Munnar weather in May

In May, Munnar sees average daytime highs of 27°C and overnight lows near 20°C, with 246 mm of rain across 28.2 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 4% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Munnar's 7th-clearest and 8th-windiest month. For the whole year in context, see Munnar's year-round climate.

Daytime high
27°
5th warmest
Overnight low
20°
12th coldest
Rainfall
246 mm
28.2 wet days
Daylight
12 h 30 min
6:04 AM – 6:32 PM
Cloud cover
81%
7th clearest
Wind
4 km/h
8th windiest
Solar energy
4.83 kWh/m²
Travel score
3.7
out of 10

Munnar is town in Idukki district, Kerala, India.

Density
364/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical May day in Munnar reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72821
82821
92821
102721
112721
122721
132721
142720
152720
162720
172720
182720
192720
202720
212720
222720
232620
242620
252620
262620
272620
282620
292620
302620
312620

Munnar weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 17°254.911.57.2
Feb30° / 18°27511.76.0
Mar31° / 20°6410.211.94.6
Apr30° / 20°14922.812.23.6
May27° / 20°24628.212.53.7
Jun25° / 20°42428.712.63.6
Jul24° / 20°41029.512.53.6
Aug24° / 19°32228.312.33.8
Sep25° / 19°23725.512.14.1
Oct26° / 19°32626.411.84.1
Nov26° / 19°27222.911.54.5
Dec26° / 18°10012.611.46.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 84%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22674
32575
42476
52377
62278
72278
82080
92080
101981
111882
121783
131783
141783
151684
161684
171585
181585
191486
201486
211288
221189
231189
241090
251090
261090
27991
28991
29991
30793
31793

Chance of precipitation in May

Any precipitation

Munnar gets around 246 mm of rain over 28.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
390
490
590
691
791
891
991
1091
1190
1290
1390
1489
1589
1689
1789
1889
1989
2089
2190
2290
2390
2491
2592
2692
2793
2894
2994
3095
3195

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
125147
225048
324949
424850
514752
614752
714752
814752
914752
1004753
1104753
1204753
1304852
1414851
1514851
1614851
1714851
1814851
1914851
2014950
2114950
2215049
2315049
2415148
2515247
2615346
2715445
2815544
2905743
3005941
3106040

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:08 AM to 6:03 AM, and sunset from 6:30 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:086:30
212.46:086:30
312.46:086:30
412.46:076:30
512.46:076:30
612.46:076:30
712.46:066:30
812.46:066:30
912.46:066:31
1012.46:066:31
1112.46:056:31
1212.46:056:31
1312.46:056:31
1412.46:056:31
1512.56:046:32
1612.56:046:32
1712.56:046:32
1812.56:046:32
1912.56:046:32
2012.56:046:33
2112.56:036:33
2212.56:036:33
2312.56:036:33
2412.56:036:34
2512.56:036:34
2612.56:036:34
2712.56:036:34
2812.56:036:35
2912.56:036:35
3012.56:036:35
3112.56:036:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.83 kWh/m².

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 6.28 kWh/m² in March across the year — May's 4.83 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.1Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.4Bright
304.4Bright
314.3Bright
Planning a trip in May

Hazard calendar for Munnar

In seasonPeak

In May, Munnar sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Munnar's rainy season runs May–November, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Munnar?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.7
Sightseeing
9th-best month of the year
3.8
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Munnar.

What to pack for Munnar in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Munnar sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Munnar in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Munnar peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 16UV 14Dec 21UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar13Extreme
Apr14Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Air quality in Munnar in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Munnar is worst in January — around 68 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (July, 26 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1367 µg/m³Jul 1726 µg/m³
PM2.5 (µg/m³)Level
Jan68Unhealthy
Feb61Unhealthy
Mar58Unhealthy
Apr53Poor
May47Poor
Jun29Moderate
Jul26Moderate
Aug28Moderate
Sep33Moderate
Oct51Poor
Nov62Unhealthy
Dec65Unhealthy
Location & terrain

Where is Munnar?

Munnar sits at 10.1°N, 77.1°E, 1,470 m above sea level, in India. The nearest listed city is Kochi, 89 km away.

MysoreBengaluruJaffna

Topography around Munnar

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Munnar.

Within 3 km, the terrain around Munnar has large variations in elevation — a maximum elevation change of 627 m around an average of 1,578 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,360 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,648 m.

The land around Munnar is covered by trees (71%) and grassland (25%) within 3 km, trees (82%) within 16 km, and trees (77%) within 80 km.

3 km
627 m
16 km
2,360 m
80 km
2,648 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Kochi 89 km · Thaikattussery 99 km · Alappuzha 105 km · Madurai 117 km · Irimbiliyam 137 km · Mysore 250 km · Bengaluru 326 km · Jaffna 326 km

India travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / D / M
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,702
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
2.8
per 100k, 2022
Road deaths
15.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 484
Religion
Hindu 80%Muslim 14%Christian 2%other and unspecified 2%

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 Munnar (10.0882°, 77.0624°, elevation 1,470 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).