Climate and monthly weather forecastBig Bend, Swaziland

The climate of Big Bend

The climate of Big Bend, Swaziland, falls under the "Cfa" category according to the Köppen climate classification, indicating it features a humid subtropical climate with no dry season. The geographical position of this locale, situated within the southern hemisphere, plays a pivotal role in defining its weather patterns.

When analyzing weather parameters throughout the year, the average high temperature varies between 21.4°C (70.5°F) to 27.5°C (81.5°F), while the average low temperature fluctuates from 9.3°C (48.7°F) to 17.5°C (63.5°F). This illustrates a moderate temperature range, amounting to the region's general warmth. The rainfall, spanning from 4mm (0.16") to 110mm (4.33"), varies vastly, contributing to the humid nature of this climate. The peak of rainfall occurs in December with a hefty 110mm (4.33") precipitation.

Even though the region has humid subtropical climate, the relative humidity levels fluctuate from 57% to 82%, peaking in winter months and dipping during the summer. Furthermore, Big Bend registers between 14% and 58% cloud cover throughout the year, with the least cloudiness occurring in summer months. Unusual weather conditions arise during winter months when the wind speeds can reach up to 14km/h (8.7mph), higher than at any other time of year.

The best time to visit Big Bend

Taking into consideration the weather parameters, the optimal time to visit Big Bend would most likely be from May to November. This period is the sunny zenith of the year, with the average hours of sunshine ranging from 7.3 hours to 9.0 hours. Additionally, temperatures during this period are comfortable, ranging from 21.4°C (70.5°F) to 27.3°C (81.1°F). Visitors can also enjoy clearer skies and lower humidity levels during these months.

The worst time to visit Big Bend

On the contrary, the months of December to April might prove less pleasant for a visit due to higher rainfall amounts ranging from 45mm (1.77") to 110mm (4.33"), coupled with high humidity levels upwards of 74%. These factors may render outdoor activities less enjoyable. Moreover, wind speeds are also relatively higher during this phase, reaching a maximum speed of 10.2km/h (6.3mph) especially in December and April.

Spring weather in Big Bend

The period of September to November marks spring in Big Bend. During these months, the weather is typically mild, and average high temperatures range from 23.8°C (74.8°F) to 27.3°C (81.1°F). On average, rainfall during this period ranges from 9mm (0.35") to 53mm (2.09") providing a somewhat drier period of the year. Moreover, spring is accompanied by one of the clearest visibility periods of the year, with ranges from 9km (5.6mi) to 10km (6.2mi).

Summer weather in Big Bend

In Big Bend, summer spans from December to February. It is during this period that the region experiences its highest temperatures, humidity, and rainfall. These months see average high temperatures ranging from 26.6°C (79.9°F) to 27.5°C (81.5°F) and low temperatures from 15.9°C (60.6°F) to 17.5°C (63.5°F). As for precipitation, the records show an average rainfall from 74mm (2.91") to 110mm (4.33"), making summer the wettest season.

Autumn weather in Big Bend

Shifting focus to the March through May period, Big Bend enters its autumn season. During this time, the temperatures range from 21.7°C (71.1°F) to 26.6°C (79.9°F) for highs and 9.4°C (48.9°F) to 15.9°C (60.6°F) for lows. Precipitation levels fall, with rainfall amounts dipping from 58mm (2.28") to just 6mm (0.24"). These mild temperatures and less rainy conditions post-summer provide a reprieve from the more humid climate of the previous months.

Winter weather in Big Bend

Winter in Big Bend spans from June to August, characterized by cooler temperatures and less rainfall. During this season, the region sees temperatures varying from 21.4°C (70.5°F) to 23.8°C (74.8°F), representing the yearly low. Furthermore, the rainfall levels decrease significantly to reach a low of 4mm (0.16") in July, making winter the driest time of the year. Interesting to note is the wind speed, which reaches its peak in June at 7.9km/h (4.9mph). Despite the cooler temperatures and gusty winds, the sun remains prominent, averaging from 7.3 hours to 7.4 hours of sunshine.

Weather in January

January in Big Bend, Swaziland, starts off with increased humidity, characterized by a combination of high and low temperatures, moving from 17.4°C (63.3°F) to 27.3°C (81.1°F). Evidenced relative humidity at this time is 82%. Weather in January »

Weather in February

As Swaziland transitions from January to February, weather conditions in Big Bend take on a new dynamic. February records a slight drop in both high and low weather temperatures. Rainy days are less frequent but still present, contributing to a 74mm (2.91") rainfall average. Weather in February »

Weather in March

The meteorological pattern shifts in March, bearing witness to a noteworthy reduction in rainfall to 58mm (2.28") and a slight decrease in average temperatures. The amount of daylight also dwindles, shrinking to 12.2 hours. Despite the decrease in rainfall, the relative humidity remains almost constant, hovering at 81%. Weather in March »

Weather in April

April in Big Bend ushers in a significant shift towards a drier climate, with the least rainfall of just 45mm (1.77") since the start of the year. Temperature deviations are more notable compared to March and the length of daylight slips to 11.5 hours. Weather in April »

Weather in May

May marks the arrival of the driest season in Big Bend, with a mere 6mm (0.24") rainfall, leading to some of the year's clearest skies and a reduction in relative humidity to 67%. Concurrently, the wind speed is maintained with a slight increase, providing some respite from the high temperatures. Weather in May »

Weather in June

June marks the beginning of winter in Big Bend, with a sharp drop in temperature from previous months. There is a slight increase in wind speed to 7.9km/h (4.9mph) and rainfall remains minimal at 7mm (0.28"). Sunshine hours and daylight duration further decrease, but the humidity also drops substantially. Weather in June »

Weather in July

July offers the coldest weather conditions in Big Bend throughout the year, with temperatures plunging to the yearly lowest point, ranging from 9.3°C (48.7°F) to 21.4°C (70.5°F). Remarkably, the wind speed drops compared to June, while daylight hours remain relatively constant. Weather in July »

Weather in August

In August, there is a subtle transition towards warmer weather in Big Bend as adjustments in temperatures are recorded. Rainfall remains low, measuring merely 9mm (0.35"), making the region suitable for visitors favoring dry climatic conditions. Weather in August »

Weather in September

September is the month that brings a change in Big Bend's dry spell, with rainfall levels escalating to 18mm (0.71"). The weather becomes slightly warmer, while daylight duration extends up to 11.9 hours. The shift in climatic conditions does little to affect relative humidity and visibility range. Weather in September »

Weather in October

October experiences a further increase in rainfall, culminating in a monthly total of 53mm (2.09"), indicating the onset of the rainy season in Big Bend. The temperatures persistently rise, while an increase in daylight duration creates warmer days. Weather in October »

Weather in November

Peak rainy season arrives in November with average rainfall jumping to a significant 71mm (2.8"). In harmony with the increased precipitation, the relative humidity also goes paces up to 74%. However, wind speeds drop slightly, tempering the heightened rainfall. Weather in November »

Weather in December

December, the year-end month, experiences the highest rainfall amount of 110mm (4.33"), marking the peak of Big Bend's heavy rain season. A small rise in temperature compared to the previous month is seen, coinciding with the longer daylight duration of 13.8 hours. Weather in December »