Climate and monthly weather forecastOnianva, Congo
Climate and monthly weather forecast
The climate of Onianva
Situated in the central African country of Congo, Onianva is characterized by a Tropical wet and dry climate, also known as savanna climate in the Köppen climate classification. This dominant climate type manifests in fairly high, constant temperatures throughout the year, coupled with significant seasonal variation in rainfall.On average, the temperature sees only a narrow variation, from the highest of 33.3°C (91.9°F) in July to the lowest of 30°C (86°F) in November. Minimum temperatures too vary just a little, between 22.1°C (71.8°F) and 23.5°C (74.3°F). The days are generally warm and nights mildly cool, conforming to the typical tropical climate pattern.
Rainfall in Onianva sees marked monthly variation. The dry season, represented by notably lower rainfall figures, begins in June, lasting till August with the minimum rainfall registered at 21mm (0.83") in July. On the other side of the climatic balance, the wet season is characterized by copious rains, between 175mm (6.89") and 216mm (8.5") from October to November. To add, the number of days with precipitation also increases during these months reaching up to 30.3 days in November.
The humidity, a significant weather attribute in the tropical regions, normally averages from 57% in July to 81% in November and December. Meanwhile, the sunshine hours range from a minimum of 7.6 hours in October to a maximum of 10.3 hours in January, aligning with the rainfall patterns.
The average visibility fluctuates between 8km (5mi) during the wet season months to 10km (6.2mi) in the drier months. Onianva also experiences a relatively stable barometric pressure year-round, varying slightly between 1009.3mb in February and 1012.1mb in June.
Wind in Onianva varies marginally, with average wind speeds ranging from 5.1km/h (3.2mph) to 6.3km/h (3.9mph) and maximum gust speeds recorded between 8.5km/h (5.3mph) and 10km/h (6.2mph).
The best time to visit Onianva
The most pleasant time to tour Onianva would lie in the sunniest period from June to February. During this phase, the weather is drier with relatively lower humidity. The temperature is warm yet comfortable, and the frequency of rainfall is reduced. The visibility is also at its best during these months, enhancing the overall experience for the tourists.The worst time to visit Onianva
On the contrary, the wettest period from March to May and the exceptionally humid months of October and November can be challenging for travelers. These months bring frequent rainfall, higher humidity, and reduced sunshine, potentially impacting travel plans and outdoor activities.Spring weather in Onianva
In Onianva, the spring months from March to May are characterized by increasing levels of rainfall, with maximum precipitation of 116mm (4.57") in May. Sunshine hours decrease marginally from 9.4 hours in March to 8.7 hours in May, with an average of 3.6 to 4.8 days of clear skies.Summer weather in Onianva
During the summer months of June to August, Onianva enjoys its dry spell with the least rainfall in the year. The temperatures and humidity are also at its lowest. The average maximum temperature hovers around 32.5°C (90.5°F), and relative humidity hits its years' low at 57% in July. These months also bring ample sunshine, with an average of 9.7 hours of sunlight daily in August.Autumn weather in Onianva
Autumn in Onianva, from September to November, exhibits a stark change in the weather pattern with a remarkable increase in rainfall, reaching an annual high of 216mm (8.5") in October. The average temperature remains fairly constant, but the humidity starts to rise, peaking at 81% in November.Winter weather in Onianva
Winter months in Onianva, from December to February, depict a milder weather pattern. Although the rainfall dips to an average of 88mm (3.46") in January, the humidity continues to be high at 74%. The temperatures remain broadly consistent with the annual pattern, and the number of sunshine hours sees a relative increase, particularly in February with an average of 9.2 hours daily.Weather in January
Onianva, Congo, witnesses tropical weather in January, presenting warm temperatures and moderate humidity. January’s high temperatures hover at 32.7°C (90.9°F), which is one of the highest for the year. The general weather in January transitions subtly from the city's typical hot climate to wetter conditions, with a fair amount of cloud cover and rainfall. Weather in January »Weather in February
