Sérres weather in April

In April, Sérres sees average daytime highs of 18°C and overnight lows near 8°C, with 63 mm of precipitation across 10.4 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 21°C by the end. The sky is clear or mostly clear about 35% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Sérres's 8th-clearest and 1st-windiest month. For the whole year in context, see Sérres's year-round climate.

Daytime high: 18°; 7th warmest
Overnight low: 8°; 6th coldest
Precipitation: 63 mm; 10.4 wet days
Daylight: 13 h 06 min; 5:53 AM – 6:59 PM
Cloud cover: 56%; 8th clearest
Wind: 6 km/h; 1st windiest
Solar energy: 5.24 kWh/m²
Travel score: 5.9; out of 10

Sérres is city in Central Macedonia, Greece.

Density: 97/km²; people per km²

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

← March Sérres year-round climate May →Best places to visit in April

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 21°C by the end.

A typical April day in Sérres reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, April runs about 5°C warmer than March and about 5°C cooler than May.

	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
Avg high (°C)	16	16	16	17	17	17	17	17	17	17	18	18	18	18	18	18	19	19	19	19	19	20	20	20	20	20	21	21	21	21
Avg low (°C)	6	6	6	7	7	7	7	7	7	7	8	8	8	8	8	8	8	8	9	9	9	9	9	9	10	10	10	10	10	10

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

How April really feels in Sérres

Once humidity and wind are folded in, April 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Sérres weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	8° / 0°	56	7.9	2.3	9.4	1.3
Feb	10° / 1°	54	8.5	2	10.4	2.3
Mar	14° / 4°	70	10.2	1.3	11.7	4.1
Apr	18° / 8°	63	10.4	0.1	13.1	5.9
May	24° / 13°	69	10.8	0	14.3	6.9
Jun	28° / 17°	55	9.1	0	14.9	6.3
Jul	31° / 19°	42	6.5	0	14.7	5.3
Aug	31° / 19°	33	5.8	0	13.6	5.3
Sep	26° / 15°	47	6.7	0	12.3	7.5
Oct	20° / 10°	62	7.7	0	10.9	6.8
Nov	14° / 6°	65	8	0.3	9.7	4.2
Dec	9° / 1°	78	8.6	1.6	9.1	1.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 47%.

	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
Clearer (%)	49	49	49	50	50	50	51	52	52	52	52	52	52	53	53	53	54	54	54	55	55	55	55	56	56	57	57	57	57	57
Cloudier (%)	51	51	51	50	50	50	49	48	48	48	48	48	48	47	47	47	46	46	46	45	45	45	45	44	44	43	43	43	43	43

	Clearer (%)	Cloudier (%)
1	49	51
2	49	51
3	49	51
4	50	50
5	50	50
6	50	50
7	51	49
8	52	48
9	52	48
10	52	48
11	52	48
12	52	48
13	52	48
14	53	47
15	53	47
16	53	47
17	54	46
18	54	46
19	54	46
20	55	45
21	55	45
22	55	45
23	55	45
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	57	43
30	57	43

Chance of precipitation in April

Any precipitation

Sérres gets around 63 mm of rain and snow over 10.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 37% 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
Rain chance (%)	34	34	34	34	34	34	35	35	35	35	36	36	36	36	36	37	37	37	36	36	36	35	35	34	34	34	33	33	33	34

	Rain chance (%)
1	34
2	34
3	34
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	36
12	36
13	36
14	36
15	36
16	37
17	37
18	37
19	36
20	36
21	36
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	33
30	34

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 98% 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
Dry (%)	100	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	98	98	98	98	97	97	96	95	95	94	93	92
Comfortable (%)	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	3	3	4	5	5	6	7	8

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	98	2
20	98	2
21	98	2
22	98	2
23	97	3
24	97	3
25	96	4
26	95	5
27	95	5
28	94	6
29	93	7
30	92	8

Wind in April

Winds average 6 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 6 km/h on the calmest days to 6 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
Wind speed (km/h)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 6:18 AM to 5:32 AM, and sunset from 6:43 PM to 7:14 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
Daylight (h)	12.4	12.5	12.5	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	13.0	13.0	13.1	13.1	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.4	13.5	13.5	13.6	13.6	13.7	13.7
Sunrise (AM)	6:18	6:16	6:15	6:13	6:11	6:10	6:08	6:06	6:05	6:03	6:01	6:00	5:58	5:56	5:55	5:53	5:52	5:50	5:48	5:47	5:45	5:44	5:42	5:41	5:39	5:38	5:36	5:35	5:34	5:32
Sunset (PM)	6:43	6:44	6:45	6:46	6:47	6:48	6:49	6:50	6:51	6:52	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:07	7:08	7:09	7:10	7:11	7:12	7:13	7:14

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	6:18	6:43
2	12.5	6:16	6:44
3	12.5	6:15	6:45
4	12.5	6:13	6:46
5	12.6	6:11	6:47
6	12.6	6:10	6:48
7	12.7	6:08	6:49
8	12.7	6:06	6:50
9	12.8	6:05	6:51
10	12.8	6:03	6:52
11	12.9	6:01	6:54
12	12.9	6:00	6:55
13	13.0	5:58	6:56
14	13.0	5:56	6:57
15	13.1	5:55	6:58
16	13.1	5:53	6:59
17	13.1	5:52	7:00
18	13.2	5:50	7:01
19	13.2	5:48	7:02
20	13.3	5:47	7:03
21	13.3	5:45	7:04
22	13.4	5:44	7:05
23	13.4	5:42	7:07
24	13.4	5:41	7:08
25	13.5	5:39	7:09
26	13.5	5:38	7:10
27	13.6	5:36	7:11
28	13.6	5:35	7:12
29	13.7	5:34	7:13
30	13.7	5:32	7:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.24 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 6.8 kWh/m² in June across the year — April's 5.24 kWh/m² falls in the middle.

	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
Solar energy (kWh/m²)	4.6	4.7	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.3	5.3	5.3	5.4	5.4	5.5	5.5	5.5	5.6	5.6	5.7	5.7	5.7	5.8	5.8
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.6	Bright
2	4.7	Bright
3	4.7	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.9	Bright
8	4.9	Bright
9	5.0	Bright
10	5.0	Bright
11	5.1	Bright
12	5.1	Bright
13	5.1	Bright
14	5.2	Bright
15	5.2	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.4	Bright
20	5.4	Bright
21	5.5	Bright
22	5.5	Bright
23	5.5	Bright
24	5.6	Bright
25	5.6	Bright
26	5.7	Bright
27	5.7	Bright
28	5.7	Bright
29	5.8	Bright
30	5.8	Bright

Planning a trip in April

Is April a good time to visit Sérres?

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

5.9

Sightseeing

5th-best month of the year

2.3

Beach & pool

7th-best month of the year

April is a reasonable time to visit Sérres for sightseeing.

What to pack for Sérres in April

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

In April, Sérres sees daytime highs around 18°C and nights near 8°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Sérres in April

The nearest coast averages about 14°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 58 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from May 26 to Oct 24 — about 5 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	14	13	13	14	19	23	26	26	24	21	18	15
Comfort	Bracing	Bracing	Bracing	Bracing	Cool	Refreshing	Warm	Warm	Warm	Refreshing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	14	Bracing
Feb	13	Bracing
Mar	13	Bracing
Apr	14	Bracing
May	19	Cool
Jun	23	Refreshing
Jul	26	Warm
Aug	26	Warm
Sep	24	Warm
Oct	21	Refreshing
Nov	18	Cool
Dec	15	Cool

UV index in Sérres in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sérres peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. 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 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	4	8	6	9	9	9	6	4	2	1
Level	Low	Moderate	Moderate	Very high	High	Very high	Very high	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	4	Moderate
Apr	8	Very high
May	6	High
Jun	9	Very high
Jul	9	Very high
Aug	9	Very high
Sep	6	High
Oct	4	Moderate
Nov	2	Moderate
Dec	1	Low

Air quality in Sérres in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Sérres is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 9 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)	12	13	15	15	14	14	12	13	11	10	11	9
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	12	Good
Feb	13	Moderate
Mar	15	Moderate
Apr	15	Moderate
May	14	Moderate
Jun	14	Moderate
Jul	12	Moderate
Aug	13	Moderate
Sep	11	Good
Oct	10	Good
Nov	11	Good
Dec	9	Good

Location & terrain

Where is Sérres?

Sérres sits at 41.1°N, 23.5°E, 41 m above sea level, in Greece. The nearest listed city is Petrich, 45 km away.

Topography around Sérres

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

Within 3 km, the terrain around Sérres has only modest variations in elevation — a maximum elevation change of 194 m around an average of 64 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,853 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,876 m.

The land around Sérres is covered by artificial surfaces (29%), cropland (25%) and trees (21%) within 3 km, cropland (50%), trees (20%) and grassland (20%) within 16 km, and trees (50%) and cropland (21%) within 80 km.

3 km

194 m

artificial surfaces 29%

16 km

1,853 m

cropland 50%

80 km

2,876 m

trees 50%

treesshrubsgrasslandcroplandartificial surfaceswater

← March Sérres year-round climate May →Best places to visit in April

April weather nearby: Petrich 45 km · Dráma 51 km · Lagkadás 55 km · Gotse Delchev 56 km · Kilkís 57 km · Sandanski 58 km · Chortiátis 65 km · Oraiókastro 66 km

Greece travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 60% of US; price level, 2025
GDP per capita: $26,948; 2025
Happiness: 5.7 / 10; World Happiness, 2025
Safe drinking water: 97%; of population, 2024
Homicide rate: 0.8; per 100k, 2023
Road deaths: 8.3; per 100k/yr, 2019
Income group: High; World Bank
English: High; EF EPI 592
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 Sérres (41.085°, 23.5476°, elevation 41 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).

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

	Clearer (%)	Cloudier (%)
1	49	51
2	49	51
3	49	51
4	50	50
5	50	50
6	50	50
7	51	49
8	52	48
9	52	48
10	52	48
11	52	48
12	52	48
13	52	48
14	53	47
15	53	47
16	53	47
17	54	46
18	54	46
19	54	46
20	55	45
21	55	45
22	55	45
23	55	45
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	34
2	34
3	34
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	36
12	36
13	36
14	36
15	36
16	37
17	37
18	37
19	36
20	36
21	36
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	33
30	34

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	98	2
20	98	2
21	98	2
22	98	2
23	97	3
24	97	3
25	96	4
26	95	5
27	95	5
28	94	6
29	93	7
30	92	8

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

	Clearer (%)	Cloudier (%)
1	49	51
2	49	51
3	49	51
4	50	50
5	50	50
6	50	50
7	51	49
8	52	48
9	52	48
10	52	48
11	52	48
12	52	48
13	52	48
14	53	47
15	53	47
16	53	47
17	54	46
18	54	46
19	54	46
20	55	45
21	55	45
22	55	45
23	55	45
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	34
2	34
3	34
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	36
12	36
13	36
14	36
15	36
16	37
17	37
18	37
19	36
20	36
21	36
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	33
30	34

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	98	2
20	98	2
21	98	2
22	98	2
23	97	3
24	97	3
25	96	4
26	95	5
27	95	5
28	94	6
29	93	7
30	92	8

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

	Clearer (%)	Cloudier (%)
1	49	51
2	49	51
3	49	51
4	50	50
5	50	50
6	50	50
7	51	49
8	52	48
9	52	48
10	52	48
11	52	48
12	52	48
13	52	48
14	53	47
15	53	47
16	53	47
17	54	46
18	54	46
19	54	46
20	55	45
21	55	45
22	55	45
23	55	45
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	34
2	34
3	34
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	36
12	36
13	36
14	36
15	36
16	37
17	37
18	37
19	36
20	36
21	36
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	33
30	34

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	98	2
20	98	2
21	98	2
22	98	2
23	97	3
24	97	3
25	96	4
26	95	5
27	95	5
28	94	6
29	93	7
30	92	8