Climate and Average Weather Year Round in Balfour South Africa

In Balfour, the summers are long, warm, and partly cloudy and the winters are short, cold, dry, and clear. Over the course of the year, the temperature typically varies from 31°F to 78°F and is rarely below 25°F or above 85°F.

Based on the tourism score, the best times of year to visit Balfour for warm-weather activities are from early September to late October and from mid December to mid April.

The warm season lasts for 5.8 months, from September 24 to March 18, with an average daily high temperature above 75°F. The hottest month of the year in Balfour is January, with an average high of 78°F and low of 57°F.

The cold season lasts for 2.1 months, from May 28 to July 31, with an average daily high temperature below 65°F. The coldest month of the year in Balfour is July, with an average low of 31°F and high of 63°F.

In Balfour, 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 Balfour begins around March 27 and lasts for 6.3 months, ending around October 4.

The clearest month of the year in Balfour is July, during which on average the sky is clear, mostly clear, or partly cloudy 89% of the time.

The cloudier part of the year begins around October 4 and lasts for 5.7 months, ending around March 27.

The cloudiest month of the year in Balfour is November, during which on average the sky is overcast or mostly cloudy 36% of the time.

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

The wetter season lasts 5.4 months, from October 11 to March 22, with a greater than 27% chance of a given day being a wet day. The month with the most wet days in Balfour is December, with an average of 15.8 days with at least 0.04 inches of precipitation.

The drier season lasts 6.6 months, from March 22 to October 11. The month with the fewest wet days in Balfour is July, with an average of 0.6 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Balfour is December, with an average of 15.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 53% on December 12.

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. Balfour experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.2 months, from September 4 to May 9, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Balfour is December, with an average rainfall of 3.7 inches.

The rainless period of the year lasts for 3.8 months, from May 9 to September 4. The month with the least rain in Balfour is July, with an average rainfall of 0.1 inches.

The length of the day in Balfour varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 28 minutes of daylight; the longest day is December 21, with 13 hours, 49 minutes of daylight.

The earliest sunrise is at 5:04 AM on December 1, and the latest sunrise is 1 hour, 51 minutes later at 6:54 AM on July 2. The earliest sunset is at 5:19 PM on June 8, and the latest sunset is 1 hour, 44 minutes later at 7:03 PM on January 12.

Daylight saving time (DST) is not observed in Balfour during 2024.

The figure below presents a compact representation of key lunar data for 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.

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 perceived humidity level in Balfour, 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, remaining a virtually constant 0% throughout.

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

The windier part of the year lasts for 4.0 months, from July 30 to November 28, with average wind speeds of more than 8.4 miles per hour. The windiest month of the year in Balfour is September, with an average hourly wind speed of 9.9 miles per hour.

The calmer time of year lasts for 8.0 months, from November 28 to July 30. The calmest month of the year in Balfour is March, with an average hourly wind speed of 6.8 miles per hour.

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

The wind is most often from the east for 2.2 months, from January 21 to March 28, with a peak percentage of 40% on February 19. The wind is most often from the west for 4.5 months, from March 28 to August 14, with a peak percentage of 39% on June 7. The wind is most often from the north for 5.2 months, from August 14 to January 21, with a peak percentage of 39% on January 1.

To characterize how pleasant the weather is in Balfour 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 times of year to visit Balfour for general outdoor tourist activities are from early September to late October and from mid December to mid April, with a peak score in the last week of February.

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 Balfour for hot-weather activities is from mid December to early March, with a peak score in the second week of February.

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.

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).

The growing season in Balfour typically lasts for 8.8 months (265 days), from around August 27 to around May 19, rarely starting before August 6 or after September 17, and rarely ending before April 25 or after June 7.

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.

Based on growing degree days alone, the first spring blooms in Balfour should appear around July 27, only rarely appearing before July 23 or after August 1.

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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.1 months, from October 22 to February 26, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest month of the year in Balfour is December, with an average of 7.6 kWh.

The darker period of the year lasts for 2.8 months, from May 7 to August 1, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest month of the year in Balfour is June, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Balfour are -26.663 deg latitude, 28.590 deg longitude, and 5,322 ft elevation.

The topography within 2 miles of Balfour contains only modest variations in elevation, with a maximum elevation change of 400 feet and an average elevation above sea level of 5,363 feet. Within 10 miles contains only modest variations in elevation (1,070 feet). Within 50 miles also contains very significant variations in elevation (1,719 feet).

The area within 2 miles of Balfour is covered by grassland (43%), artificial surfaces (34%), and cropland (23%), within 10 miles by grassland (58%) and cropland (40%), and within 50 miles by grassland (55%) and cropland (35%).