Kalmunai in Fall
In fall (September, October and November), Kalmunai sees average daytime highs around 29°C and overnight lows near 26°C, with 511 mm of rain over about 59 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 31°C in early September to 28°C by late November. The sky is clear or mostly clear about 14% of the time across fall, and the air most often feels oppressive.
Fall is Kalmunai's weakest season of the year to visit on our travel score. Kalmunai has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Kalmunai's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 511 mm
- 59 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.9
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Kalmunai in Fall
Over the season highs ease from about 31°C in early September to 28°C by late November.
A typical fall day in Kalmunai reaches about 29°C and drops to 26°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Kalmunai
Once humidity and wind are folded in, fall brings about 63 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Kalmunai weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 24° | 186 | 17.8 | 11.6 | 5.3 |
| Feb | 28° / 24° | 95 | 13 | 11.8 | 5.8 |
| Mar | 29° / 25° | 60 | 9.9 | 11.9 | 5.7 |
| Apr | 30° / 26° | 70 | 13.4 | 12.2 | 4.5 |
| May | 31° / 27° | 59 | 11.6 | 12.3 | 4.0 |
| Jun | 32° / 27° | 32 | 6.6 | 12.4 | 4.0 |
| Jul | 32° / 27° | 31 | 7.6 | 12.4 | 4.0 |
| Aug | 32° / 27° | 42 | 9.3 | 12.2 | 4.1 |
| Sep | 31° / 26° | 67 | 13.7 | 12 | 4.0 |
| Oct | 29° / 26° | 164 | 20.8 | 11.8 | 3.8 |
| Nov | 28° / 25° | 280 | 24.7 | 11.7 | 3.9 |
| Dec | 27° / 24° | 310 | 22.5 | 11.6 | 4.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 14% of the time across fall.
Chance of precipitation in Fall
Kalmunai gets around 511 mm of rain over 59 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 06 min in early September to 11 h 36 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.2 kWh/m².
Hazard calendar for Kalmunai
In fall, Kalmunai overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Kalmunai sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Kalmunai's monsoon runs October–January, when most of the year's rain falls.
Is fall a good time to visit Kalmunai?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Kalmunai.
What to pack for Kalmunai in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Kalmunai sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 59 days see rain.
Sea temperature near Kalmunai in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in May at about 30°C and coldest in January near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Kalmunai in Fall
Clear-sky midday UV across fall averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Kalmunai peaks around April 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 10 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 12 | 13 | 14 | 14 | 11 | 11 | 13 | 13 | 12 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 14 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Very high |
Air quality in Kalmunai in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Kalmunai is worst in May — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 19 | 20 | 19 | 25 | 23 | 23 | 23 | 22 | 22 | 20 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 19 | Moderate |
| Mar | 20 | Moderate |
| Apr | 19 | Moderate |
| May | 25 | Moderate |
| Jun | 23 | Moderate |
| Jul | 23 | Moderate |
| Aug | 23 | Moderate |
| Sep | 22 | Moderate |
| Oct | 22 | Moderate |
| Nov | 20 | Moderate |
| Dec | 18 | Moderate |
Where is Kalmunai?
Kalmunai sits at 7.4°N, 81.8°E, 10 m above sea level, in Sri Lanka. The nearest listed city is Ampara, 21 km away.
Topography around Kalmunai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kalmunai.
Within 3 km, the terrain around Kalmunai has only modest variations in elevation — a maximum elevation change of 13 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,357 m.
The land around Kalmunai is covered by water (43%) within 3 km, water (53%) and cropland (30%) within 16 km, and water (43%) and trees (38%) within 80 km.
Sri Lanka travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 230 V · 50 Hz
- Prices
- ≈ 27% of US
- price level, 2025
- GDP per capita
- $5,002
- 2025
- Happiness
- 4.0 / 10
- World Happiness, 2025
- Safe drinking water
- 47%
- of population, 2024
- Homicide rate
- 3.3
- per 100k, 2019
- Road deaths
- 19.7
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 486
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kalmunai (7.409°, 81.8347°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.