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Contents
- The climate of Grand Valley Estate
- The Best Time to Visit Grand Valley Estate
- The Worst Time to Visit Grand Valley Estate
- Spring Weather in Grand Valley Estate
- Summer Weather in Grand Valley Estate
- Autumn Weather in Grand Valley Estate
- Winter Weather in Grand Valley Estate
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Grand Valley Estate
Perched in the humid subtropical climate zone, Grand Valley Estate is subjected to the rhythms of a Cwa Köppen climate. This particular climate segment is characterized by hot, usually humid summers and mild to cool winters.
Evident through the given climatological data, it becomes clear that the temperature in this part of Swaziland remains fairly consistent throughout the year. High temperatures typically peak at 27.5°C (81.5°F) and dip to around 21.4°C (70.5°F), ensuring a rather warm environment year-round. As for low temperatures, one can expect figures ranging from 17.5°C (63.5°F) down to 9.3°C (48.7°F). During cold months, the chill in the air is noticeable but not uncomfortably so.
Humidity levels also exhibit minor changes throughout the year. The relative humidity usually lingers between 57% during the driest part of the year and 82% at the most humid periods. Rainfall, however, is not as evenly distributed as temperature or humidity. Precipitation peaks in December with a measurement of 110mm (4.33"), while it virtually disappears in the dry months from May to September, with measurements falling between 4mm (0.16") and 9mm (0.35"). The sunshine hours fluctuate from 6.4 hours to 9 hours, giving ample time for both relaxation and activities under the sun.
Unique weather conditions include the barely existing rainfall during the around mid-quarter of the year, accompanied by astonishingly low humidity levels compared to the rest of the year.
Evident through the given climatological data, it becomes clear that the temperature in this part of Swaziland remains fairly consistent throughout the year. High temperatures typically peak at 27.5°C (81.5°F) and dip to around 21.4°C (70.5°F), ensuring a rather warm environment year-round. As for low temperatures, one can expect figures ranging from 17.5°C (63.5°F) down to 9.3°C (48.7°F). During cold months, the chill in the air is noticeable but not uncomfortably so.
Humidity levels also exhibit minor changes throughout the year. The relative humidity usually lingers between 57% during the driest part of the year and 82% at the most humid periods. Rainfall, however, is not as evenly distributed as temperature or humidity. Precipitation peaks in December with a measurement of 110mm (4.33"), while it virtually disappears in the dry months from May to September, with measurements falling between 4mm (0.16") and 9mm (0.35"). The sunshine hours fluctuate from 6.4 hours to 9 hours, giving ample time for both relaxation and activities under the sun.
Unique weather conditions include the barely existing rainfall during the around mid-quarter of the year, accompanied by astonishingly low humidity levels compared to the rest of the year.
The Best Time to Visit Grand Valley Estate
A visit to Grand Valley Estate would be best planned for the months of May to September. During this time, rainfall is at a minimum which allows tourists to explore the estate and its surrounding attractions without the concern of sudden showers. The temperature, though lower than other months, remains comfortable, ranging from 21.7°C (71.1°F) to 23.8°C (74.8°F) in highs, and from 9.3°C (48.7°F) to 13.7°C (56.7°F) in lows. Increased daylight hours ranging from 10.5 hours to 11.5 hours, coupled with reduced cloud coverage, promise abundant sunshine during these months.
The Worst Time to Visit Grand Valley Estate
While Grand Valley Estate can be enjoyed year-round, the months of November to February experience significantly higher rainfall, reaching measurements between 71mm (2.8") to 110mm (4.33"). Coupled with high relative humidity levels of above 74%, these months may feel quite sticky and uncomfortable for some visitors.
Spring Weather in Grand Valley Estate
In the spring months, March, April, and May, the climate in Grand Valley Estate is pleasantly warm. High temperatures ascend from 26.6°C (79.9°F) to 24.3°C (75.7°F) and 23.8°C (74.8°F) respectively, while low temperatures decrease at a steady pace from 15.9°C (60.6°F) to 13.7°C (56.7°F) and 11.8°C (53.2°F). The rainfall shows a sharp decline from 58mm (2.28") in March to a scant 6mm (0.24") in May. Meanwhile, the increased sunshine hours from 8.6 hours to 7.4 hours provide beautiful spring days for outdoor activities.
