Climate and monthly weather forecastMacnab, Swaziland
Climate and monthly weather forecast
The climate of Macnab
Macnab in Swaziland endures a Humid subtropical climate, falling under the Köppen climate classification of Cwa. This predominating climate involves dry winters and is influenced by its geographical location.Throughout the year, the weather is generally warm, with average high temperatures reaching a peak of 27.5°C (81.5°F) in December, and dipping to a minimum of 21.4°C (70.5°F) in July. The contrast in the climate is observed in the differing low temperatures, varying from 17.5°C (63.5°F) in December to 9.3°C (48.7°F) in July.
Precipitation varies widely across the year with a fairly wet period between January to March, as indicated by the average rainfall of 94mm (3.7") in January, 74mm (2.91") in February and 58mm (2.28") in March. Meanwhile, a notably dry spell occurs between May to August with rainfall lessening to 6mm (0.24") in May, 7mm (0.28") in June, 4mm (0.16") in July and 9mm (0.35") in August. The driest month, July, sees only around 4mm (0.16") of rainfall over 4.3 days. The wind speeds escalate from 6.1km/h (3.8mph) in March to 7.9km/h (4.9mph) in June and July, providing a refreshing contrast.
The best time to visit Macnab
For tourists who prefer warm weather with lower humidity levels and less rainfall, the ideal time to visit Macnab is from May to August. During this period, the humidity drops from 67% in May to 57% in August, accompanied by a reduced rainfall amount with an average of 6mm (0.24") in May to 9mm (0.35") in August, over fewer rainy days. The lower temperatures coupled with moderate wind speeds contribute to a comfortable weather for sightseeing and outdoor activities.The worst time to visit Macnab
The period from January to March, when the region experiences its highest rainfall might not be ideal for visitors. The rainfall during these months ranges from 94mm (3.7") in January to 58mm (2.28") in March coupled with high humidity, which can deter outdoor activities.Spring weather in Macnab
Springtime in Macnab, which spans from September to November, sees a gradual ascend in temperatures. The average high temperatures during this time rise from 23.8°C (74.8°F) in September to 26.4°C (79.5°F) in November. The average low temperatures gradually increase from 11.1°C (52°F) to 16.1°C (61°F) during the same period. Rainfall shows a similar trend, starting at 18mm (0.71") in September and culminating at 71mm (2.8") in November. Wind speeds are fairly consistent during this time, averaging around 8km/h (5mph).Summer weather in Macnab
In Macnab, the summertime brings warmth, with the high temperatures in the period of December to February, ranging from 27.3°C (81.1°F) in December to 26.6°C (79.9°F) in February. The low temperatures are around 17.4°C (63.3°F) in December and 15.9°C (60.6°F) in February. This period is the rainiest, with rainfall peaking at 110mm (4.33") in December and reducing to 58mm (2.28") in February.Autumn weather in Macnab
The autumn season in Macnab experiences a cool down from March to May. The high temperatures decrease from 24.3°C (75.7°F) in March to 21.7°C (71.1°F) in May while the low temperatures also drop from 13.7°C (56.7°F) in March to 9.4°C (48.9°F) in May. Rainfall shows a marked decrease during this period from 45mm (1.77") in March to a mere 6mm (0.24") in May.Winter weather in Macnab
The winter months from June to August are characterized by chillier weather. High temperatures range from 21.4°C (70.5°F) in June to 23.8°C (74.8°F) in August, while low temperatures vary between 9.4°C (48.9°F) and 11.1°C (52°F). Rainfall is at the minimum levels for the year, with an average of 7mm (0.28") in June, 4mm (0.16") in July and 9mm (0.35") in August. These months also see an increased breeze, with average wind speeds ranging from 7.9km/h (4.9mph) in June to 7.6km/h (4.7mph) in August.Weather in January
The month of January in Macnab, Swaziland, kick-starts the year with average temperatures ranging from 17.4°C (63.3°F) to 27.3°C (81.1°F). Notably, January is among the wettest months, experiencing 21.3 days of rainfall totaling 94mm (3.7"), contributing to the region's lush greenery. Weather in January »Weather in February
Macnab's weather in February witnesses a slight fall in precipitation compared to January, but overall conditions remain relatively stable. The city experiences fluctuating temperatures between 17.3°C (63.1°F) and 27.4°C (81.3°F), which are remarkably similar to January's range. Weather in February »Weather in March
Transiting from February to March, the weather in Macnab shows a slight dip in both high and low average temperatures, now from 15.9°C (60.6°F) to 26.6°C (79.9°F). March brings fewer days of rainfall, hinting at the gradual passage towards the drier months of the year. Weather in March »Weather in April
April marks a transition in Macnab's climate, with a noticeable drop in both temperature and rainfall. The monthly average temperature reduces significantly from March, with a distinct range from 13.7°C (56.7°F) to 24.3°C (75.7°F). Weather in April »Weather in May
Coming into May, the weather in Macnab, Swaziland presents a marked shift toward drier and cooler conditions. The monthly temperature varies from 11.8°C (53.2°F) to 23.8°C (74.8°F), maintaining the cooler trend instigated in April. Weather in May »Weather in June
Weather transitions quite significantly as June arrives, entering the coolest season in Macnab. The average temperature throughout the month varies from 9.4°C (48.9°F) to 21.7°C (71.1°F), making it the coldest month of the year. Weather in June »Weather in July
July in Macnab, Swaziland carries over the cold weather from June with little variation in terms of temperature, from 9.3°C (48.7°F) to 21.4°C (70.5°F). July is another driest month of the year, witnessing a rainfall amount of a mere 4mm (0.16") which falls over 4.3 days. Weather in July »Weather in August
