 15.3 miles per hour, while on March 7, the calmest day of the year, the daily average wind speed is 12.6 miles per hour.

The lowest daily average wind speed during June is 14.5 miles per hour on June 27.

Average Wind Speed in June in Neiafu

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 Neiafu throughout June is predominantly from the east, with a peak proportion of 66% on June 1.

Wind Direction in June in Neiafu

Wind Direction in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MayJulsoutheastnorthwest
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).

Neiafu 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 Neiafu is essentially constant during June, remaining within 1°F of 79°F throughout.

Average Water Temperature in June in Neiafu

Average Water Temperature in June in NeiafuJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303075°F75°F76°F76°F77°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°FMayJulJun 179°FJun 179°FJun 3078°FJun 3078°FJun 1179°FJun 1179°FJun 2179°FJun 2179°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 Neiafu 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 June in Neiafu

Time Spent in Various Temperature Bands and the Growing Season in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MayJul100%Jun 16100%Jun 16100%Jul 2100%Jul 2comfortablewarm
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 Neiafu are rapidly increasing during June, increasing by 749°F, from 9,382°F to 10,130°F, over the course of the month.

Growing Degree Days in June in Neiafu

Growing Degree Days in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930309,200°F9,200°F9,400°F9,400°F9,600°F9,600°F9,800°F9,800°F10,000°F10,000°F10,200°F10,200°F10,400°F10,400°FMayJulJun 19,382°FJun 19,382°FJun 3010,130°FJun 3010,130°FJun 119,641°FJun 119,641°FJun 219,900°FJun 219,900°F
The average growing degree days accumulated over the course of June, 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 Neiafu is essentially constant during June, remaining within 0.1 kWh of 3.9 kWh throughout.

The lowest average daily incident shortwave solar energy during June is 3.8 kWh on June 10.

Average Daily Incident Shortwave Solar Energy in June in Neiafu

Average Daily Incident Shortwave Solar Energy in June in NeiafuJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh6.0 kWh6.0 kWhMayJulJun 103.8 kWhJun 103.8 kWhJun 304.0 kWhJun 304.0 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 Neiafu are -18.651 deg latitude, -173.984 deg longitude, and 0 ft elevation.

The topography within 2 miles of Neiafu contains only modest variations in elevation, with a maximum elevation change of 423 feet and an average elevation above sea level of 15 feet. Within 10 miles contains only modest variations in elevation (725 feet). Within 50 miles contains significant variations in elevation (1,634 feet).

The area within 2 miles of Neiafu is covered by water (81%) and trees (16%), within 10 miles by water (92%), and within 50 miles by water (100%).

This report illustrates the typical weather in Neiafu, 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, Vava'u International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Neiafu.

At a distance of 8 kilometers from Neiafu, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Neiafu according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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.

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