Summer Weather in Grand Valley Estate
Summer ushers in comfortable heat, with high temperatures ranging from 21.7°C (71.1°F) to 25.9°C (78.6°F) between June and September. The low temperatures do not drop drastically, standing between 9.4°C (48.9°F) and 13.6°C (56.5°F). The prevalence of sunshine remains steady, oscillating from 7.3 hours to 7.9 hours. In terms of rainfall, a visibly dry period sets in, curtailing from 7mm (0.28") to 18mm (0.71") over the summer months.
Autumn Weather in Grand Valley Estate
October and November represent the autumn season. The temperature rises slightly with highs consistently around 25.6°C (78.1°F) and 26.4°C (79.5°F) respectively. Low temperatures also register an increase, rising from 15°C (59°F) to 16.1°C (61°F), marking a transition to the colder months. Autumn witnesses a surge in rainfall, noticeably increasing to 71mm (2.8") by November, and the sunshine hours remain relatively high at around 8.7 hours to 9 hours.
Winter Weather in Grand Valley Estate
Winter in Grand Valley Estate is characterized by its highest temperatures reaching 27.5°C (81.5°F) in December, the warmest compared to highs in other winter months, which range between 24.3°C (75.7°F) and 27.3°C (81.1°F). The lowest temperatures also rise slightly, reaching 17.5°C (63.5°F) in December. Rainfall reaches its peak in December at 110mm (4.33"), but drops to 74mm (2.91") and 94mm (3.7") in January and February respectively. While the winter skies are largely cloudy, there are still roughly between 6.4 hours and 8.8 hours of sunshine to be enjoyed each day.
Weather in January
January's weather in Grand Valley Estate, Swaziland, gradually eases into the new year with a relatively high comfort index, mirroring the conditions of the preceding December. A moderate UV index of 6 sets the stage for enjoyable outdoor activities. Weather in January »
Weather in February
In February, the climatic conditions of Grands Valley Estate demonstrate a condensing of January's patterns, with a reduction in rainfall and a slight difference in temperatures. Field-friendly weather due to improved visibility allows for unhindered commute throughout the town. Weather in February »
Weather in March
March manifests the advent of subtle seasonal changes in Grand Valley Estate, where patterns shift towards drier conditions and lesser rain. Temperatures are slightly lower when compared to February, but the overall comforts remain amenable. Weather in March »
Weather in April
April in Grand Valley Estate brings a distinct shift in weather patterns, introducing a respite from the previous months' relative warmth with a lowering of temperatures to 24.3°C (75.7°F). The noticeable decline in rainfall also suggests the start of the drier season. Weather in April »
Weather in May
May in Grand Valley Estate marks numerous changes in weather dynamics, echoing the advancing of the local winter season. The plummeting temperatures, coupled with a more drastic reduction in rainfall to just 6mm (0.24"), create a remarkably dry atmosphere. Weather in May »
Weather in June
Grand Valley Estate's June weather cements the winter season's arrival, characterized by the year's lowest temperatures. The sharp reduction in cloud cover allows for an increase in sunshine days, compensating for the chill. As the month progresses, a steady increase in daylight hours becomes noticeable, bidding goodbye to the long, cold nights of winter. Weather in June »
Weather in July
In July, Grand Valley Estate continues its winter journey with a marginal increase in temperatures from the lows of last month. The climatic conditions remain quite constant with that of June, manifesting a gentle, predictable weather trend. Weather in July »
Weather in August
August in Grand Valley Estate presents the preliminary signs of spring, showcased by a noticeable rise in temperatures and the beginning of a gradual increase in rainfall. The UV index sustains a constant figure, but a reduction in pressure levels signals the changing seasons. Weather in August »
Weather in September
September brings in the long-anticipated spring season in full swing to Grand Valley Estate. With an increase to 25.9°C (78.6°F), the temperatures return to comfortable warmth similar to that of earlier March. The rainfall also sees a considerable rise, injecting vitality into the local flora and fauna. Weather in September »
Weather in October
October in Grand Valley Estate witnesses an interesting concurrence of weather attributes, combined with a significant increase in rainfall, which soars to 53mm (2.09"). The days grow longer, with an increase in daylight hours, but the Sunshine duration consistently stands higher than in September. Weather in October »
Weather in November
November weather in Grand Valley Estate signals the start of a transition period; the tangible nip in the air is a stark reminder of the forthcoming cooler months. Be prepared for an increased rainfall of 71mm (2.8"), complemented by a drop in the number of sunshine days. Weather in November »
Weather in December
December marries the charm of Grand Valley Estate's winter with the festive spirit of holiday season. The coolest month, with temperatures diving to 17.5°C (63.5°F), houses shorter days and crisper air. Despite the reduction in sunlight duration, Sunshine hours show the highest figures of 8.7 hours, slightly more than in November. Weather in December »
Updated: Jun 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the most humid months in Grand Valley Estate?
