The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Colombo Weather in May

Colombo in May

The short of it: Colombo in May averages a high of 20 °C (68 °F) and a low of 10 °C (49 °F), with 106 mm (4.2 in) of rain and about 10 h 54 min of daylight. Rated 3 of 5 for a visit; the best months are October and April. Source: TerraClimate climate normals, 1991–2020.

Average high 20° · low 10° · rain 106 mm · daylight 10 h 54 min

✦✦✦ Fair for a visit · best months: October & April

Thirty years of records give Colombo an average May high of 20°, a low of 10° and some 106 mm of rain. Much like April: highs about 20°, nights near 10°. Easy travelling weather. Wet spells are common — about 106 mm, the 8th wettest month.

The sun is up for about 10 h 54 min in mid-May, 38 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates May 3 of 5 for a visit; the finest months here are October and April.

Against its neighbours, Colombo runs about middling and wetter than most in May. Almirante Tamandaré, 9 km to the WSW, sees much the same highs.

May in Colombo, by the numbers

Warmth rank
10th warmest of 12
Rain rank
8th wettest of 12
Versus April
3° colder, 6.0 mm more rain
Versus June
1° warmer
Day–night spread
10°
Snow season
seldom any
Daylight, mid-month
10 h 54 min
Average wind
6 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
Almirante TamandaréParaná9 km WSW20°10°102 mm
Rio Branco do SulParaná14 km NW20°10°101 mm
Bocaiúva do SulParaná15 km NE20°10°104 mm
ItaperuçuParaná15 km WNW20°9°103 mm
CuritibaParaná16 km SSW21°10°100 mm
Quatro BarrasParaná17 km ESE21°10°109 mm
Campina Grande do SulParaná17 km E21°10°109 mm
PinhaisParaná17 km S21°11°102 mm

The Almanac · Colombo Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Fair
The Almanac Speaks
May
✦✦✦✦✦

Much like April: highs about 20°, nights near 10°. Easy travelling weather. Wet spells are common — about 106 mm, the 8th wettest month.

Climate of Colombo by month
MonthHighLowRainWindDaylightVisit
January26°16°251 mm6 km/h13 h 33 min✦✦✦
February26°16°209 mm6 km/h12 h 59 min✦✦✦
March25°15°148 mm6 km/h12 h 18 min✦✦✦
April23°13°100 mm5 km/h11 h 32 min✦✦✦
May20°10°106 mm6 km/h10 h 54 min✦✦✦
June19°9°106 mm5 km/h10 h 34 min✦✦✦
July19°8°96 mm5 km/h10 h 42 min✦✦✦
August21°9°76 mm6 km/h11 h 14 min✦✦✦
September22°11°144 mm7 km/h11 h 59 min✦✦✦
October23°13°153 mm8 km/h12 h 44 min✦✦✦
November24°14°131 mm8 km/h13 h 23 min✦✦✦
December25°15°172 mm7 km/h13 h 42 min✦✦✦

Questions Readers Ask about Colombo in May

Answered from the wire & the Almanac

What is the weather like in Colombo in May?

Days average 20 °C (68 °F) and nights 10 °C (49 °F), with about 106 mm (4.2 in) of rain over the month. Much like April: highs about 20°, nights near 10°. Easy travelling weather. Wet spells are common — about 106 mm, the 8th wettest month.

Is May a good time to visit Colombo?

The Almanac gives May 3 of 5 (fair). The best months are October and April.

How long are the days in Colombo in May?

In mid-May the sun is up for about 10 h 54 min. The days are shortening — from 10 h 34 min in June to 13 h 42 min in December.

Does it snow in Colombo in May?

Hardly — May nights average 10 °C (49 °F), above freezing.

What should I pack for Colombo in May?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor
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