Climate and monthly weather forecastSleman, Indonesia
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm summer month in Sleman, Indonesia, with an average temperature varying between 23.3°C (73.9°F) and 28.6°C (83.5°F). The initiation of January records an average high-temperature of a still warm 28.6°C (83.5°F), displaying a near consistency with the previous month. Weather in January »Weather in February
The last month of the summer, February, is another warm month in Sleman, Indonesia, with an average temperature fluctuating between 28.7°C (83.7°F) and 23.1°C (73.6°F). During February, the average high-temperature is a still warm 28.7°C (83.7°F), maintaining a close resemblance to that of the preceding month. Weather in February »Weather in March
The first month of the autumn, March, is also a moderately hot month in Sleman, Indonesia, with an average temperature fluctuating between 28.9°C (84°F) and 23°C (73.4°F). The beginning of March records an average high-temperature of a still moderately hot 28.9°C (84°F), almost echoing the conditions of the previous month. Weather in March »Weather in April
April, the same as March, is a moderately hot autumn month in Sleman, Indonesia, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 23.1°C (73.6°F). The onset of April notes an average high-temperature of a still moderately hot 29.1°C (84.4°F), subtly shifted from March's 28.9°C (84°F). Weather in April »Weather in May
The last month of the autumn, May, is another warm month in Sleman, Indonesia, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 28.7°C (83.7°F). Sleman ushers in May with an average high-temperature of a still moderately hot 28.7°C (83.7°F), showing a close resemblance to the previous month. Weather in May »Weather in June
The first month of the winter, June, is still a warm month in Sleman, Indonesia, with an average temperature ranging between max 28.2°C (82.8°F) and min 22.2°C (72°F). With the onset of June, a modest change to a still warm 28.2°C (82.8°F) from May's 28.7°C (83.7°F) is noted in high-temperature. Weather in June »Weather in July
July, like June, in Sleman, Indonesia, is another warm winter month, with an average temperature fluctuating between 27.7°C (81.9°F) and 21.4°C (70.5°F). Temperature readings reach their annual highs in July, averaging 27.7°C (81.9°F) and a minimum average of 21.4°C (70.5°F). In July, the heat index is estimated at a tropical 32°C (89.6°F). Weather in July »Weather in August
The last month of the winter, August, is another warm month in Sleman, Indonesia, with an average temperature varying between 28°C (82.4°F) and 21°C (69.8°F). Sleman starts August with an average high-temperature of a still moderately hot 28°C (82.4°F), a minor shift from July's 27.7°C (81.9°F). Weather in August »Weather in September
The first month of the spring, September, is also a moderately hot month in Sleman, Indonesia, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 21.4°C (70.5°F). Sleman greets September with an average high-temperature of a still warm 28.7°C (83.7°F), marking a slight deviation from the preceding month. Weather in September »Weather in October
October, like September, in Sleman, Indonesia, is another warm spring month, with an average temperature varying between 29.3°C (84.7°F) and 22.6°C (72.7°F). With average high and low temperatures of 29.3°C (84.7°F) and 22.6°C (72.7°F) respectively, October is Sleman's warmest month. In October, the average heat index is estimated at a fiery hot 36°C (96.8°F). Weather in October »Weather in November
The last month of the spring, November, is also a moderately hot month in Sleman, Indonesia, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 23.3°C (73.9°F). Entering November, the average high-temperature is recorded at a still moderately hot 29°C (84.2°F), exhibiting a minimal shift from October's 29.3°C (84.7°F). Weather in November »Weather in December
The first month of the summer, December, is also a moderately hot month in Sleman, Indonesia, with an average temperature fluctuating between 23.2°C (73.8°F) and 28.7°C (83.7°F). Sleman's December reports an average high-temperature of a still warm 28.7°C (83.7°F), exhibiting a minor difference from November. Weather in December »Updated: Aug 10, 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 Sleman, during the entire year, the rain falls for 294.6 days and collects up to 1749mm (68.86") of precipitation.
January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index.
The month with the most sunshine is February, with an average of 9h of sunshine.
The months with the highest UV index are February, March and October, with an average maximum UV index of 7.
The month with the most rainfall is March, when the rain falls for 29.8 days and typically aggregates up to 236mm (9.29") of precipitation.
The months with the highest humidity are May and June, with an average relative humidity of 84%.