January and February, with an average relative humidity of 82%, are most humid months in Grand Valley Estate.
How much does it rain in Grand Valley Estate?
Throughout the year, there are 156.8 rainfall days, and 549mm (21.61") of precipitation is accumulated.
When is the highest UV index?
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index.
What is the month with the least sunshine?
With an average of 6.4h of sunshine, April has the least sunshine of the year.
When is the lowest UV index?
The months with the lowest UV index are April through October, with an average maximum UV index of 5.
What is the month with the shortest days?
With an average of 10h and 30min of daylight, June has the shortest days of the year in Grand Valley Estate.
What time of the year is the coldest?
July is the month that records the lowest temperatures, with averages ranging from a high of 21.4°C (70.5°F) to a low of 9.3°C (48.7°F).
What is the driest month?
July is the month with the least rainfall. Rain falls for 4.3 days and accumulates 4mm (0.16") of precipitation.
What is the least humid month?
With an average relative humidity of 57%, August is the least humid month.
What month has the most sunshine in Grand Valley Estate?
The month with the most sunshine is November, with an average of 9h of sunshine.
What time of the year is the hottest in Grand Valley Estate?
In Grand Valley Estate, the average temperatures in December are the highest, with a peak at 27.5°C (81.5°F) and a low of 17.5°C (63.5°F).
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 22.7 days and accumulates 110mm (4.33") of precipitation.
When are the longest days?
With an average of 13h and 48min of daylight, December has the longest days of the year.
Is there Daylight Saving Time (DST)?
Grand Valley Estate does not observe Daylight Saving Time (DST). SAST timezone is used over the entire year.
Average temperature
Grand Valley Estate, 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
Grand Valley Estate, 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
Grand Valley Estate, 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
Grand Valley Estate, 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
Grand Valley Estate, Swaziland
The wettest month (with the highest rainfall) is December (110mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days
Grand Valley Estate, 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
Grand Valley Estate, Swaziland
- Average daylight in January:
13h and 4min - Average daylight in February:
13h and 0min - Average daylight in March:
12h and 1min - Average daylight in April:
11h and 2min - Average daylight in May:
10h and 5min - Average daylight in June:
10h and 3min
- Average daylight in July:
10h and 4min - Average daylight in August:
11h and 1min - Average daylight in September:
11h and 5min - Average daylight in October:
12h and 4min - Average daylight in November:
13h and 2min - Average daylight in December:
13h and 5min
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 1min - Average sunshine in February:
8h and 5min - Average sunshine in March:
8h and 4min - Average sunshine in April:
6h and 2min - Average sunshine in May:
7h and 2min - Average sunshine in June:
7h and 2min
- Average sunshine in July:
7h and 2min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 5min - Average sunshine in October:
8h and 4min - Average sunshine in November:
9h and 0min - Average sunshine in December:
8h and 4min
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
Grand Valley Estate, 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
Grand Valley Estate, 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
Grand Valley Estate, 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
Grand Valley Estate, 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).
Grand Valley Estate, Swaziland
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