October weather forecast
Saint John, VI

The arrival of October in Saint John signifies the subtle beginning of the transition away from the intense summer season. While the climate retains its warmth, there is a gentle cooling effect as the month progresses. October is characterized by 6.3" (160mm) of rainfall, marking the year’s highest, making it the wettest month. When combined with the temperate atmosphere, the frequent showers add a different charm to the city's tropical vibe.

Temperature

In October, Saint John's weather conditions record an average high-temperature of a still tropical 86°F (30°C), demonstrating little divergence from the preceding month. During the October nights, an average temperature of 75.2°F (24°C) is observed.

Rainfall

The wettest months are October and November, with an average 6.34" (161mm) of rainfall.

Ocean temperature

September and October, with an average ocean temperature of 84.2°F (29°C), are months with the warmest seawater.
Note: With water temperature from 77°F (25°C) to 84.2°F (29°C), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In Saint John, the average length of the day in October is 11h and 43min.
On the first day of October, sunrise is at 6:09 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 5:46 pm AST.

Sunshine

In Saint John, the average sunshine in October is 8h.

UV index

In October, the average daily maximum UV index is 10. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 10 during October morphs into the following directions:
Taking safety measures is non-negotiable; skin and eyes can be swiftly affected if neglected. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Use liberally and reapply a broad-spectrum sunscreen with at least SPF 30 every two hours and right after outdoor activities or a swim. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.