Climate and monthly weather forecastOssu, East Timor
Climate and monthly weather forecast
The climate of Ossu
Ossu, located in East Timor, generally experiences a Tropical wet and dry or savanna climate, defined in the Köppen climate classification as an Aw predominant climate. Distinct wet and dry seasons characterize the weather pattern, with high temperatures and humidity levels experienced throughout the year.The highest recorded temperatures hover around 31.5°C (88.7°F) in October and November, while January through March sees marginally cooler temperatures, dipping to an average of 29°C (84.2°F). The lowest temperatures, recorded during the nights, drop to about 20.7°C (69.3°F) in August, from an average high of 24.2°C (75.6°F) in January.
A marked seasonal contrast is evident in rainfall values, with the wettest month being March, noting an impressive 132mm (5.2") of rain, whereas August and September being notably dry with only 2mm (0.08") to 4mm (0.16") of rain respectively. The number of rainy days sees a similar pattern, with January and February seeing nearly 20 wet days each, while August and September see precipitation on merely 4 and 3 days, respectively.
Humidity ranges significantly, from a high of 84% in February and March to a low of 72% in September. Mean sunshine hours demonstrate a minor seasonal contrast, starting at 7.3 hours per day in January, peaking at 9.5 hours in October and settling back to 7.8 hours by December.
The best time to visit Ossu
Considering the combined effects of temperature, humidity, and rainfall, the most favorable time to visit Ossu is between May and October. These months present an ideal balance with less rainfall, lower humidity, and abundant sunshine hours, contributing to the overall comfort for tourists. Temperature remains within a pleasant range, from 27.4°C (81.3°F) to 31.3°C (88.3°F), with nighttime temperatures not falling below 20.7°C (69.3°F).The worst time to visit Ossu
Weather parameters indicate a less favorable climate for travel between January and April. During these months, the area experiences high rainfall, with values reaching as high as 132mm (5.2") in March. Additionally, humidity perches at its peak, ranging from 82% to 84%, exacerbating the overall discomfort. Despite temperature remaining relatively stable, such wet and humid conditions might not be appealing to travelers.Spring weather in Ossu
In the Spring, from April to June, Ossu sees a significant drop in the number of rainy days and average rainfall and a slight decrease in relative humidity. There is an increase in the number of sunshine hours, providing opportunities for outdoor activities. The average temperatures range from 29.3°C (84.7°F) to 27.4°C (81.3°F) during the day and 23.2°C (73.8°F) to 21.9°C (71.4°F) at night.Summer weather in Ossu
During the Summer months of July to September, Ossu experiences minimal rainfall, with average rainfall falling to as low as 2mm (0.08") in August. The number of sunny days increases, with sunshine hours reaching a high of 9.4 hours per day. Daytime temperatures maintain a stable range from 28°C (82.4°F) to 29.8°C (85.6°F), and night temperatures vary from 21.3°C (70.3°F) to 20.7°C (69.3°F).Autumn weather in Ossu
Autumn, spanning October to December, is a transition period in the climatic calendar of Ossu. The rainfall starts increasing gradually after the dry summer months, with the relative humidity also on an upward trend. The daylight hours slightly reduce, but adequate sunshine persists, providing pleasant conditions. There's a slight increase in temperature, with daily highs varying from 31.3°C (88.3°F) to 30°C (86°F), and lows from 23°C (73.4°F) to 24°C (75.2°F).Winter weather in Ossu
The Winter months of January to March in Ossu display a tropical wet pattern. These months mark the peak of the rainy season, with rainfall reaching 132mm (5.2") in March and the number of rainy days nearing 20 days each in January and February. In terms of temperature, daytime highs stay close to 29°C (84.2°F), while nighttime lows range from 24.2°C (75.6°F) to 23.3°C (73.9°F). Despite high rainfall, there is still a fair amount of sunshine, with daylight hours around 12.2 hours per day.Weather in January
In Ossu, East Timor, the first month of the year is characterized by warm temperatures, significant moisture content in the air, and frequent rainfall. This period experiences a maximal amount of rainfall, averaging 88mm (3.46"), significantly higher in comparison to the immediate next months. Weather in January »Weather in February
Moving on to February, the weather conditions do not differ much from January. The area continues to experience high temperatures and humidity, but a slight increase in visibility can be observed. Despite being in the season of high rainfall, there is an increase to 102mm (4.02") compared to the previous month. Weather in February »Weather in March
