January weather forecast
Changi, Singapore

Unveiling the year with a warm and humid climate, Changi witnesses moderate rainfall in January, making it a cost-effective month for travel. It sees a swift transformation in its temperatures, oscillating from 24.9°C (76.8°F) to 29.3°C (84.7°F). The charm of this month lies in its cloud-permeated skies, offering a mild touch to the city's panorama. A consistent UV index denotes that travellers must ensure appropriate sun protection. It's wise to carry moisture-absorbing clothing along as the humidity is relatively high throughout the day.

Temperature

During the coldest month in Changi, January, temperatures average a high of 29.3°C (84.7°F) and a low of 24.9°C (76.8°F).

Heat index

The heat index for January is evaluated at a torrid 36°C (96.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Changi, the average relative humidity in January is 80%.

Rainfall

In January, the rain falls for 25.8 days. Throughout January, 143mm (5.63") of precipitation is accumulated. In Changi, during the entire year, the rain falls for 309.5 days and collects up to 1577mm (62.09") of precipitation.

Daylight

The average length of the day in January in Changi is 12h and 3min.
On the first day of January, sunrise is at 07:05 and sunset at 19:08. On the last day of the month, sunrise is at 07:15 and sunset at 19:19 +08.

Sunshine

The average sunshine in January in Changi is 7.3h.

UV index

The months with the highest UV index in Changi are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Changi are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in January translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.