Selva Alegre weather in September

In September, Selva Alegre sees average daytime highs of 17°C and overnight lows near 4°C, with 12 mm of precipitation across 3.8 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 64% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Selva Alegre's 4th-clearest and 1st-windiest month. For the whole year in context, see Selva Alegre's year-round climate.

Daytime high: 17°; 2nd warmest
Overnight low: 4°; 5th coldest
Precipitation: 12 mm; 3.8 wet days
Daylight: 11 h 54 min; 5:43 AM – 5:38 PM
Cloud cover: 32%; 4th clearest
Wind: 6 km/h; 1st windiest
Solar energy: 7.36 kWh/m²
Travel score: 6.7; out of 10

Selva Alegre is city in Arequipa, Peru.

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

← August Selva Alegre year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical September day in Selva Alegre reaches about 17°C in the afternoon and slips back to 4°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 19°C. Set against its neighbours, September runs on par with August and on par with October.

	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)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17
Avg low (°C)	3	3	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5

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

How September really feels in Selva Alegre

Once humidity and wind are folded in, September 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

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

Selva Alegre weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	14° / 7°	210	27.7	0.3	12.9	2.3
Feb	14° / 7°	222	26.9	0.1	12.5	2.1
Mar	14° / 6°	190	28.6	0	12.1	2.2
Apr	15° / 5°	86	19.9	0	11.6	3.4
May	16° / 3°	14	4.9	0	11.2	5.8
Jun	16° / 2°	3	0.9	0.1	11	6.5
Jul	16° / 1°	4	1	0.5	11.1	6.4
Aug	16° / 2°	8	2.4	0.5	11.5	6.6
Sep	17° / 4°	12	3.8	0.3	11.9	6.7
Oct	17° / 6°	25	6.2	0.1	12.4	6.2
Nov	17° / 6°	39	9.4	0.1	12.8	5.4
Dec	16° / 7°	108	19.2	0.1	13	3.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

	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 (%)	88	87	86	85	85	85	84	83	83	83	81	81	81	80	80	79	79	78	78	78	77	77	77	76	77	76	75	75	74	74
Cloudier (%)	12	13	14	15	15	15	16	17	17	17	19	19	19	20	20	21	21	22	22	22	23	23	23	24	23	24	25	25	26	26

	Clearer (%)	Cloudier (%)
1	88	12
2	87	13
3	86	14
4	85	15
5	85	15
6	85	15
7	84	16
8	83	17
9	83	17
10	83	17
11	81	19
12	81	19
13	81	19
14	80	20
15	80	20
16	79	21
17	79	21
18	78	22
19	78	22
20	78	22
21	77	23
22	77	23
23	77	23
24	76	24
25	77	23
26	76	24
27	75	25
28	75	25
29	74	26
30	74	26

Chance of precipitation in September

Any precipitation

Selva Alegre gets around 12 mm of rain and snow over 3.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 12% and peaks near 15% 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 (%)	10	10	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	14	14	14	14	14	15	15	15

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

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September 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
Dry (%)	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	100	100	100

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

Wind in September

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

Across September, 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 September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 5:56 AM to 5:32 AM, and sunset from 5:36 PM to 5:39 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)	11.7	11.7	11.7	11.7	11.7	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.1	12.1	12.1	12.1	12.1	12.1
Sunrise (AM)	5:56	5:55	5:54	5:53	5:52	5:52	5:51	5:50	5:49	5:48	5:47	5:47	5:46	5:45	5:44	5:43	5:42	5:41	5:41	5:40	5:39	5:38	5:37	5:36	5:36	5:35	5:34	5:33	5:32	5:32
Sunset (PM)	5:36	5:36	5:36	5:36	5:37	5:37	5:37	5:37	5:37	5:37	5:37	5:37	5:37	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:38	5:39	5:39	5:39	5:39	5:39	5:39	5:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.7	5:56	5:36
2	11.7	5:55	5:36
3	11.7	5:54	5:36
4	11.7	5:53	5:36
5	11.7	5:52	5:37
6	11.8	5:52	5:37
7	11.8	5:51	5:37
8	11.8	5:50	5:37
9	11.8	5:49	5:37
10	11.8	5:48	5:37
11	11.8	5:47	5:37
12	11.8	5:47	5:37
13	11.9	5:46	5:37
14	11.9	5:45	5:38
15	11.9	5:44	5:38
16	11.9	5:43	5:38
17	11.9	5:42	5:38
18	11.9	5:41	5:38
19	12.0	5:41	5:38
20	12.0	5:40	5:38
21	12.0	5:39	5:38
22	12.0	5:38	5:38
23	12.0	5:37	5:38
24	12.0	5:36	5:39
25	12.1	5:36	5:39
26	12.1	5:35	5:39
27	12.1	5:34	5:39
28	12.1	5:33	5:39
29	12.1	5:32	5:39
30	12.1	5:32	5:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 7.36 kWh/m².

