Temperature
Hot by day, warm at night.
86°Ftypical December high
Typical range
December climate
December in Colombo
Sri Lanka · South Asia
Hot afternoons and some sun. Cyclone risk and humid air are the main drawbacks.
Some tradeoffs
Late
Daytime high
86°F
Lows around 74°F
Rain
Frequent rain
Sun
7 h/day
Air feel
Very humid
Sea temp
83°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 15 wet days, fewer than in most months.
48%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
7 hDecember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
70%December Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In December, afternoons feel about 91° and nights feel near 81°.
WarmHotSwelteringNight hours
Clear sky
Mostly cloudy skies this month.
32%December Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in December.
6 mphDecember Calm
Sea temperature
83°FDecember sea temp
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 84°F, easing to about 81°F in early evening.
Avg temp Typical range
Morning80°F
Feels 87°F
Rain15%
Cloud63%
Humid airVery high
Sun intensityModerate
Midday85°F
Feels 91°F
Rain29%
Cloud69%
Humid airVery high
Sun intensityStrong
Late afternoon84°F
Feels 90°F
Rain45%
Cloud74%
Humid airVery high
Sun intensityModerate
Early evening81°F
Feels 87°F
Rain28%
Cloud73%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 88 | 73 | 2.5 | 8 | 8.0 | 76 | 82 |
| Feb | 91 | 75 | 2.0 | 7 | 8.7 | 71 | 83 |
| Mar | 92 | 77 | 3.6 | 15 | 8.9 | 75 | 84 |
| Apr | 90 | 78 | 7.4 | 27 | 7.8 | 83 | 86 |
| May | 87 | 79 | 10.0 | 29 | 6.5 | 86 | 86 |
| Jun | 86 | 78 | 9.7 | 29 | 6.5 | 87 | 84 |
| Jul | 85 | 78 | 8.6 | 29 | 6.5 | 86 | 83 |
| Aug | 85 | 78 | 8.3 | 28 | 6.5 | 86 | 82 |
| Sep | 85 | 77 | 9.6 | 28 | 6.3 | 86 | 83 |
| Oct | 86 | 76 | 14.1 | 28 | 6.5 | 87 | 84 |
| Nov | 86 | 75 | 12.9 | 23 | 7.0 | 86 | 84 |
| Dec | 86 | 74 | 6.0 | 15 | 7.0 | 82 | 83 |
Similar climates
Similar
Similar travel styleChennaiIndiaSimilar travel styleAccraGhanaSimilar travel stylePuducherryIndiaSimilar travel styleMiamiUnited States
Want a side-by-side climate view? Compare Colombo with Chennai.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology