Average Weather in Nofoali‘i Samoa
The climate in Nofoali‘i is hot, oppressive, windy, and overcast. Over the course of the year, the temperature typically varies from 73°F to 87°F and is rarely below 70°F or above 89°F.
Based on the beach/pool score, the best time of year to visit Nofoali‘i for hot-weather activities is from mid June to late September.
The temperature in Nofoali‘i varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
Average High and Low Temperature
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
In Nofoali‘i, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Nofoali‘i begins around May 24 and lasts for 4.7 months, ending around October 14. On August 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 40% of the time.
The cloudier part of the year begins around October 14 and lasts for 7.3 months, ending around May 24. On January 7, the cloudiest day of the year, the sky is overcast or mostly cloudy 89% of the time, and clear, mostly clear, or partly cloudy 11% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Nofoali‘i varies significantly throughout the year.
The wetter season lasts 7.5 months, from October 9 to May 25, with a greater than 39% chance of a given day being a wet day. The chance of a wet day peaks at 60% on January 7.
The drier season lasts 4.5 months, from May 25 to October 9. The smallest chance of a wet day is 17% on July 29.
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 60% on January 7.
Daily Chance of Precipitation
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. Nofoali‘i experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Nofoali‘i. The most rain falls during the 31 days centered around January 22, with an average total accumulation of 9.1 inches.
The least rain falls around August 4, with an average total accumulation of 1.4 inches.
Average Monthly Rainfall
The length of the day in Nofoali‘i varies over the course of the year. In 2018, the shortest day is June 21, with 11 hours, 19 minutes of daylight; the longest day is December 22, with 12 hours, 57 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:12 AM on September 28, and the latest sunrise is 1 hour, 20 minutes later at 7:32 AM on March 30. The earliest sunset is at 6:06 PM on May 30, and the latest sunset is 1 hour, 57 minutes later at 8:03 PM on January 22.
Daylight saving time (DST) is observed in Nofoali‘i during 2018, starting in the spring on September 30 and ending in the fall on April 1.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Nofoali‘i, 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, staying within 1% of 99% throughout.
Humidity Comfort Levels
The average hourly wind speed in Nofoali‘i experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.2 months, from May 21 to October 27, with average wind speeds of more than 11.9 miles per hour. The windiest day of the year is July 29, with an average hourly wind speed of 14.2 miles per hour.
The calmer time of year lasts for 6.8 months, from October 27 to May 21. The calmest day of the year is March 9, with an average hourly wind speed of 9.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Nofoali‘i is from the east throughout the year.
Nofoali‘i 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 83°F throughout.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Nofoali‘i 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 Nofoali‘i for general outdoor tourist activities is from mid June to mid September, with a peak score in the second week of August.
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 Nofoali‘i for hot-weather activities is from mid June to late September, with a peak score in the third week of August.
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.
Temperatures in Nofoali‘i 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
Growing Degree Days
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 2.2 months, from August 28 to November 2, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest day of the year is September 20, with an average of 6.0 kWh.
The darker period of the year lasts for 3.1 months, from April 4 to July 7, with an average daily incident shortwave energy per square meter below 4.6 kWh. The darkest day of the year is May 29, with an average of 4.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Nofoali‘i are -13.822 deg latitude, -171.959 deg longitude, and 49 ft elevation.
The topography within 2 miles of Nofoali‘i contains only modest variations in elevation, with a maximum elevation change of 423 feet and an average elevation above sea level of 87 feet. Within 10 miles contains only modest variations in elevation (2,769 feet). Within 50 miles contains large variations in elevation (6,083 feet).
The area within 2 miles of Nofoali‘i is covered by water (70%) and trees (28%), within 10 miles by water (65%) and trees (29%), and within 50 miles by water (90%).
This report illustrates the typical weather in Nofoali‘i, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Nofoali‘i.
For each station, the records are corrected for the elevation difference between that station and Nofoali‘i according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Nofoali‘i is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Nofoali‘i and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .