Timimoun weather in May

In May, Timimoun sees average daytime highs of 36°C and overnight lows near 22°C, with 1 mm of rain across 0.2 wet days and about 13.4 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 34°C in the first days to 38°C by the end. The sky is clear or mostly clear about 74% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of May to 13 h 42 min by month's end. Set against the rest of the year, May is Timimoun's 9th-clearest and 1st-windiest month. For the whole year in context, see Timimoun's year-round climate.

Daytime high: 36°; 5th warmest
Overnight low: 22°; 8th coldest
Rainfall: 1 mm; 0.2 wet days
Daylight: 13 h 30 min; 6:12 AM – 7:39 PM
Cloud cover: 24%; 9th clearest
Wind: 18 km/h; 1st windiest
Solar energy: 7.87 kWh/m²
Travel score: 2.4; out of 10

Timimoun is town in Timimoun Province, Algeria.

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

← April Timimoun year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 34°C in the first days to 38°C by the end.

A typical May day in Timimoun reaches about 36°C in the afternoon and slips back to 22°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 41°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

	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)	34	34	34	34	35	35	35	35	35	35	36	36	36	36	36	36	37	37	37	37	37	37	37	38	38	38	38	38	39	39	39
Avg low (°C)	19	19	20	20	20	20	20	20	21	21	21	21	21	21	22	22	22	22	22	23	23	23	23	23	23	23	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	34	19
2	34	19
3	34	20
4	34	20
5	35	20
6	35	20
7	35	20
8	35	20
9	35	21
10	35	21
11	36	21
12	36	21
13	36	21
14	36	21
15	36	22
16	36	22
17	37	22
18	37	22
19	37	22
20	37	23
21	37	23
22	37	23
23	37	23
24	38	23
25	38	23
26	38	23
27	38	24
28	38	24
29	39	24
30	39	24
31	39	24

How May really feels in Timimoun

Once humidity and wind are folded in, May averages 31 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Timimoun weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	19° / 5°	3	0.7	10.3	8.1
Feb	22° / 8°	2	0.6	10.9	8.9
Mar	26° / 12°	2	0.5	11.8	8.7
Apr	31° / 17°	3	0.2	12.7	5.7
May	36° / 22°	1	0.2	13.4	2.4
Jun	41° / 26°	0	0	13.8	0.1
Jul	45° / 29°	0	0	13.7	0.0
Aug	43° / 29°	0	0	13	0.0
Sep	39° / 25°	2	0.4	12.2	0.8
Oct	32° / 19°	2	0.4	11.3	5.1
Nov	25° / 11°	2	0.4	10.5	8.9
Dec	20° / 6°	2	0.4	10.2	8.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 17%.

	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 (%)	84	84	84	84	84	84	84	83	83	83	83	82	82	81	81	82	82	82	82	82	82	82	82	82	82	82	84	84	84	85	85
Cloudier (%)	16	16	16	16	16	16	16	17	17	17	17	18	18	19	19	18	18	18	18	18	18	18	18	18	18	18	16	16	16	15	15

	Clearer (%)	Cloudier (%)
1	84	16
2	84	16
3	84	16
4	84	16
5	84	16
6	84	16
7	84	16
8	83	17
9	83	17
10	83	17
11	83	17
12	82	18
13	82	18
14	81	19
15	81	19
16	82	18
17	82	18
18	82	18
19	82	18
20	82	18
21	82	18
22	82	18
23	82	18
24	82	18
25	82	18
26	82	18
27	84	16
28	84	16
29	84	16
30	85	15
31	85	15

Chance of precipitation in May

Any precipitation

Timimoun gets around 1 mm of rain over 0.2 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 0% and peaks near 1% on the wettest days.

	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 (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1

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

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 99% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	99	99	99	99	99	99	99	99	99
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
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	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

Wind in May

Winds average 18 km/h in May, the windiest month of the year.

Across May, daily wind ranges from about 17 km/h on the calmest days to 18 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)	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	17
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 06 min at the start of May to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 6:23 AM to 6:05 AM, and sunset from 7:30 PM to 7:48 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)	13.1	13.1	13.2	13.2	13.2	13.2	13.3	13.3	13.3	13.3	13.4	13.4	13.4	13.4	13.4	13.5	13.5	13.5	13.5	13.5	13.6	13.6	13.6	13.6	13.6	13.6	13.7	13.7	13.7	13.7	13.7
Sunrise (AM)	6:23	6:22	6:21	6:20	6:19	6:19	6:18	6:17	6:16	6:16	6:15	6:14	6:13	6:13	6:12	6:12	6:11	6:10	6:10	6:09	6:09	6:08	6:08	6:07	6:07	6:07	6:06	6:06	6:05	6:05	6:05
Sunset (PM)	7:30	7:30	7:31	7:31	7:32	7:33	7:33	7:34	7:35	7:35	7:36	7:37	7:37	7:38	7:38	7:39	7:40	7:40	7:41	7:42	7:42	7:43	7:43	7:44	7:45	7:45	7:46	7:46	7:47	7:47	7:48

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.1	6:23	7:30
2	13.1	6:22	7:30
3	13.2	6:21	7:31
4	13.2	6:20	7:31
5	13.2	6:19	7:32
6	13.2	6:19	7:33
7	13.3	6:18	7:33
8	13.3	6:17	7:34
9	13.3	6:16	7:35
10	13.3	6:16	7:35
11	13.4	6:15	7:36
12	13.4	6:14	7:37
13	13.4	6:13	7:37
14	13.4	6:13	7:38
15	13.4	6:12	7:38
16	13.5	6:12	7:39
17	13.5	6:11	7:40
18	13.5	6:10	7:40
19	13.5	6:10	7:41
20	13.5	6:09	7:42
21	13.6	6:09	7:42
22	13.6	6:08	7:43
23	13.6	6:08	7:43
24	13.6	6:07	7:44
25	13.6	6:07	7:45
26	13.6	6:07	7:45
27	13.7	6:06	7:46
28	13.7	6:06	7:46
29	13.7	6:05	7:47
30	13.7	6:05	7:47
31	13.7	6:05	7:48

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.87 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 8.08 kWh/m² in June across the year — May's 7.87 kWh/m² sits near the top of that range.

	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)	7.7	7.7	7.8	7.8	7.8	7.8	7.8	7.8	7.8	7.8	7.8	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	7.9	8.0	8.0	8.0	8.0	8.0
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	7.7	Intense
2	7.7	Intense
3	7.8	Intense
4	7.8	Intense
5	7.8	Intense
6	7.8	Intense
7	7.8	Intense
8	7.8	Intense
9	7.8	Intense
10	7.8	Intense
11	7.8	Intense
12	7.9	Intense
13	7.9	Intense
14	7.9	Intense
15	7.9	Intense
16	7.9	Intense
17	7.9	Intense
18	7.9	Intense
19	7.9	Intense
20	7.9	Intense
21	7.9	Intense
22	7.9	Intense
23	7.9	Intense
24	7.9	Intense
25	7.9	Intense
26	7.9	Intense
27	8.0	Intense
28	8.0	Intense
29	8.0	Intense
30	8.0	Intense
31	8.0	Intense

Planning a trip in May

Hazard calendar for Timimoun

In seasonPeak

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

Timimoun sees seasonal dust haze (February–October), heaviest in June.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is May a good time to visit Timimoun?

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

2.4

Sightseeing

8th-best month of the year

6.0

Beach & pool

5th-best month of the year

May is a weaker month for outdoor sightseeing in Timimoun. The water and warmth also suit a beach or pool day.

What to pack for Timimoun in May

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

In May, Timimoun sees daytime highs around 36°C and nights near 22°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Timimoun 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 Timimoun peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	5	6	8	9	9	11	11	10	9	7	5	4
Level	Moderate	High	Very high	Very high	Very high	Extreme	Extreme	Very high	Very high	Very high	Moderate	Moderate

	UV index (midday)	Level
Jan	5	Moderate
Feb	6	High
Mar	8	Very high
Apr	9	Very high
May	9	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	10	Very high
Sep	9	Very high
Oct	7	Very high
Nov	5	Moderate
Dec	4	Moderate

Air quality in Timimoun 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 Timimoun is worst in April — around 87 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (November, 42 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	42	71	70	87	77	76	67	67	66	59	42	51
Level	Poor	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor

	PM2.5 (µg/m³)	Level
Jan	42	Poor
Feb	71	Unhealthy
Mar	70	Unhealthy
Apr	87	Unhealthy
May	77	Unhealthy
Jun	76	Unhealthy
Jul	67	Unhealthy
Aug	67	Unhealthy
Sep	66	Unhealthy
Oct	59	Unhealthy
Nov	42	Poor
Dec	51	Poor

Location & terrain

Where is Timimoun?

Timimoun sits at 29.3°N, 0.2°E, 263 m above sea level, in Algeria. The nearest listed city is Adrar, 163 km away.

Topography around Timimoun

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

Within 3 km, the terrain around Timimoun has only modest variations in elevation — a maximum elevation change of 106 m around an average of 270 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 172 m; within 80 km, significant variations in elevation — a maximum elevation change of 314 m.

The land around Timimoun is covered by bare terrain (75%) within 3 km, bare terrain (98%) within 16 km, and bare terrain (100%) within 80 km.

3 km

106 m

bare terrain 75%

16 km

172 m

bare terrain 98%

80 km

314 m

bare terrain 100%

treesartificial surfacesbare terrain

← April Timimoun year-round climate June →Best places to visit in May

May weather nearby: Adrar 163 km · Aoulef 269 km · Reggane 283 km · El Menia 294 km · In Salah 318 km · Béchar 352 km · Aïn Sefra 395 km · El Abiodh Sidi Cheikh 405 km

Algeria travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 33% of US; price level, 2025
GDP per capita: $6,051; 2025
Happiness: 5.7 / 10; World Happiness, 2025
Safe drinking water: 69%; of population, 2024
Homicide rate: 1.2; per 100k, 2023
Road deaths: 20.9; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 468
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 Timimoun (29.2642°, 0.2358°, elevation 263 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).

	Avg high (°C)	Avg low (°C)
1	34	19
2	34	19
3	34	20
4	34	20
5	35	20
6	35	20
7	35	20
8	35	20
9	35	21
10	35	21
11	36	21
12	36	21
13	36	21
14	36	21
15	36	22
16	36	22
17	37	22
18	37	22
19	37	22
20	37	23
21	37	23
22	37	23
23	37	23
24	38	23
25	38	23
26	38	23
27	38	24
28	38	24
29	39	24
30	39	24
31	39	24

	Clearer (%)	Cloudier (%)
1	84	16
2	84	16
3	84	16
4	84	16
5	84	16
6	84	16
7	84	16
8	83	17
9	83	17
10	83	17
11	83	17
12	82	18
13	82	18
14	81	19
15	81	19
16	82	18
17	82	18
18	82	18
19	82	18
20	82	18
21	82	18
22	82	18
23	82	18
24	82	18
25	82	18
26	82	18
27	84	16
28	84	16
29	84	16
30	85	15
31	85	15

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
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	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	34	19
2	34	19
3	34	20
4	34	20
5	35	20
6	35	20
7	35	20
8	35	20
9	35	21
10	35	21
11	36	21
12	36	21
13	36	21
14	36	21
15	36	22
16	36	22
17	37	22
18	37	22
19	37	22
20	37	23
21	37	23
22	37	23
23	37	23
24	38	23
25	38	23
26	38	23
27	38	24
28	38	24
29	39	24
30	39	24
31	39	24

	Clearer (%)	Cloudier (%)
1	84	16
2	84	16
3	84	16
4	84	16
5	84	16
6	84	16
7	84	16
8	83	17
9	83	17
10	83	17
11	83	17
12	82	18
13	82	18
14	81	19
15	81	19
16	82	18
17	82	18
18	82	18
19	82	18
20	82	18
21	82	18
22	82	18
23	82	18
24	82	18
25	82	18
26	82	18
27	84	16
28	84	16
29	84	16
30	85	15
31	85	15

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
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	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	34	19
2	34	19
3	34	20
4	34	20
5	35	20
6	35	20
7	35	20
8	35	20
9	35	21
10	35	21
11	36	21
12	36	21
13	36	21
14	36	21
15	36	22
16	36	22
17	37	22
18	37	22
19	37	22
20	37	23
21	37	23
22	37	23
23	37	23
24	38	23
25	38	23
26	38	23
27	38	24
28	38	24
29	39	24
30	39	24
31	39	24

	Clearer (%)	Cloudier (%)
1	84	16
2	84	16
3	84	16
4	84	16
5	84	16
6	84	16
7	84	16
8	83	17
9	83	17
10	83	17
11	83	17
12	82	18
13	82	18
14	81	19
15	81	19
16	82	18
17	82	18
18	82	18
19	82	18
20	82	18
21	82	18
22	82	18
23	82	18
24	82	18
25	82	18
26	82	18
27	84	16
28	84	16
29	84	16
30	85	15
31	85	15

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
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	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1