Keszthely weather in May

In May, Keszthely sees average daytime highs of 21°C and overnight lows near 12°C, with 70 mm of rain across 11.2 wet days and about 14.8 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 18 min by month's end. Set against the rest of the year, May is Keszthely's 5th-clearest and 4th-windiest month. For the whole year in context, see Keszthely's year-round climate.

Daytime high
21°
5th warmest
Overnight low
12°
8th coldest
Rainfall
70 mm
11.2 wet days
Daylight
14 h 48 min
4:23 AM – 7:12 PM
Cloud cover
59%
5th clearest
Wind
11 km/h
4th windiest
Solar energy
5.61 kWh/m²
Travel score
6.4
out of 10

Keszthely is city in Hungary.

Founded
1247

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical May day in Keszthely reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12010
22010
32011
42011
52011
62011
72011
82111
92111
102111
112111
122111
132112
142112
152112
162112
172112
182112
192112
202112
212212
222213
232213
242213
252213
262213
272213
282313
292314
302314
312314

How May really feels in Keszthely

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.

Keszthely weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°367.138.80.0
Feb / -1°427.83.4100.4
Mar11° / 458.51.511.62.8
Apr17° / 478.70.313.35.3
May21° / 12°7011.2014.86.4
Jun25° / 16°7410.7015.66.8
Jul27° / 17°7310.4015.36.6
Aug27° / 17°659.10146.9
Sep21° / 13°728.8012.46.8
Oct16° / 588.30.110.65.1
Nov / 608.81.39.21.9
Dec / -1°53938.40.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
44951
55050
65050
74951
84951
94951
104951
115050
125050
135050
144951
154951
165050
174951
185050
195050
205050
215050
225050
235050
245149
255050
265149
275149
285149
295149
305149
315050

Chance of precipitation in May

Any precipitation

Keszthely gets around 70 mm of rain over 11.2 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
232
332
433
534
635
736
836
937
1037
1138
1238
1338
1438
1538
1638
1738
1838
1938
2037
2137
2237
2336
2436
2535
2635
2735
2835
2936
3036
3136

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
194600
294600
393700
493700
592800
692800
791900
891900
9901000
10901000
11891100
12891100
13891100
14871210
15871210
16861310
17841420
18831520
19811630
20801730
21781840
22771940
23752050
24732160
25712270
26692380
27672490
286525100
296127120
305828131
315629141

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 4:44 AM to 4:08 AM, and sunset from 6:52 PM to 7:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:446:52
214.24:436:53
314.24:416:55
414.34:406:56
514.34:386:58
614.44:366:59
714.44:357:00
814.54:347:02
914.54:327:03
1014.64:317:04
1114.64:297:05
1214.64:287:07
1314.74:277:08
1414.74:257:09
1514.84:247:11
1614.84:237:12
1714.94:227:13
1814.94:207:14
1914.94:197:15
2015.04:187:17
2115.04:177:18
2215.14:167:19
2315.14:157:20
2415.14:147:21
2515.24:137:22
2615.24:127:23
2715.24:117:25
2815.34:107:26
2915.34:107:27
3015.34:097:28
3115.34:087:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.61 kWh/m².

For context, solar energy here swings from a low near 1.01 kWh/m² to a high of 5.97 kWh/m² in June across the year — May's 5.61 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.9Bright
Planning a trip in May

Is May a good time to visit Keszthely?

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

6.4
Sightseeing
5th-best month of the year
4.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Keszthely for sightseeing.

What to pack for Keszthely in May

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

In May, Keszthely sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Keszthely in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Keszthely peaks around July 16 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 16UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Keszthely 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 Keszthely is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1315 µg/m³Dec 1310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Good
Mar15Moderate
Apr15Moderate
May14Moderate
Jun14Moderate
Jul13Moderate
Aug13Moderate
Sep10Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Keszthely?

Keszthely sits at 46.8°N, 17.2°E, 128 m above sea level, in Hungary. The nearest listed city is Tapolca, 20 km away.

ZalaegerszegNagykanizsaAjkaSárvárKaposvárVeszprémSiófok

Topography around Keszthely

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

Within 3 km, the terrain around Keszthely has only modest variations in elevation — a maximum elevation change of 96 m around an average of 125 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 361 m; within 80 km, significant variations in elevation — a maximum elevation change of 589 m.

The land around Keszthely is covered by cropland (23%), grassland (22%) and trees (21%) within 3 km, trees (38%), cropland (21%) and grassland (20%) within 16 km, and trees (41%) and cropland (41%) within 80 km.

3 km
96 m
16 km
361 m
80 km
589 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Tapolca 20 km · Zalaegerszeg 31 km · Nagykanizsa 40 km · Ajka 44 km · Sárvár 59 km · Kaposvár 62 km · Veszprém 62 km · Siófok 64 km

Hungary travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 52% of US
price level, 2025
GDP per capita
$25,907
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
7.7
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 590
Religion
no answer 40%Catholic 30%none 16%Calvinist 10%

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 Keszthely (46.7681°, 17.2432°, elevation 128 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).