January weather forecast
Singapore, Singapore

Singapore experiences a tropical climate in January. The weather is generally warm and humid and there is the likelihood of frequent thunderstorms inherent to this equatorial region. The city witnesses a high relative humidity of 84.7%, culminating in a significant rainfall accumulation of about 243mm. The onset of the new year doesn't bring significant changes when compared to the end of the previous year's weather patterns. The overall weather, in combination with the city's vibrant lifestyle, paints an inviting picture for residents and tourists alike.

Temperature

The arrival of January in Singapore coincides with an average high-temperature of a still hot 30.1°C, indicating a minimal shift from December's 30°C. During the month of January, the temperature in Singapore falls to an average of 23.3°C.

Heat index

The average heat index in January is computed to be a sweltering 39°C. Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Singapore, Singapore, the average relative humidity in January is 84.7%.

Rainfall

In Singapore, during January, the rain falls for 15 days and regularly aggregates up to 243mm of precipitation. Throughout the year, in Singapore, there are 178 rainfall days, and 2343mm of precipitation is accumulated.

Sea temperature

January is the month with the coldest seawater, with an average sea temperature of 27.7°C.
Note: For swimming, diving, and other water activities, temperatures between 25°C and 29°C are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In January, the average length of the day is 12h and 3min.
On the first day of January in Singapore, sunrise is at 07:06 and sunset at 19:09. On the last day of the month, sunrise is at 07:15 and sunset at 19:19 +08.

Sunshine

In Singapore, the average sunshine in January is 5.6h.

UV index

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 12 in January translates into the following recommendations:
Utilize all vital precautions. Guarding against sun harm is non-negotiable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Despite the cloud cover, sunscreen with an SPF of at least 30 should be generously applied and reapplied, particularly after a swim or an outdoor workout. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.