March provides an interesting shift in the weather patterns in Ossu, East Timor. The temperature and humidity regulation stays consistent, yet the region observes the highest amount of rainfall at 132mm (5.2"). With the incoming rain, there is a slight drop in overall cloud formation, partially increasing the sunlight visibility. Weather in March »Weather in April
As we enter into April, the patterns exhibit a notable transition. Rainfall significantly drops to 45mm (1.77"), paving the way for longer days with more sunlight hours. The climatological changes become more evident as the declining trend in cloud formation continues. Weather in April »Weather in May
Weather during May in Ossu, East Timor maintains consistent temperatures but the overall humid conditions start to decrease. The region experiences a low number of rainfall days, which combined with decreasing cloud cover, allows for a slight increase in the number of sunshine hours. Weather in May »Weather in June
For June, the weather parameters indicate an overall enhancement of comfort levels. The climate becomes noticeably less humid, and residents get to enjoy more sunshine with an increased number of sunshine days. The downward trend in rainfall is most notable in June, with precipitation levels as low as 17mm (0.67"). Weather in June »Weather in July
July marks a further shift in Ossu's weather dynamics. Temperatures start to decline slightly, hinting at a cooler climate. Despite a decline in humidity, the region still witnesses rainfall, albeit at a record low of 19mm (0.75") for the year. Weather in July »Weather in August
August records the least amount of rainfall in Ossu, East Timor with a minimal 2mm (0.08"). Despite the decline in rainfall, climate conditions still offer warm temperatures. The decrease in humidity, coupled with longer sunshine hours, attributes to a pleasant atmosphere. Weather in August »Weather in September
In September, weather conditions continue to uphold the trend set by August. There is a slight increase in rainfall to 4mm (0.16") but weather parameters remain consistently stable and inviting. The region is dominated by long sunshine hours and declining cloud formations, resulting in increased daylight exposure. Weather in September »Weather in October
October brings along a significant increase in rainfall to 13mm (0.51"), marking the onset of a wetter season. Yet, the climate continues to offer high temperatures and moderate humidity levels. Although there are more sunlit hours, an increase in cloud formation is observed. Weather in October »Weather in November
November experiences a continuation of the weather in October. The month is characterized by warmer temperatures and an increase in rainfall to 62mm (2.44"), a clear indication of the wet season. Despite an increase in rain, the number of sunshine hours and daylight remains high, maintaining a balance between raining and sunny days. Weather in November »Weather in December
December marks the wrap up of the year, returning to the conditions experienced in the initial few months. A substantial increase in rainfall levels to 114mm (4.49") denotes the continuation of the wet season. With increases in humidity and cloud formations, the number of sunshine hours sees a decrease. Weather in December »Updated: Jul 22, 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 Ossu, during the entire year, the rain falls for 157.3 days and collects up to 660mm (25.98") of precipitation.
January has the least sunshine of the year, with an average of 7.3h of sunshine.
The months with the highest UV index are January through March, September through December, with an average maximum UV index of 7.
The months with the highest humidity are February and March, with an average relative humidity of 84%.
March is the month with the most rainfall. Rain falls for 19.8 days and accumulates 132mm (5.2") of precipitation.
April through August, with an average maximum UV index of 6, are months with the lowest UV index.
The month with the shortest days is June, with an average of 11h and 36min of daylight.
Ossu's July weather, with an average high temperature of 27.2°C (81°F) and an average low temperature of 21.3°C (70.3°F), tends to be the coldest of the year.
The month with the least rainfall is August, when the rain falls for 4.3 days and typically collects 2mm (0.08") of precipitation.
October is the least humid month, with an average relative humidity of 71%.
The month with the most sunshine is October, with an average of 9.5h of sunshine.
Ossu's warmest temperatures are experienced in November, with average high temperatures of 31.5°C (88.7°F) and lows of 23.6°C (74.5°F).