The month with the shortest days is June, with an average of 11h and 42min of daylight.
In Sleman, the average lowest temperatures are observed in July, with a high of 27.7°C (81.9°F) and a low of 21.4°C (70.5°F).
August is the month with the least rainfall. Rain falls for 13.8 days and accumulates 29mm (1.14") of precipitation.
The months with the lowest humidity in Sleman are September and October, with an average relative humidity of 80%.
Sleman's warmest month, October, generally records average temperatures ranging from a high of 29.3°C (84.7°F) to a low of 22.6°C (72.7°F).
The month with the longest days is December, with an average of 12h and 36min of daylight.
Sleman does not observe Daylight Saving Time (DST). WIB timezone is used over the entire year.
December has the least sunshine of the year, with an average of 7.4h of sunshine.
Average temperature
Sleman, Indonesia
The warmest month (with the highest average high temperature) is October (29.3°C).
The month with the lowest average high temperature is July (27.7°C).
The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).
Average pressure
Sleman, Indonesia
- Average pressure in January:
1009.2mbar - Average pressure in February:
1009.6mbar - Average pressure in March:
1009.8mbar - Average pressure in April:
1009.9mbar - Average pressure in May:
1010.2mbar - Average pressure in June:
1010.8mbar
- Average pressure in July:
1011.4mbar - Average pressure in August:
1011.8mbar - Average pressure in September:
1011.8mbar - Average pressure in October:
1011mbar - Average pressure in November:
1009.6mbar - Average pressure in December:
1009mbar
The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed
Sleman, Indonesia
- Average wind speed in January:
9.2km/h - Average wind speed in February:
7.7km/h - Average wind speed in March:
7.2km/h - Average wind speed in April:
7km/h - Average wind speed in May:
8.8km/h - Average wind speed in June:
9.6km/h
- Average wind speed in July:
11.2km/h - Average wind speed in August:
11.6km/h - Average wind speed in September:
11km/h - Average wind speed in October:
10km/h - Average wind speed in November:
8.1km/h - Average wind speed in December:
8.5km/h
The windiest month (with the highest average wind speed) is August (11.6km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).
Average humidity
Sleman, Indonesia
The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).
Average rainfall
Sleman, Indonesia
- Average rainfall in January:
209mm - Average rainfall in February:
214mm - Average rainfall in March:
236mm - Average rainfall in April:
207mm - Average rainfall in May:
164mm - Average rainfall in June:
83mm
The wettest month (with the highest rainfall) is March (236mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days
Sleman, Indonesia
- Average rainfall days in January:
30.3 days - Average rainfall days in February:
27.4 days - Average rainfall days in March:
29.8 days - Average rainfall days in April:
28.8 days - Average rainfall days in May:
25.9 days - Average rainfall days in June:
20.9 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
17.8 days - Average rainfall days in October:
25 days - Average rainfall days in November:
28.4 days - Average rainfall days in December:
29.4 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.8 days).
Average daylight / Average sunshine
Sleman, Indonesia
- Average daylight in January:
12h and 30min - Average daylight in February:
12h and 24min - Average daylight in March:
12h and 6min - Average daylight in April:
11h and 54min - Average daylight in May:
11h and 48min - Average daylight in June:
11h and 42min
- Average daylight in July:
11h and 42min - Average daylight in August:
11h and 54min - 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 42min).
- Average sunshine in January:
8h and 36min - Average sunshine in February:
9h and 0min - Average sunshine in March:
8h and 6min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
8h and 30min - Average sunshine in August:
8h and 54min - Average sunshine in September:
8h and 36min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 48min - Average sunshine in December:
7h and 24min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days
Sleman, Indonesia
- Average sunshine days in January:
0.4 days - Average sunshine days in February:
0.4 days - Average sunshine days in March:
0.6 days - Average sunshine days in April:
0.8 days - Average sunshine days in May:
3.3 days - Average sunshine days in June:
6.3 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
7.3 days - Average sunshine days in October:
3.3 days - Average sunshine days in November:
1 days - Average sunshine days in December:
0.8 days
The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January and February (0.4 days).
Average UV index
Sleman, Indonesia
The months with the highest UV index are February, March and October (UV index 7).
The months with the lowest UV index are January, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover
Sleman, Indonesia
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility
Sleman, Indonesia
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
