UV Index in Colombo, Sri Lanka

Hourly UV Index in Colombo

At 07:00, the UV Index starts at a modest 2, but as the sun rises higher, it escalates rapidly. By 08:00, the index doubles to 4, signaling a gradual increase in UV exposure. The peak arrives between 10:00 and 12:00, where it hits an impressive 14, indicating a high risk of harm from unprotected sun exposure. Temperatures soar as the index dips slightly to 12 by 13:00 and further declines to 9 by 14:00. As the afternoon progresses, the UV levels plummet, dropping to 5 at 15:00 and falling to 2 by 16:00. The sun's strength fades further with readings of 1 at 17:00 and finally reaching 0 after 18:00. It's a stark reminder of the sun's intensity, urging everyone to prioritize sun safety during those peak hours.

Monthly UV Index Trends in Colombo

Throughout the year, the UV Index remains significantly high, indicating an extreme exposure risk for nearly all months. The highest UV Index readings occur from February to April, with a peak of 15 in April, underscoring this period as particularly critical for sun protection. Residents and visitors should be particularly cautious during these high-risk months, which also include March and September when the UV Index is consistently high at 14. Regardless of the month, burn times are alarmingly short, averaging just 10 minutes for peak exposure periods; December is the sole exception with a 15-minute burn time due to a slightly lower UV Index of 10. To stay safe, individuals should wear protective clothing, apply sunscreen regularly, and seek shade during peak sunlight hours throughout the year.

Compare Colombo UV Index with Other Sri Lanka Cities