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Contents
- The climate of Sullana
- The best time to visit Sullana
- The worst time to visit Sullana
- Spring weather in Sullana
- Summer weather in Sullana
- Autumn weather in Sullana
- Winter weather in Sullana
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Sullana
Peru's Sullana region is categorized under the BWh climate classification, according to the Köppen system, indicating a subtropical desert climate. This classification, typically involved with areas close to the Equator, explains the high temperatures and scarce rainfall experienced in Sullana over the year.
Throughout the year, temperatures within this region fluctuate moderately. Highs of 32.2°C (90°F) are observable in March and they decrease gradually to reach 28.9°C (84°F) in both July and August. Conversely, thermal lows vary from 24.4°C (75.9°F) (March) to a minimum of 17.8°C (64°F) (August). It is noteworthy that relative humidity levels persist around 62% to 66% during the entire year, indicating a somewhat humid atmosphere despite the desert climate.
Variations in other weather variables also present an interesting pattern. Rainfall exhibits an extremely seasonal trend with February and March receiving around 55mm (2.17") and 54mm (2.13") respectively, and a virtually dry spell from June to October with 1mm (0.04") or no precipitation at all. Furthermore, wind speed fluctuates between 10.8km/h (6.7mph) and 16km/h (9.9mph), peaking around 15.6km/h (9.7mph) in July and tapering down to its nadir in March.
To add to this, pressure levels remain pretty consistent, approximately 1011mb to 1012mb, showing a narrow range. Sunlight duration has minor fluctuations throughout the year, lasting about 12 hours a day. These geographic and climatic factors work collectively to form Sullana's predominant and characteristically hot desert climate.
Throughout the year, temperatures within this region fluctuate moderately. Highs of 32.2°C (90°F) are observable in March and they decrease gradually to reach 28.9°C (84°F) in both July and August. Conversely, thermal lows vary from 24.4°C (75.9°F) (March) to a minimum of 17.8°C (64°F) (August). It is noteworthy that relative humidity levels persist around 62% to 66% during the entire year, indicating a somewhat humid atmosphere despite the desert climate.
Variations in other weather variables also present an interesting pattern. Rainfall exhibits an extremely seasonal trend with February and March receiving around 55mm (2.17") and 54mm (2.13") respectively, and a virtually dry spell from June to October with 1mm (0.04") or no precipitation at all. Furthermore, wind speed fluctuates between 10.8km/h (6.7mph) and 16km/h (9.9mph), peaking around 15.6km/h (9.7mph) in July and tapering down to its nadir in March.
To add to this, pressure levels remain pretty consistent, approximately 1011mb to 1012mb, showing a narrow range. Sunlight duration has minor fluctuations throughout the year, lasting about 12 hours a day. These geographic and climatic factors work collectively to form Sullana's predominant and characteristically hot desert climate.
The best time to visit Sullana
In considering the best time to visit Sullana, it can be seen that the months from May to October offer the most agreeable weather conditions for a visit. During this period, the weather is relatively mild with high temperatures ranging from 31.1°C (88°F) to 28.9°C (84°F). The heat is marked by a significantly lower rate of rainfall, translating to fewer rainy days. Furthermore, the high sunshine hours, approximately 9.5 hours to 11.3 hours per day, provide ample opportunity to engage in outdoor activities.
The worst time to visit Sullana
Given the high temperature and high rainfall, the months of February and March pose challenges for potential visitors. With a high temperature reaching up to 32.2°C (90°F) and a torrent of rainfall amounting to approximately 55mm (2.17") in February and 54mm (2.13") in March, these months are not an ideal time for tourist activities that primarily involve outdoor exploration.
Spring weather in Sullana
In Sullana, spring months from September to November are characterised by a consistent rise in temperature. The high temperature during this span ranges between 29.5°C (85.1°F) and 30.3°C (86.5°F). As for rainfall, after a dry spell in July and August, there's a gradual increase in precipitation. Yet, it is virtually insignificant with 1mm (0.04") in September, 2mm (0.08") in November and no rainfall in October.
Summer weather in Sullana
Summer in Sullana, which spans from December to February, is pronounced by hot weather conditions. High temperatures persist around 32°C (89.6°F), with rainfall reaching high levels especially in February. Nevertheless, sunshine duration remains healthy with about 8.4 hours in December and February and 12.3 hours in January.
Autumn weather in Sullana
Autumn in Sullana, taking place between March and May, brings slightly decreased temperatures. The mercury level fluctuates from 32.2°C (90°F) in March to 29.7°C (85.5°F) in May. The area also experiences reduced rainfall after a noticeable surge in summer.
Winter weather in Sullana
Unlike typical winters, Sullana's winter, ranging from June to August, features warm conditions. High temperatures marginally vary between 28.9°C (84°F) in July and August to 29.7°C (85.5°F) in June. Rainfall also stays significantly low during the winter months, with June, July, and August recording 1mm (0.04"), 1mm (0.04"), and no rainfall respectively.