February continues to display the warm and humid climate pattern in Onianva, Congo. The major characteristic of the 32.9°C (91.2°F) high in February is the marginal increase from January. Regular rainfall and overcast skies are frequent occurrences, maintaining the moisture levels throughout February. Weather in February »Weather in March
Despite the slight cooling trend in Onianva, Congo, March continues to portray a typical tropical climate. A noteworthy characteristic of the weather in March is the relative humidity which climbs to 74%. Daily temperatures remain high, yet cloud cover and rainfall are increasingly prevalent throughout March. Weather in March »Weather in April
Onianva, Congo experiences a noticeable transition in its weather in April, with a decrease in temperature but an increase in rainfall. A distinct feature of April's weather is the 114mm (4.49") rainfall, among the highest monthly averages for the year. Weather in April »Weather in May
In May, Onianva, Congo's weather sees a further dip in temperature, accompanied by an elevation in the incidence of rain. Despite the slight cooling trend, the month's lowest temperature never goes below 22.8°C (73°F). Rainfall reaches 116mm (4.57") in May, marking the peak of the rainy season in the city. Weather in May »Weather in June
June brings about a shift in Onianva, Congo’s weather pattern, with a drop in rainfall and a slight increase in temperature. This month witnesses significant changes, with rainfall levels dropping dramatically to 44mm (1.73"). June is the gateway to a drier season, with a decrease in cloud cover and a notable decline in the number of rainfall days. Weather in June »Weather in July
July consolidates the dry season in Onianva, Congo as the rainfall continues to decrease and temperatures remain steady. The significantly low rainfall of 21mm (0.83") is the major feature of July's weather. Correspondingly, the relative humidity takes a distinct dip, leading to less cloud cover. Weather in July »Weather in August
In Onianva, Congo, August exhibits steady temperatures and a mild increase in rainfall from the previous month. The weather retains its tropical nature with the month’s highest temperature reaching 32.9°C (91.2°F). Rainfall begins to pick up again, leading to a slight increase in humidity and cloud cover. Weather in August »Weather in September
September brings increased humidity and a significant rise in rainfall in Onianva, Congo. The striking characteristic of September's weather is the 130mm (5.12") of rainfall, which again enhances the city’s tropical climate. Weather in September »Weather in October
Moving towards the end of the year, October in Onianva, Congo witnesses a soaring increase in rainfall accompanied by a dip in temperature. The month's remarkably high 216mm (8.5") of rain quantifies October as the wettest month of the year. Weather in October »Weather in November
Onianva, Congo experiences a continued wet and cooler weather pattern in November. The considerable 175mm (6.89") of rainfall in November portrays the heavy rain typical of this transition period. With a high volume of precipitation and subsequent increased cloud cover, sunshine days reduce considerably. Weather in November »Weather in December
Concluding the year, December in Onianva, Congo presents a decrease in both temperature and rainfall levels. December brings a gradual abatement of rain with downpours reducing to 108mm (4.25"). Despite this, cloud cover remains relatively high, with the number of rainy days showing only a minimal decrease. Weather in December »Updated: Feb 6, 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
In Onianva, during the entire year, the rain falls for 276.3 days and collects up to 1248mm (49.13") of precipitation.
January has the most sunshine of the year in Onianva, with an average of 10.3h of sunshine.
The months with the highest UV index are January through August, October through December, with an average maximum UV index of 7.
With an average of 12h and 0min of daylight, June has the shortest days of the year.
In Onianva, temperatures reach their average annual highs in July, measuring 33.3°C (91.9°F) and a minimum average of 23.3°C (73.9°F).
July is the least humid month in Onianva, Congo, with an average relative humidity of 57%.
The month with the least rainfall is July, when the rain falls for 13.2 days and typically collects 21mm (0.83") of precipitation.
September is the month with the lowest UV index in Onianva, with an average maximum UV index of 6.
The months with the highest humidity are October and November, with an average relative humidity of 81%.
The month with the most rainfall in Onianva, Congo, is October, when the rain falls for 30.3 days and typically aggregates up to 216mm (8.5") of precipitation.
