Chmistâr weather in May

In May, Chmistâr sees average daytime highs of 21°C and overnight lows near 9°C, with 31 mm of rain across 7 wet days and about 13.7 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 23°C by the end. The sky is clear or mostly clear about 69% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Chmistâr's 5th-clearest and 3rd-windiest month. For the whole year in context, see Chmistâr's year-round climate.

Daytime high
21°
6th warmest
Overnight low
7th coldest
Rainfall
31 mm
7 wet days
Daylight
13 h 48 min
4:39 AM – 6:25 PM
Cloud cover
29%
5th clearest
Wind
6 km/h
3rd windiest
Solar energy
7.4 kWh/m²
Travel score
7.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 23°C by the end.

A typical May day in Chmistâr reaches about 21°C in the afternoon and slips back to 9°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 26°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1187
2197
3197
4198
5198
6198
7198
8208
9208
10209
11209
12209
13219
14219
15219
162110
172110
182110
192210
202210
212210
222210
232211
242211
252311
262311
272311
282311
292311
302311
312312

How May really feels in Chmistâr

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chmistâr weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°10212.67.4100.8
Feb / -1°9611.56.710.71.3
Mar11° / 8311.2411.72.9
Apr16° / 488.50.512.85.4
May21° / 317013.77.6
Jun25° / 14°51.5014.29.1
Jul28° / 16°20.50148.4
Aug29° / 16°30.7013.37.9
Sep26° / 14°72012.28.8
Oct22° / 10°296.5011.17.7
Nov15° / 537.70.610.25.1
Dec10° / 7910.83.79.82.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37525
47624
57723
67822
77822
87921
98020
108119
118119
128317
138416
148416
158614
168614
178614
188812
198812
208911
218911
229010
239010
249010
25919
26919
27928
28937
29937
30937
31946

Chance of precipitation in May

Any precipitation

Chmistâr gets around 31 mm of rain over 7 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 22% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
428
528
628
728
828
928
1028
1127
1227
1326
1425
1524
1623
1722
1821
1920
2018
2118
2217
2316
2415
2515
2614
2714
2813
2913
3012
3112

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 4:53 AM to 4:31 AM, and sunset from 6:13 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.34:536:13
213.44:526:14
313.44:516:15
413.44:506:16
513.54:496:16
613.54:486:17
713.54:476:18
813.54:466:19
913.64:456:20
1013.64:446:20
1113.64:436:21
1213.74:436:22
1313.74:426:23
1413.74:416:23
1513.74:406:24
1613.84:396:25
1713.84:396:26
1813.84:386:26
1913.84:376:27
2013.94:376:28
2113.94:366:29
2213.94:356:29
2313.94:356:30
2413.94:346:31
2514.04:346:32
2614.04:336:32
2714.04:336:33
2814.04:326:34
2914.04:326:34
3014.14:316:35
3114.14:316:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.4 kWh/m².

For context, solar energy here swings from a low near 2.7 kWh/m² to a high of 8.14 kWh/m² in June across the year — May's 7.4 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
16.9Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.1Intense
77.1Intense
87.1Intense
97.2Intense
107.2Intense
117.2Intense
127.3Intense
137.3Intense
147.3Intense
157.4Intense
167.4Intense
177.5Intense
187.5Intense
197.5Intense
207.6Intense
217.6Intense
227.6Intense
237.7Intense
247.7Intense
257.7Intense
267.8Intense
277.8Intense
287.8Intense
297.8Intense
307.9Intense
317.9Intense
Planning a trip in May

Hazard calendar for Chmistâr

In seasonPeak

None of Chmistâr's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chmistâr's rainy season runs November–April, 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 Chmistâr?

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

7.6
Sightseeing
6th-best month of the year
4.7
Beach & pool
6th-best month of the year

May is one of the better times to visit Chmistâr for general sightseeing.

What to pack for Chmistâr in May

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

In May, Chmistâr sees daytime highs around 21°C and nights near 9°C. Pack sun protection. About 7 days see rain.

sun protection

Sea temperature near Chmistâr in May

The nearest coast averages about 21°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 40 km away) is warmest in August at about 28°C and coldest in February near 17°C.

It's comfortable for a long swim from May 3 to Dec 23 — about 7.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb17Cool
Mar17Cool
Apr19Cool
May21Refreshing
Jun25Warm
Jul27Warm
Aug28Tropical
Sep28Warm
Oct26Warm
Nov23Refreshing
Dec21Refreshing

UV index in Chmistâr in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chmistâr peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 20UV 12Jan 11UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May9Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Chmistâr 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 Chmistâr is worst in November — around 58 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 31 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorUnhealthyNov 2258 µg/m³Jul 2231 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb57Unhealthy
Mar52Poor
Apr54Poor
May44Poor
Jun35Poor
Jul31Moderate
Aug31Moderate
Sep41Poor
Oct51Poor
Nov58Unhealthy
Dec57Unhealthy
Location & terrain

Where is Chmistâr?

Chmistâr sits at 34.0°N, 36.0°E, 1,137 m above sea level, in Lebanon. The nearest listed city is Zahle, 17 km away.

ZahleBaalbekAz ZabadānīBsharriJouniehByblosAleyAarsâl

Topography around Chmistâr

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

Within 3 km, the terrain around Chmistâr has significant variations in elevation — a maximum elevation change of 575 m around an average of 1,198 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,731 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,079 m.

The land around Chmistâr is covered by grassland (61%) within 3 km, grassland (57%) and cropland (21%) within 16 km, and grassland (38%) and water (20%) within 80 km.

3 km
575 m
16 km
1,731 m
80 km
3,079 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Zahle 17 km · Baalbek 19 km · Az Zabadānī 28 km · Bsharri 32 km · Jounieh 37 km · Byblos 38 km · Aley 42 km · Aarsâl 44 km

Lebanon travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / G
220 V · 50 Hz
Prices
≈ 38% of US
price level, 2024
GDP per capita
$4,473
2024
Happiness
3.7 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
2.2
per 100k, 2020
Road deaths
16.4
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 477
Religion
Muslim 68%Christian 32%Druze 5%

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 Chmistâr (33.9647°, 36.0175°, elevation 1,137 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).