December has the longest days of the year, with an average of 12h and 36min of daylight.
Ossu does not observe Daylight Saving Time (DST). +09 timezone is used over the entire year.
Average temperature
Ossu, East Timor
The warmest month (with the highest average high temperature) is November (31.5°C).
The month with the lowest average high temperature is July (27.2°C).
The month with the highest average low temperature is January (24.2°C).
The coldest month (with the lowest average low temperature) is August (20.7°C).
Average pressure
Ossu, East Timor
- Average pressure in January:
1007.5mbar - Average pressure in February:
1008.3mbar - Average pressure in March:
1008.8mbar - Average pressure in April:
1009.7mbar - Average pressure in May:
1010.7mbar - Average pressure in June:
1011.7mbar
- Average pressure in July:
1012.1mbar - Average pressure in August:
1012.6mbar - Average pressure in September:
1011.9mbar - Average pressure in October:
1010.7mbar - Average pressure in November:
1008.9mbar - Average pressure in December:
1007.5mbar
The month with the highest atmospheric pressure is August (1012.6mbar).
The months with the lowest atmospheric pressure are January and December (1007.5mbar).
Average wind speed
Ossu, East Timor
- Average wind speed in January:
9.3km/h - Average wind speed in February:
8.3km/h - Average wind speed in March:
6.3km/h - Average wind speed in April:
6.8km/h - Average wind speed in May:
9.6km/h - Average wind speed in June:
10.8km/h
- Average wind speed in July:
11.2km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
9km/h - Average wind speed in October:
7.8km/h - Average wind speed in November:
5.6km/h - Average wind speed in December:
5.8km/h
The windiest month (with the highest average wind speed) is July (11.2km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity
Ossu, East Timor
The months with the highest relative humidity are February and March (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Ossu, East Timor
- Average rainfall in January:
88mm - Average rainfall in February:
102mm - Average rainfall in March:
132mm - Average rainfall in April:
45mm - Average rainfall in May:
62mm - Average rainfall in June:
17mm
The wettest month (with the highest rainfall) is March (132mm).
The driest month (with the least rainfall) is August (2mm).
Average rainfall days
Ossu, East Timor
- Average rainfall days in January:
19.9 days - Average rainfall days in February:
19.9 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
11.1 days - Average rainfall days in August:
4.3 days - Average rainfall days in September:
3.7 days - Average rainfall days in October:
5.7 days - Average rainfall days in November:
10 days - Average rainfall days in December:
22.3 days
The month with the highest number of rainy days is December (22.3 days).
The month with the least rainy days is September (3.7 days).
Average daylight / Average sunshine
Ossu, East Timor
- Average daylight in January:
12h and 36min - Average daylight in February:
12h and 24min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 54min - Average daylight in May:
11h and 42min - Average daylight in June:
11h and 36min
- Average daylight in July:
11h and 42min - Average daylight in August:
11h and 48min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 18min - Average daylight in November:
12h and 30min - Average daylight in December:
12h and 36min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in January:
7h and 18min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 48min - Average sunshine in April:
8h and 24min - Average sunshine in May:
7h and 30min - Average sunshine in June:
7h and 42min
- Average sunshine in July:
7h and 54min - Average sunshine in August:
9h and 6min - Average sunshine in September:
9h and 24min - Average sunshine in October:
9h and 30min - Average sunshine in November:
9h and 0min - Average sunshine in December:
7h and 48min
The month with the most sunshine is October (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days
Ossu, East Timor
- Average sunshine days in January:
9.6 days - Average sunshine days in February:
7.2 days - Average sunshine days in March:
9.7 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
17.6 days - Average sunshine days in August:
25.3 days - Average sunshine days in September:
25.4 days - Average sunshine days in October:
24 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
7.3 days
The month with the most sunshine days is September (25.4 days).
The month with the least sunshine days is February (7.2 days).
Average UV index
Ossu, East Timor
The months with the highest UV index are January, February, March, September, October, November and December (UV index 7).
The months with the lowest UV index are April, May, June, July and August (UV index 6).
Average cloud cover
Ossu, East Timor
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 20).
Average visibility
Ossu, East Timor
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
