Challans weather in December

In December, Challans sees average daytime highs of 10°C and overnight lows near 6°C, with 81 mm of precipitation across 12.4 wet days and about 8.4 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 36 min at the start of December to 8 h 24 min by month's end. Set against the rest of the year, December is Challans's 11th-clearest and 1st-windiest month. For the whole year in context, see Challans's year-round climate.

Daytime high: 10°; 10th warmest
Overnight low: 6°; 3rd coldest
Precipitation: 81 mm; 12.4 wet days
Daylight: 8 h 24 min; 8:53 AM – 5:14 PM
Cloud cover: 70%; 11th clearest
Wind: 21 km/h; 1st windiest
Solar energy: 1.04 kWh/m²
Travel score: 2.2; out of 10

Challans is human settlement in France.

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

← November Challans year-round climate January →Best places to visit in December

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical December day in Challans reaches about 10°C in the afternoon and slips back to 6°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 14°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Avg low (°C)	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6

	Avg high (°C)	Avg low (°C)
1	11	7
2	11	7
3	11	7
4	11	7
5	11	7
6	11	7
7	11	7
8	11	7
9	10	7
10	10	7
11	10	7
12	10	7
13	10	6
14	10	6
15	10	6
16	10	6
17	10	6
18	10	6
19	10	6
20	10	6
21	10	6
22	10	6
23	10	6
24	10	6
25	10	6
26	10	6
27	10	6
28	10	6
29	10	6
30	10	6
31	10	6

Challans weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	9° / 6°	71	11.7	8.8	1.9
Feb	10° / 5°	53	9.6	10	2.1
Mar	12° / 7°	50	10.2	11.6	3.2
Apr	14° / 9°	47	10.1	13.3	4.3
May	18° / 12°	52	9.9	14.8	5.6
Jun	20° / 15°	39	8.3	15.6	6.5
Jul	22° / 16°	37	8.1	15.3	7.2
Aug	22° / 16°	43	7.6	14	7.3
Sep	20° / 14°	52	8.1	12.4	6.7
Oct	17° / 12°	76	12.1	10.6	5.0
Nov	13° / 9°	81	12.6	9.2	3.3
Dec	10° / 6°	81	12.4	8.4	2.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 70%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	34	34	34	35	35	35	35	34	34	33	33	33	30	30	30	29	28	28	28	28	28	27	27	26	26	27	27	27	27	27	27
Cloudier (%)	66	66	66	65	65	65	65	66	66	67	67	67	70	70	70	71	72	72	72	72	72	73	73	74	74	73	73	73	73	73	73

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	33	67
11	33	67
12	33	67
13	30	70
14	30	70
15	30	70
16	29	71
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	27	73
23	27	73
24	26	74
25	26	74
26	27	73
27	27	73
28	27	73
29	27	73
30	27	73
31	27	73

Chance of precipitation in December

Any precipitation

Challans gets around 81 mm of rain and snow over 12.4 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 42% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	39	39	39	39	39	38	38	38	38	38	38	38	38	38	38	39	39	39	39	40	40	41	41	42	42	42	42	42	42	42	42

	Rain chance (%)
1	39
2	39
3	39
4	39
5	39
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	39
17	39
18	39
19	39
20	40
21	40
22	41
23	41
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	42

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in December

Winds average 21 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	20	20	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	20	breezy
2	20	breezy
3	20	breezy
4	20	breezy
5	21	breezy
6	21	breezy
7	21	breezy
8	21	breezy
9	21	breezy
10	21	breezy
11	21	breezy
12	21	breezy
13	21	breezy
14	21	breezy
15	21	breezy
16	21	breezy
17	21	breezy
18	21	breezy
19	21	breezy
20	21	breezy
21	21	breezy
22	21	breezy
23	21	breezy
24	21	breezy
25	21	breezy
26	21	breezy
27	21	breezy
28	21	breezy
29	21	breezy
30	21	breezy
31	21	breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 36 min at the start of December to 8 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 8:39 AM to 8:59 AM, and sunset from 5:16 PM to 5:22 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	8.6	8.6	8.6	8.5	8.5	8.5	8.5	8.5	8.4	8.4	8.4	8.4	8.4	8.4	8.4	8.4	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.4	8.4	8.4	8.4
Sunrise (AM)	8:39	8:40	8:41	8:42	8:43	8:44	8:45	8:46	8:47	8:48	8:49	8:50	8:51	8:52	8:52	8:53	8:54	8:54	8:55	8:56	8:56	8:57	8:57	8:58	8:58	8:58	8:59	8:59	8:59	8:59	8:59
Sunset (PM)	5:16	5:15	5:15	5:15	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:15	5:15	5:15	5:16	5:16	5:17	5:17	5:18	5:19	5:19	5:20	5:21	5:21	5:22

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	8.6	8:39	5:16
2	8.6	8:40	5:15
3	8.6	8:41	5:15
4	8.5	8:42	5:15
5	8.5	8:43	5:14
6	8.5	8:44	5:14
7	8.5	8:45	5:14
8	8.5	8:46	5:14
9	8.4	8:47	5:14
10	8.4	8:48	5:14
11	8.4	8:49	5:14
12	8.4	8:50	5:14
13	8.4	8:51	5:14
14	8.4	8:52	5:14
15	8.4	8:52	5:14
16	8.4	8:53	5:14
17	8.3	8:54	5:14
18	8.3	8:54	5:15
19	8.3	8:55	5:15
20	8.3	8:56	5:15
21	8.3	8:56	5:16
22	8.3	8:57	5:16
23	8.3	8:57	5:17
24	8.3	8:58	5:17
25	8.3	8:58	5:18
26	8.3	8:58	5:19
27	8.3	8:59	5:19
28	8.4	8:59	5:20
29	8.4	8:59	5:21
30	8.4	8:59	5:21
31	8.4	8:59	5:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.04 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.04 kWh/m² to a high of 6.28 kWh/m² in June across the year — December's 1.04 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	1.2	1.2	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Level	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	1.2	Dim
2	1.2	Dim
3	1.1	Dim
4	1.1	Dim
5	1.1	Dim
6	1.1	Dim
7	1.1	Dim
8	1.1	Dim
9	1.1	Dim
10	1.1	Dim
11	1.1	Dim
12	1.1	Dim
13	1.1	Dim
14	1.0	Dim
15	1.0	Dim
16	1.0	Dim
17	1.0	Dim
18	1.0	Dim
19	1.0	Dim
20	1.0	Dim
21	1.0	Dim
22	1.0	Dim
23	1.0	Dim
24	1.0	Dim
25	1.0	Dim
26	1.0	Dim
27	1.0	Dim
28	1.0	Dim
29	1.0	Dim
30	1.0	Dim
31	1.0	Dim

Planning a trip in December

Is December a good time to visit Challans?

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

2.2

Sightseeing

10th-best month of the year

0.0

Beach & pool

9th-best month of the year

December is a weaker month for outdoor sightseeing in Challans.

What to pack for Challans in December

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

In December, Challans sees daytime highs around 10°C and nights near 6°C. Pack a warm layer. Worth having: rain gear and a windbreaker. About 12 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Challans in December

The nearest coast averages about 11°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 19°C and coldest in February near 9°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	10	9	10	12	14	17	18	19	18	16	14	11
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Cool	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	10	Bracing
Feb	9	Bracing
Mar	10	Bracing
Apr	12	Bracing
May	14	Bracing
Jun	17	Cool
Jul	18	Cool
Aug	19	Cool
Sep	18	Cool
Oct	16	Cool
Nov	14	Bracing
Dec	11	Bracing

UV index in Challans in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Challans peaks around August 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	4	5	6	7	7	7	5	3	2	1
Level	Low	Low	Moderate	High	High	High	High	Very high	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	4	Moderate
Apr	5	High
May	6	High
Jun	7	High
Jul	7	High
Aug	7	Very high
Sep	5	Moderate
Oct	3	Moderate
Nov	2	Low
Dec	1	Low

Location & terrain

Where is Challans?

Challans sits at 46.8°N, 1.9°W, 13 m above sea level, in France. The nearest listed city is Les Sables-d'Olonne, 39 km away.

Topography around Challans

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

Within 3 km, the terrain around Challans has only modest variations in elevation — a maximum elevation change of 44 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, significant variations in elevation — a maximum elevation change of 340 m.

The land around Challans is covered by grassland (37%), artificial surfaces (30%) and trees (26%) within 3 km, grassland (54%) and cropland (22%) within 16 km, and water (36%), grassland (26%) and cropland (22%) within 80 km.

3 km

44 m

grassland 37%

16 km

84 m

grassland 54%

80 km

340 m

water 36%

treesgrasslandcroplandartificial surfaceswaterwetland

← November Challans year-round climate January →Best places to visit in December

December weather nearby: Les Sables-d'Olonne 39 km · La Roche-sur-Yon 40 km · Bouguenais 42 km · Couëron 43 km · Saint-Herblain 44 km · Rezé 45 km · Vertou 47 km · Nantes 48 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