For context, solar energy here swings from a low near 5.46 kWh/m² to a high of 8.26 kWh/m² in November across the year — September's 7.36 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
Solar energy (kWh/m²)	6.9	7.0	7.0	7.0	7.0	7.1	7.1	7.1	7.2	7.2	7.2	7.3	7.3	7.3	7.3	7.4	7.4	7.4	7.5	7.5	7.5	7.6	7.6	7.6	7.6	7.7	7.7	7.7	7.8	7.8
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

	Solar energy (kWh/m²)	Level
1	6.9	Intense
2	7.0	Intense
3	7.0	Intense
4	7.0	Intense
5	7.0	Intense
6	7.1	Intense
7	7.1	Intense
8	7.1	Intense
9	7.2	Intense
10	7.2	Intense
11	7.2	Intense
12	7.3	Intense
13	7.3	Intense
14	7.3	Intense
15	7.3	Intense
16	7.4	Intense
17	7.4	Intense
18	7.4	Intense
19	7.5	Intense
20	7.5	Intense
21	7.5	Intense
22	7.6	Intense
23	7.6	Intense
24	7.6	Intense
25	7.6	Intense
26	7.7	Intense
27	7.7	Intense
28	7.7	Intense
29	7.8	Intense
30	7.8	Intense

Planning a trip in September

Hazard calendar for Selva Alegre

In seasonPeak

None of Selva Alegre's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Selva Alegre's monsoon runs December–March, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Selva Alegre?

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

6.7

Sightseeing

1st-best month of the year

1.5

Beach & pool

2nd-best month of the year

September is a reasonable time to visit Selva Alegre for sightseeing.

What to pack for Selva Alegre in September

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

In September, Selva Alegre sees daytime highs around 17°C and nights near 4°C. Pack sun protection. Worth having: a warm layer. About 4 days see rain.

sun protectiona warm layer

UV index in Selva Alegre in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Selva Alegre peaks around February 8 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 9 (very high).

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)	17	17	15	14	11	9	9	12	14	16	14	15
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	17	Extreme
Feb	17	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	9	Very high
Jul	9	Very high
Aug	12	Extreme
Sep	14	Extreme
Oct	16	Extreme
Nov	14	Extreme
Dec	15	Extreme

Location & terrain

Where is Selva Alegre?

Selva Alegre sits at 16.4°S, 71.5°W, 2,455 m above sea level, in Peru. The nearest listed city is Arequipa, 3.0 km away.

Topography around Selva Alegre

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

Within 3 km, the terrain around Selva Alegre has significant variations in elevation — a maximum elevation change of 471 m around an average of 2,490 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,849 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,158 m.

The land around Selva Alegre is covered by artificial surfaces (55%) and bare terrain (24%) within 3 km, bare terrain (38%) and shrubs (30%) within 16 km, and bare terrain (65%) and grassland (21%) within 80 km.

3 km

471 m

artificial surfaces 55%

16 km

3,849 m

bare terrain 38%

80 km

6,158 m

bare terrain 65%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← August Selva Alegre year-round climate October →Best places to visit in September

September weather nearby: Arequipa 3.0 km · Ciudad Satelite 7.0 km · Cono Norte 8.0 km · Jacobo Hunter 8.0 km · El Pedregal 71 km · Mollendo 89 km · Moquegua 111 km · San Antonio 114 km

Peru travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B / C; 220 V · 60 Hz
Prices: ≈ 51% of US; price level, 2025
GDP per capita: $9,684; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 49%; of population, 2024
Homicide rate: 8.6; per 100k, 2021
Road deaths: 13.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 519
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 Selva Alegre (-16.3706°, -71.5272°, elevation 2,455 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).

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

	Clearer (%)	Cloudier (%)
1	88	12
2	87	13
3	86	14
4	85	15
5	85	15
6	85	15
7	84	16
8	83	17
9	83	17
10	83	17
11	81	19
12	81	19
13	81	19
14	80	20
15	80	20
16	79	21
17	79	21
18	78	22
19	78	22
20	78	22
21	77	23
22	77	23
23	77	23
24	76	24
25	77	23
26	76	24
27	75	25
28	75	25
29	74	26
30	74	26

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

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

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

	Clearer (%)	Cloudier (%)
1	88	12
2	87	13
3	86	14
4	85	15
5	85	15
6	85	15
7	84	16
8	83	17
9	83	17
10	83	17
11	81	19
12	81	19
13	81	19
14	80	20
15	80	20
16	79	21
17	79	21
18	78	22
19	78	22
20	78	22
21	77	23
22	77	23
23	77	23
24	76	24
25	77	23
26	76	24
27	75	25
28	75	25
29	74	26
30	74	26

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

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

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

	Clearer (%)	Cloudier (%)
1	88	12
2	87	13
3	86	14
4	85	15
5	85	15
6	85	15
7	84	16
8	83	17
9	83	17
10	83	17
11	81	19
12	81	19
13	81	19
14	80	20
15	80	20
16	79	21
17	79	21
18	78	22
19	78	22
20	78	22
21	77	23
22	77	23
23	77	23
24	76	24
25	77	23
26	76	24
27	75	25
28	75	25
29	74	26
30	74	26

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

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