May Weather in Niue NiueDaily high temperatures decrease by 2°F, from 83°F to 81°F, rarely falling below 79°F or exceeding 85°F. Daily low temperatures decrease by 2°F, from 74°F to 72°F, rarely falling below 68°F or exceeding 76°F. For reference, on February 16, the hottest day of the year, temperatures in Niue typically range from 76°F to 86°F, while on August 9, the coldest day of the year, they range from 69°F to 79°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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. CloudsThe month of May in Niue experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 61% to 55%. The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 45% of the time. For reference, on January 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 79%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 61%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Niue, the chance of a wet day over the course of May is very rapidly decreasing, starting the month at 32% and ending it at 24%. For reference, the year's highest daily chance of a wet day is 42% on February 8, and its lowest chance is 13% on June 29. RainfallTo 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 May in Niue is rapidly decreasing, starting the month at 4.1 inches, when it rarely exceeds 7.0 inches or falls below 1.3 inches, and ending the month at 2.5 inches, when it rarely exceeds 5.5 inches or falls below 0.4 inches. SunOver the course of May in Niue, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 20 minutes, implying an average daily decrease of 40 seconds, and weekly decrease of 4 minutes, 42 seconds. The shortest day of the month is May 31, with 11 hours, 3 minutes of daylight and the longest day is May 1, with 11 hours, 24 minutes of daylight. The earliest sunrise of the month in Niue is 6:34 AM on May 1 and the latest sunrise is 11 minutes later at 6:45 AM on May 31. The latest sunset is 5:58 PM on May 1 and the earliest sunset is 9 minutes earlier at 5:48 PM on May 31. Daylight saving time is not observed in Niue during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 5:39 AM and sets 13 hours, 17 minutes later, at 6:56 PM, while on June 20, the shortest day of the year, it rises at 6:51 AM and sets 10 hours, 59 minutes later, at 5:50 PM. 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. MoonThe figure below presents a compact representation of key lunar data for May 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.
HumidityWe 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 Niue is rapidly decreasing during May, falling from 96% to 86% over the course of the month. For reference, on February 22, 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 63% of the time. WindThis 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 Niue is essentially constant during May, remaining within 0.3 miles per hour of 14.7 miles per hour throughout. For reference, on August 10, the windiest day of the year, the daily average wind speed is 15.2 miles per hour, while on March 9, the calmest day of the year, the daily average wind speed is 12.8 miles per hour. The highest daily average wind speed during May is 15.0 miles per hour on May 8. The hourly average wind direction in Niue throughout May is predominantly from the east, with a peak proportion of 64% on May 1. Water TemperatureNiue 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 Niue is essentially constant during May, remaining within 1°F of 80°F throughout. Growing SeasonDefinitions 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 Niue 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. The average accumulated growing degree days in Niue are rapidly increasing during May, increasing by 792°F, from 8,309°F to 9,101°F, over the course of the month. Solar EnergyThis 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 Niue is essentially constant during May, remaining within 0.2 kWh of 4.1 kWh throughout. TopographyFor the purposes of this report, the geographical coordinates of Niue are -19.033 deg latitude, -169.867 deg longitude, and 0 ft elevation. The topography within 2 miles of Niue 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 (0 feet). Within 50 miles is also essentially flat (0 feet). The area within 2 miles of Niue is covered by water (100%), within 10 miles by water (97%), and within 50 miles by water (100%). Data SourcesThis report illustrates the typical weather in Niue, 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 Alofi / Niue page. DisclaimerThe 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. Please review our full terms contained on our Terms of Service page. Other LocationsPlacesAirports |