Jaffna, Sri Lanka — Weather in May 2027

Climate Overview

Jaffna, Sri Lanka in May has hot conditions, with highs reaching 31.2°C (88°F) and afternoons the warmest part of the day. Rain falls on about 11 days this month. Winds are noticeable. Sea temperature reaches 30.9°C (88°F).

This month falls at the end of Spring. Temperatures are at their seasonal peak.

Temperatures remain fairly steady throughout May, with daily highs around 32°C (90°F).

Rainfall is heaviest during the middle of the month, while the last third tends to be drier.

Expect around 10.8h of sunshine at the start of May, increasing to 11.3h by the end.

Wind speeds pick up through the month, from 23 km/h (15 mph) to 35 km/h (22 mph).

The warmest days tend to fall around the 1th, averaging 32°C (90°F).

Compared to April, this month is about 0°C cooler with 5 more rainy days.

Monthly May Averages

Temperature

31°C / 28°C

Feels Like

36°C / 31°C

Rain

11 days · 96 mm

Sunshine

10.3h / day

Humidity

78% — Muggy

Wind

29 km/h

Wind Direction

SSW (203°)

Gusts

42 km/h

Daylight

12.6 h

Cloud Cover

70%

Clear Sky Days

UV Index

7.9 — Very High

Sea Temperature

31°C

Dew Point

25°C — Oppressive

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:49

Daylight 12.6h

Sunset 18:23

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	27°C / 25°C	29°C / 26°C	8days (78 mm) Wet	9.9h Good	75% Muggy	7.2 Very High	Excellent	View Details
February best	28°C / 25°C	31°C / 27°C	4days (37 mm) Good	10.7h Excellent	74% Muggy	8.3 Very High	Good	View Details
March	30°C / 26°C	36°C / 29°C	4days (17 mm) Good	11.1h Excellent	75% Muggy	9 Very High	Fair	View Details
April	32°C / 28°C	38°C / 32°C	6days (42 mm) Good	11.1h Excellent	76% Humid	9 Very High	Poor	View Details
May	31°C / 28°C	36°C / 31°C	11days (96 mm) Wet	10.3h Excellent	78% Humid	7.9 Very High	Poor	View Details
June	31°C / 28°C	34°C / 30°C	9days (37 mm) Wet	10.7h Excellent	77% Humid	7.9 Very High	Poor	View Details
July	31°C / 28°C	34°C / 30°C	12days (53 mm) Wet	10h Excellent	77% Humid	7.6 Very High	Poor	View Details
August	30°C / 27°C	34°C / 29°C	12days (65 mm) Wet	10.2h Excellent	78% Humid	8.4 Very High	Poor	View Details
September	30°C / 27°C	34°C / 29°C	13days (70 mm) Wet	10.2h Excellent	78% Humid	8.5 Very High	Poor	View Details
October	29°C / 26°C	34°C / 29°C	21days (215 mm) Wet	9.3h Good	81% Humid	7.8 Very High	Wet	View Details
November	28°C / 25°C	32°C / 28°C	24days (406 mm) Wet	8h Good	83% Humid	6.5 High	Wet	View Details
December best	27°C / 25°C	30°C / 27°C	18days (200 mm) Wet	9.4h Good	81% Humid	6.8 High	Wet	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Jaffna?

May is typically poor for visiting Jaffna, with average highs of 31°C (88°F) and around 11 rainy days. Jaffna, Sri Lanka in May has hot conditions, with highs reaching 31.2°C (88°F) and afternoons the warmest part of the da

Does it rain a lot in Jaffna in May?

Jaffna typically sees around 11 rainy days in May with 96 mm (3.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Jaffna in May?

Nights stay pleasantly warm in Jaffna during May, around 28°C (82°F). Light evening wear is sufficient.

What should I pack for Jaffna in May?

With highs of 31°C (88°F) and lows of 28°C (82°F) in May, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Jaffna?

May is not the most favourable month weather-wise in Jaffna. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Jaffna in May?

The average UV index in Jaffna during May is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in Jaffna in May?

Jaffna gets approximately 13 hours of daylight per day in May, with around 10 hours of sunshine.

Does it snow in Jaffna in May?

Snow is uncommon in Jaffna during May based on 10-year climate averages.

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