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 Challans (46.8458°, -1.8794°, elevation 13 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	11	7
2	11	7
3	11	7
4	11	7
5	11	7
6	11	7
7	11	7
8	11	7
9	10	7
10	10	7
11	10	7
12	10	7
13	10	6
14	10	6
15	10	6
16	10	6
17	10	6
18	10	6
19	10	6
20	10	6
21	10	6
22	10	6
23	10	6
24	10	6
25	10	6
26	10	6
27	10	6
28	10	6
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	33	67
11	33	67
12	33	67
13	30	70
14	30	70
15	30	70
16	29	71
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	27	73
23	27	73
24	26	74
25	26	74
26	27	73
27	27	73
28	27	73
29	27	73
30	27	73
31	27	73

	Rain chance (%)
1	39
2	39
3	39
4	39
5	39
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	39
17	39
18	39
19	39
20	40
21	40
22	41
23	41
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	42

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.2	Dim
2	1.2	Dim
3	1.1	Dim
4	1.1	Dim
5	1.1	Dim
6	1.1	Dim
7	1.1	Dim
8	1.1	Dim
9	1.1	Dim
10	1.1	Dim
11	1.1	Dim
12	1.1	Dim
13	1.1	Dim
14	1.0	Dim
15	1.0	Dim
16	1.0	Dim
17	1.0	Dim
18	1.0	Dim
19	1.0	Dim
20	1.0	Dim
21	1.0	Dim
22	1.0	Dim
23	1.0	Dim
24	1.0	Dim
25	1.0	Dim
26	1.0	Dim
27	1.0	Dim
28	1.0	Dim
29	1.0	Dim
30	1.0	Dim
31	1.0	Dim

	Avg high (°C)	Avg low (°C)
1	11	7
2	11	7
3	11	7
4	11	7
5	11	7
6	11	7
7	11	7
8	11	7
9	10	7
10	10	7
11	10	7
12	10	7
13	10	6
14	10	6
15	10	6
16	10	6
17	10	6
18	10	6
19	10	6
20	10	6
21	10	6
22	10	6
23	10	6
24	10	6
25	10	6
26	10	6
27	10	6
28	10	6
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	33	67
11	33	67
12	33	67
13	30	70
14	30	70
15	30	70
16	29	71
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	27	73
23	27	73
24	26	74
25	26	74
26	27	73
27	27	73
28	27	73
29	27	73
30	27	73
31	27	73

	Rain chance (%)
1	39
2	39
3	39
4	39
5	39
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	39
17	39
18	39
19	39
20	40
21	40
22	41
23	41
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	42

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.2	Dim
2	1.2	Dim
3	1.1	Dim
4	1.1	Dim
5	1.1	Dim
6	1.1	Dim
7	1.1	Dim
8	1.1	Dim
9	1.1	Dim
10	1.1	Dim
11	1.1	Dim
12	1.1	Dim
13	1.1	Dim
14	1.0	Dim
15	1.0	Dim
16	1.0	Dim
17	1.0	Dim
18	1.0	Dim
19	1.0	Dim
20	1.0	Dim
21	1.0	Dim
22	1.0	Dim
23	1.0	Dim
24	1.0	Dim
25	1.0	Dim
26	1.0	Dim
27	1.0	Dim
28	1.0	Dim
29	1.0	Dim
30	1.0	Dim
31	1.0	Dim

	Avg high (°C)	Avg low (°C)
1	11	7
2	11	7
3	11	7
4	11	7
5	11	7
6	11	7
7	11	7
8	11	7
9	10	7
10	10	7
11	10	7
12	10	7
13	10	6
14	10	6
15	10	6
16	10	6
17	10	6
18	10	6
19	10	6
20	10	6
21	10	6
22	10	6
23	10	6
24	10	6
25	10	6
26	10	6
27	10	6
28	10	6
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	33	67
11	33	67
12	33	67
13	30	70
14	30	70
15	30	70
16	29	71
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	27	73
23	27	73
24	26	74
25	26	74
26	27	73
27	27	73
28	27	73
29	27	73
30	27	73
31	27	73

	Rain chance (%)
1	39
2	39
3	39
4	39
5	39
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	39
17	39
18	39
19	39
20	40
21	40
22	41
23	41
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	42

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.2	Dim
2	1.2	Dim
3	1.1	Dim
4	1.1	Dim
5	1.1	Dim
6	1.1	Dim
7	1.1	Dim
8	1.1	Dim
9	1.1	Dim
10	1.1	Dim
11	1.1	Dim
12	1.1	Dim
13	1.1	Dim
14	1.0	Dim
15	1.0	Dim
16	1.0	Dim
17	1.0	Dim
18	1.0	Dim
19	1.0	Dim
20	1.0	Dim
21	1.0	Dim
22	1.0	Dim
23	1.0	Dim
24	1.0	Dim
25	1.0	Dim
26	1.0	Dim
27	1.0	Dim
28	1.0	Dim
29	1.0	Dim
30	1.0	Dim
31	1.0	Dim