Climate Insights for Islay (Matarani)

Provincia de Islay, Arequipa, Peru

Hottest
February
25°C peak
Coldest
August
13°C low
Wettest
January
27mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Islay (Matarani) is warm and mild. The average annual temperature is 18°C and approximately 130mm of precipitation falls per year. January is the wettest month, receiving around 27mm of rainfall. Islay (Matarani) is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: February, March, January. The coldest months are August, July, September, when temperatures can drop to 13°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 24° Average: 21° Min: 19° Feb Max: 25° Average: 21° Min: 19° Mar Max: 25° Average: 21° Min: 18° Apr Max: 23° Average: 19° Min: 17° May Max: 22° Average: 18° Min: 15° Jun Max: 20° Average: 16° Min: 14° Jul Max: 19° Average: 16° Min: 13° Aug Max: 19° Average: 16° Min: 13° Sep Max: 20° Average: 16° Min: 13° Oct Max: 21° Average: 17° Min: 14° Nov Max: 22° Average: 18° Min: 15° Dec Max: 23° Average: 19° Min: 17°
Max
Average
Min

Islay (Matarani) sees moderate temperature variation throughout the year, ranging from 13°C to 25°C. February is the warmest month, though highs remain moderate at 25°C with a mean of 21°C. August is the coolest month, with minimum temperatures around 13°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 27mm Feb Precipitation: 24mm Mar Precipitation: 9mm Apr Precipitation: 5mm May Precipitation: 6mm Jun Precipitation: 11mm Jul Precipitation: 13mm Aug Precipitation: 8mm Sep Precipitation: 8mm Oct Precipitation: 6mm Nov Precipitation: 5mm Dec Precipitation: 9mm
Precipitation

Islay (Matarani) is a quite dry location, receiving approximately 130mm of precipitation annually, which averages out to around 11mm per month. The wettest month is January, averaging 27mm of rainfall. February and July also tend to see above-average precipitation. The driest month is April, with just 5mm. That's 22mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 2km/h Feb Wind Speed: 2km/h Mar Wind Speed: 2km/h Apr Wind Speed: 2km/h May Wind Speed: 2km/h Jun Wind Speed: 2km/h Jul Wind Speed: 2km/h Aug Wind Speed: 2km/h Sep Wind Speed: 2km/h Oct Wind Speed: 2km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

Islay (Matarani) is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

3 days until Winter

It is currently autumn in Islay (Matarani), which began on March 20, 2026. Islay (Matarani) is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 25°C, while the coldest stretch bottoms out in August near 13°C. Winter is next, beginning on June 21, 2026 — 3 days from now.

Spring

Temperatures range from 13 to 22°C. Precipitation is minimal, with only around 19mm for the entire season. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 17 to 25°C. Rainfall is relatively light, with around 60mm over the season and a monthly average of 20mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 15 to 25°C. Precipitation is minimal, with only around 20mm for the entire season. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 13 to 20°C. Precipitation is minimal, with only around 32mm for the entire season. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 21°
Feb 21°
Mar 21°
Apr 19°
May 18°
Jun 16°
Jul 16°
Aug 16°
Sep 16°
Oct 17°
Nov 18°
Dec 19°

The best time to visit Islay (Matarani) is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 11mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Islay (Matarani) based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
19 °C
24 °C
2 km/h
27 mm
0 cm
Feb
19 °C
25 °C
2 km/h
24 mm
0 cm
Mar
18 °C
25 °C
2 km/h
9 mm
0 cm
Apr
17 °C
23 °C
2 km/h
5 mm
0 cm
May
15 °C
22 °C
2 km/h
6 mm
0 cm
Jun Current
14 °C
20 °C
2 km/h
11 mm
0 cm
Jul
13 °C
19 °C
2 km/h
13 mm
0 cm
Aug
13 °C
19 °C
2 km/h
8 mm
0 cm
Sep
13 °C
20 °C
2 km/h
8 mm
0 cm
Oct
14 °C
21 °C
2 km/h
6 mm
0 cm
Nov
15 °C
22 °C
2 km/h
5 mm
0 cm
Dec
17 °C
23 °C
2 km/h
9 mm
0 cm
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