January weather forecastSlim River, Malaysia
January
Weather in January
January is a tropical winter month in Slim River, Malaysia, with an average temperature ranging between min 20.8°C (69.4°F) and max 30.4°C (86.7°F).Temperature
At the start of January, Slim River's average high-temperature reaches a hot 30.4°C (86.7°F), subtly different from the preceding month. The average low-temperature of 20.8°C (69.4°F) is witnessed in Slim River during January.Heat index
The heat index value for January is appraised at an extremely hot 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In January, the average relative humidity in Slim River is 83%.Rainfall
In January, in Slim River, the rain falls for 23.8 days. Throughout January, 88mm (3.46") of precipitation is accumulated. In Slim River, Malaysia, during the entire year, the rain falls for 310.8 days and collects up to 1623mm (63.9") of precipitation.Daylight
The average length of the day in January is 11h and 56min.On the first day of January in Slim River, sunrise is at 7:20 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:26 pm +08.
Sunshine
In Slim River, Malaysia, the average sunshine in January is 7.4h.UV index
The average daily maximum UV index in January is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 6 in January translates into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Slim River, Malaysia
- Average high temperature in January: 30.4°C
The warmest months (with the highest average high temperature) are February, March, May and June (31.8°C).
The month with the lowest average high temperature is December (29.8°C).
- Average low temperature in January: 20.8°C
The month with the highest average low temperature is May (22.2°C).
The coldest months (with the lowest average low temperature) are January and February (20.8°C).
Average pressure in January
Slim River, Malaysia
- Average pressure in January: 1010.6mbar
The months with the highest atmospheric pressure are January and February (1010.6mbar).
The month with the lowest atmospheric pressure is May (1008.8mbar).
Average wind speed in January
Slim River, Malaysia
- Average wind speed in January: 4.4km/h
The windiest months (with the highest average wind speed) are January and February (4.4km/h).
The calmest months (with the lowest average wind speed) are April and November (3.7km/h).
Average humidity in January
Slim River, Malaysia
- Average humidity in January: 83%
The months with the highest relative humidity are November and December (85%).
The month with the lowest relative humidity is August (78%).
Average rainfall in January
Slim River, Malaysia
- Average rainfall in January: 88mm
The wettest month (with the highest rainfall) is October (185mm).
The driest month (with the least rainfall) is February (71mm).
Average rainfall days in January
Slim River, Malaysia
- Average rainfall days in January: 23.8 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is February (21.1 days).
Average daylight in January /
Average sunshine in January
Slim River, Malaysia
- Average daylight in January: 11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January: 7h and 24min
The months with the most sunshine are June and September (Average sunshine: 8h and 36min).
The months with the least sunshine are November and December (Average sunshine: 7h and 0min).
Average sunshine days in January
Slim River, Malaysia
- Average sunshine days in January: 5 days
The month with the most sunshine days is February (5.1 days).
The month with the least sunshine days is September (1.6 days).
Average UV index in January
Slim River, Malaysia
- Average UV index in January: 6
The months with the highest UV index are March, April, May, June, July and September (UV index 7).
The month with the lowest UV index is November (UV index 5).
Average cloud cover in January
Slim River, Malaysia
- Average cloud cover in January: 51
The months with the most cloud cover are November and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in January
Slim River, Malaysia
- Average visibility in January: 7km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January, April, November and December (7km).