October has the least sunshine of the year, with an average of 7.6h of sunshine.
Onianva's coldest weather arrives in November, when temperatures average a high of 30°C (86°F) and a low of 22.1°C (71.8°F).
With an average of 12h and 18min of daylight, December has the longest days of the year in Onianva, Congo.
Onianva does not observe Daylight Saving Time (DST). WAT timezone is used over the entire year.
Average temperature
Onianva, Congo
The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is November (30°C).
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is November (22.1°C).
Average pressure
Onianva, Congo
- Average pressure in January:
1010.1mbar - Average pressure in February:
1009.3mbar - Average pressure in March:
1009.6mbar - Average pressure in April:
1009.9mbar - Average pressure in May:
1010.8mbar - Average pressure in June:
1012.1mbar
- Average pressure in July:
1012mbar - Average pressure in August:
1011.7mbar - Average pressure in September:
1011.6mbar - Average pressure in October:
1010.5mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1010.2mbar
The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.3mbar).
Average wind speed
Onianva, Congo
- Average wind speed in January:
5.8km/h - Average wind speed in February:
6.1km/h - Average wind speed in March:
6km/h - Average wind speed in April:
5.7km/h - Average wind speed in May:
5.5km/h - Average wind speed in June:
5.8km/h
- Average wind speed in July:
6.3km/h - Average wind speed in August:
6.6km/h - Average wind speed in September:
6.1km/h - Average wind speed in October:
5.7km/h - Average wind speed in November:
5.1km/h - Average wind speed in December:
5.3km/h
The windiest month (with the highest average wind speed) is August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).
Average humidity
Onianva, Congo
The months with the highest relative humidity are October and November (81%).
The month with the lowest relative humidity is July (57%).
Average rainfall
Onianva, Congo
- Average rainfall in January:
66mm - Average rainfall in February:
93mm - Average rainfall in March:
105mm - Average rainfall in April:
114mm - Average rainfall in May:
116mm - Average rainfall in June:
44mm
The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days
Onianva, Congo
- Average rainfall days in January:
21 days - Average rainfall days in February:
22.8 days - Average rainfall days in March:
25.5 days - Average rainfall days in April:
24.4 days - Average rainfall days in May:
24.3 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
20.3 days - Average rainfall days in September:
27.5 days - Average rainfall days in October:
30.3 days - Average rainfall days in November:
28.1 days - Average rainfall days in December:
24 days
The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is July (13.2 days).
Average daylight / Average sunshine
Onianva, Congo
- Average daylight in January:
12h and 12min - Average daylight in February:
12h and 12min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 6min - Average daylight in May:
12h and 0min - Average daylight in June:
12h and 0min
- Average daylight in July:
12h and 0min - Average daylight in August:
12h and 0min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 12min - Average daylight in November:
12h and 12min - Average daylight in December:
12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in January:
10h and 18min - Average sunshine in February:
9h and 12min - Average sunshine in March:
9h and 24min - Average sunshine in April:
9h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 24min - Average sunshine in October:
7h and 36min - Average sunshine in November:
7h and 54min - Average sunshine in December:
9h and 42min
The month with the most sunshine is January (Average sunshine: 10h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).
Average sunshine days
Onianva, Congo
- Average sunshine days in January:
8.1 days - Average sunshine days in February:
3.4 days - Average sunshine days in March:
4.1 days - Average sunshine days in April:
3.6 days - Average sunshine days in May:
4.8 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
15.9 days - Average sunshine days in August:
8.7 days - Average sunshine days in September:
1.4 days - Average sunshine days in October:
0.4 days - Average sunshine days in November:
1.5 days - Average sunshine days in December:
4.9 days
The month with the most sunshine days is July (15.9 days).
The month with the least sunshine days is October (0.4 days).
Average UV index
Onianva, Congo
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).
Average cloud cover
Onianva, Congo
The month with the most cloud cover is October (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility
Onianva, Congo
The months with the highest visibility are February, June, July and August (10km).
The months with the lowest visibility are October and November (8km).
