Issoire weather in May

In May, Issoire sees average daytime highs of 18°C and overnight lows near 7°C, with 83 mm of precipitation across 13.5 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 18% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of May to 15 h 12 min by month's end. Set against the rest of the year, May is Issoire's 8th-clearest and 7th-windiest month. For the whole year in context, see Issoire's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Precipitation
83 mm
13.5 wet days
Daylight
14 h 42 min
5:22 AM – 8:04 PM
Cloud cover
67%
8th clearest
Wind
10 km/h
7th windiest
Solar energy
5.43 kWh/m²
Travel score
5.1
out of 10
Air quality
Excellent
PM10 15 µg/m³ · 2017

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 16°C in the first days to 19°C by the end.

A typical May day in Issoire reaches about 18°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 24°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1166
2166
3166
4166
5166
6166
7166
8176
9177
10177
11177
12177
13177
14177
15187
16187
17187
18187
19187
20188
21188
22198
23198
24198
25198
26198
27199
28199
29199
30209
31209

How May really feels in Issoire

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.

Issoire weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°5711.758.90.3
Feb / -1°4610.44.710.10.8
Mar11° / 4910.32.411.62.7
Apr14° / 74131.513.23.7
May18° / 8313.50.214.75.1
Jun22° / 11°7111.5015.46.3
Jul24° / 13°6510.3015.17.0
Aug24° / 12°7010.2013.97.1
Sep20° / 729.5012.36.3
Oct15° / 7010.70.410.74.5
Nov / 7212.22.19.31.8
Dec / 5711.448.60.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
32971
43070
53070
62971
72971
82971
92971
103070
113070
123169
133169
143268
153268
163367
173466
183466
193664
203763
213763
223862
233862
243961
253961
263961
273961
283862
293862
303763
313763

Chance of precipitation in May

Any precipitationSnow

Issoire gets around 83 mm of rain and snow over 13.5 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 44% and peaks near 49% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1492
2482
3482
4482
5482
6472
7462
8461
9451
10451
11441
12441
13441
14431
15430
16430
17430
18420
19420
20420
21410
22410
23410
24410
25410
26410
27410
28420
29420
30420
31430

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
11991
12991
13991
14991
15991
16982
17982
18982
19973
20973
21964
22964
23955
24955
25946
26946
27937
28928
29919
309010
318911

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 h 12 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 5:43 AM to 5:09 AM, and sunset from 7:45 PM to 8:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:437:45
214.15:427:47
314.15:407:48
414.25:387:49
514.25:377:50
614.35:367:52
714.35:347:53
814.45:337:54
914.45:317:56
1014.45:307:57
1114.55:297:58
1214.55:277:59
1314.65:268:00
1414.65:258:02
1514.75:248:03
1614.75:228:04
1714.75:218:05
1814.85:208:06
1914.85:198:08
2014.85:188:09
2114.95:178:10
2214.95:168:11
2315.05:158:12
2415.05:148:13
2515.05:138:14
2615.05:128:15
2715.15:128:16
2815.15:118:17
2915.15:108:18
3015.25:098:19
3115.25:098:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.43 kWh/m².

For context, solar energy here swings from a low near 1.15 kWh/m² to a high of 6.07 kWh/m² in July across the year — May's 5.43 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
315.6Bright
Planning a trip in May

Is May a good time to visit Issoire?

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

5.1
Sightseeing
5th-best month of the year
1.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Issoire for sightseeing.

What to pack for Issoire in May

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

In May, Issoire sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 14 days see rain.

a warm layerrain gearsun protection

UV index in Issoire in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Issoire peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Issoire?

Issoire sits at 45.5°N, 3.2°E, 393 m above sea level, in France. The nearest listed city is Cournon-d'Auvergne, 22 km away.

Topography around Issoire

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

Within 3 km, the terrain around Issoire has only modest variations in elevation — a maximum elevation change of 205 m around an average of 413 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 797 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,612 m.

The land around Issoire is covered by cropland (34%), trees (23%) and artificial surfaces (21%) within 3 km, trees (35%), grassland (32%) and cropland (29%) within 16 km, and grassland (45%) and trees (44%) within 80 km.

3 km
205 m
16 km
797 m
80 km
1,612 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Cournon-d'Auvergne 22 km · Clermont-Ferrand 29 km · Chamalières 29 km · Riom 40 km · Montbrison 64 km · Vichy 66 km · Le Puy-en-Velay 75 km · Firminy 83 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 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 Issoire (45.5442°, 3.249°, elevation 393 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).