As Swaziland's winter begins to recede, August in Macnab sees a subtle increase in the city's temperature range, from 11.1°C (52°F) to 23.8°C (74.8°F). Comparatively, there's a slight increase in rainfall along with a rise in the number of rainy days, registering 9mm (0.35") over 6.1 days. Weather in August »Weather in September
Signaling the onset of Spring, September in Macnab, Swaziland heralds a rise in average temperatures, scaling from 13.6°C (56.5°F) to 25.9°C (78.6°F). An increase in precipitation is observed with an accumulation of 18mm (0.71") rain, signifying the end of the driest phase. Weather in September »Weather in October
October brings Macnab into full spring swing, with the average temperature reaching between 15°C (59°F) and 25.6°C (78.1°F). The city receives a significant increase in rainfall to 53mm (2.09") spread across 15.4 days, marking a greater shift towards the wet season. Weather in October »Weather in November
As summer approaches, November in Macnab, Swaziland sees rising temperatures, averaging between 16.1°C (61°F) and 26.4°C (79.5°F). A further increase in rainfall to 71mm (2.8"), spread over approximately 19.9 days, marks a return to wetter conditions. Weather in November »Weather in December
December, the gateway to the festive season, experiences the highest temperatures of the year in Macnab, oscillating between 17.5°C (63.5°F) and 27.5°C (81.5°F). The city sees the most rainfall, 110mm (4.33") over around 22.7 rainy days, reinforcing the onset of the wet season. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Macnab, Swaziland
The warmest month (with the highest average high temperature) is December (27.5°C).
The month with the lowest average high temperature is July (21.4°C).
The month with the highest average low temperature is December (17.5°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure
Macnab, Swaziland
- Average pressure in January:
1014mbar - Average pressure in February:
1014.4mbar - Average pressure in March:
1016.2mbar - Average pressure in April:
1019mbar - Average pressure in May:
1020.3mbar - Average pressure in June:
1022.5mbar
- Average pressure in July:
1024.1mbar - Average pressure in August:
1021.4mbar - Average pressure in September:
1019.2mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1015.4mbar - Average pressure in December:
1014.2mbar
The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1014mbar).
Average wind speed
Macnab, Swaziland
- Average wind speed in January:
6.9km/h - Average wind speed in February:
6.4km/h - Average wind speed in March:
6.1km/h - Average wind speed in April:
6.3km/h - Average wind speed in May:
6.7km/h - Average wind speed in June:
7.9km/h
- Average wind speed in July:
7.4km/h - Average wind speed in August:
7.6km/h - Average wind speed in September:
8.2km/h - Average wind speed in October:
8km/h - Average wind speed in November:
7.9km/h - Average wind speed in December:
7.1km/h
The windiest month (with the highest average wind speed) is September (8.2km/h).
The calmest month (with the lowest average wind speed) is March (6.1km/h).
Average humidity
Macnab, Swaziland
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (57%).
Average rainfall
Macnab, Swaziland
The wettest month (with the highest rainfall) is December (110mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days
Macnab, Swaziland
- Average rainfall days in January:
21.3 days - Average rainfall days in February:
17.4 days - Average rainfall days in March:
18.7 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
5.5 days - Average rainfall days in June:
3.6 days
- Average rainfall days in July:
4.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
15.4 days - Average rainfall days in November:
19.9 days - Average rainfall days in December:
22.7 days
The month with the highest number of rainy days is December (22.7 days).
The month with the least rainy days is June (3.6 days).
Average daylight / Average sunshine
Macnab, Swaziland
- Average daylight in January:
13h and 36min - Average daylight in February:
13h and 0min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 30min - Average daylight in May:
10h and 48min - Average daylight in June:
10h and 30min
- Average daylight in July:
10h and 42min - Average daylight in August:
11h and 12min - Average daylight in September:
11h and 54min - Average daylight in October:
12h and 42min - Average daylight in November:
13h and 24min - Average daylight in December:
13h and 48min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in January:
8h and 12min - Average sunshine in February:
8h and 48min - Average sunshine in March:
8h and 36min - Average sunshine in April:
6h and 24min - Average sunshine in May:
7h and 24min - Average sunshine in June:
7h and 18min
- Average sunshine in July:
7h and 18min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 54min - Average sunshine in October:
8h and 42min - Average sunshine in November:
9h and 0min - Average sunshine in December:
8h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 0min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).
Average sunshine days
Macnab, Swaziland
- Average sunshine days in January:
6.7 days - Average sunshine days in February:
7.5 days - Average sunshine days in March:
8.4 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
23.8 days - Average sunshine days in June:
25.4 days
- Average sunshine days in July:
24.2 days - Average sunshine days in August:
23 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
12.7 days - Average sunshine days in November:
7.1 days - Average sunshine days in December:
5.3 days
The month with the most sunshine days is June (25.4 days).
The month with the least sunshine days is December (5.3 days).
Average UV index
Macnab, Swaziland
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 5).
Average cloud cover
Macnab, Swaziland
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility
Macnab, Swaziland
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and March (7km).





