October weather forecast
Changi, Singapore

October reveals moderate fluctuations in weather conditions with temperatures rotating between 26.2°C (79.2°F) to 31.5°C (88.7°F). A prominent escalation in the rainfall marks October, intensifying as the month progresses paving the way for the upcoming wet season. Light winds sweep away the summer heat, introducing a refreshing breeze. Despite greater cloud cover, long daylight hours maintain the charm of October. By the end of the month, cool evenings give an early hint of the forthcoming winter season.

Temperature

As Changi welcomes October, the average high-temperature stabilizes at a still hot 31.5°C (88.7°F), showing little deviation from September's 31.2°C (88.2°F). An average temperature of 26.2°C (79.2°F) marks the nights in Changi in October.

Heat index

The heat index in October is evaluated at an extremely hot 40°C (104°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 73%.

Rainfall

In Changi, in October, it is raining for 25.9 days, with typically 130mm (5.12") of accumulated precipitation. Throughout the year, there are 309.5 rainfall days, and 1577mm (62.09") of precipitation is accumulated.

Daylight

The average length of the day in October in Changi is 12h and 5min.
On the first day of October, sunrise is at 06:50 and sunset at 18:56. On the last day of the month, sunrise is at 06:45 and sunset at 18:49 +08.

Sunshine

The average sunshine in October is 8.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Changi are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in October interprets 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 and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.