Weather in January
Steadily following December's climatic pattern, January's conditions in Sullana, Peru uphold a warm and moderately humid period. The season magnifies Sullana's tropical climate with temperatures extensively reaching their peak. Weather in January »
Weather in February
Sequel to January, February too records high humidity level and increased precipitation. The city witnesses a record rainfall of 55mm (2.17") throughout the month, fostering a rise in greenery in and around the Peruvian city. One can expect a recurrent disruption in their outdoor plans as rain showers persist for close to 15 days in February. Weather in February »
Weather in March
In March, Sullana keeps up with February's rainfall pattern that is, the rates decline rather trivially to 54mm (2.13"), persisting the dampness and occasional disruptions in the city. The climbing temperatures especially during the night to 24.4°C (75.9°F) result in a warm and soothing climate, ideal for a late-night stroll around Sullana. Weather in March »
Weather in April
April is when Sullana finally takes a respite from its torrential rainfall period with precipitation dropping significantly to 19mm (0.75"). Clear skies dominate the cityscape reflected in a low 37% cloud cover, extending the city's daylight hours. Weather in April »
Weather in May
Moving into May, the previous rainy spell breaks further as rainfall amounts drop to a meagre 5mm (0.2") over approximately five days. This decrease in precipitation paves the path for bright and sunny days enhancing visibility up to a range of 10km (6.2mi). Weather in May »
Weather in June
June carries forward the decreasing trend of rainfall from May, with precipitation dipping to its lowest - 1mm (0.04") spread across a single day. The dry weather coupled with daytime temperatures dropping to 29.7°C (85.5°F) fosters outdoor activities and sightseeing around Sullana. Weather in June »
Weather in July
Sullana enters July with a continuity of June's minimalistic rainfall, maintaining the dry spell across the city. Taking cues from the dry and heated surroundings, the daytime temperatures fall slightly to 28.9°C (84°F), making it the coolest July month throughout the year. Weather in July »
Weather in August
In August, Sullana maintains its dry and sunlit spell with nil rainfall. The decreasing rainfall with each succeeding month, accompanied by a fall in the maximum temperatures to 28.9°C (84°F) provides some respite from the usual hot climate. Weather in August »
Weather in September
September in Sullana greets vibrant and sunlit days with increased sunshine hours and nil rainfall. This dry spell and a maximum temperature rising again to 29.5°C (85.1°F) affirm September as the prelude to Sullana's warm climatic conditions. Weather in September »
Weather in October
With the onset of October, Sullana transitions into a slightly cooler period with maximum and minimum temperatures reaching 30.2°C (86.4°F) and 18.8°C (65.8°F), respectively. A trivial rain shower of approximately 1mm (0.04") in the entire month marks the first fall season in six months. Weather in October »
Weather in November
In November, the Peruvian city heads towards its peak rainfall period with a slight rise in precipitation to 2mm (0.08"). The subsequent increase in humidity to 62%, along with a rise in day temperatures to 30.3°C (86.5°F), induces the pre-monsoon buzz in Sullana. Weather in November »
Weather in December
December signals the onset of Sullana's high precipitation period with rainfall edging up to 4mm (0.16"). These conditions accompanied by 30.8°C (87.4°F) day temperature and 21°C (69.8°F) night temperature provide a warm and moderately high-humidity environment, typical of a tropical climate. Weather in December »
Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain in Sullana?
In Sullana, Peru, during the entire year, the rain falls for 69 days and collects up to 158mm (6.22") of precipitation.
When is the highest UV index in Sullana?
January through May and December, with an average maximum UV index of 7, are months with the highest UV index in Sullana, Peru.
What part of the year is the hottest in Sullana?
The months of February and March bring the highest temperatures in Sullana, averaging a high of 32.2°C (90°F).
What is the rainiest month in Sullana?
February is the month with the most rainfall in Sullana, Peru. Rain falls for 15.1 days and accumulates 55mm (2.17") of precipitation.
What is the month with the least sunshine in Sullana?
February has the least sunshine of the year in Sullana, with an average of 8.1h of sunshine.
What is the least humid month in Sullana?
With an average relative humidity of 61%, April is the least humid month in Sullana, Peru.
What is the month with the shortest days in Sullana?
June has the shortest days of the year in Sullana, Peru, with an average of 11h and 48min of daylight.
When is the lowest UV index in Sullana?
The months with the lowest UV index are June through November, with an average maximum UV index of 6.
What are the coldest months in Sullana?
July and August are identified as the coldest months in Sullana, with an average high-temperature of 28.9°C (84°F).
What is the most humid month in Sullana?
July and August, with an average relative humidity of 66%, are most humid months.
What is the driest month in Sullana?
In Sullana, Peru, rain does not fall in August and September.
When does it rain in Sullana?
January through July, October through December are months with rainfall.
What month has the most sunshine in Sullana?
With an average of 11.3h of sunshine, November has the most sunshine of the year in Sullana.
When are the longest days in Sullana?
With an average of 12h and 24min of daylight, December has the longest days of the year in Sullana, Peru.
Is there Daylight Saving Time (DST) in Sullana?
Sullana does not observe Daylight Saving Time (DST). -05 timezone is used throughout the entire year.
Average temperature
Sullana, Peru
The warmest months (with the highest average high temperature) are February and March (32.2°C).
The months with the lowest average high temperature are July and August (28.9°C).
The month with the highest average low temperature is March (24.4°C).
The coldest month (with the lowest average low temperature) is August (17.8°C).
Average pressure
Sullana, Peru
- Average pressure in January:
1011.4mbar - Average pressure in February:
1010.9mbar - Average pressure in March:
1011.1mbar - Average pressure in April:
1011.5mbar - Average pressure in May:
1012mbar - Average pressure in June:
1012.4mbar
- Average pressure in July:
1012.6mbar - Average pressure in August:
1012.8mbar - Average pressure in September:
1012.7mbar - Average pressure in October:
1012.5mbar - Average pressure in November:
1012mbar - Average pressure in December:
1011.6mbar
The month with the highest atmospheric pressure is August (1012.8mbar).
The month with the lowest atmospheric pressure is February (1010.9mbar).
Average wind speed
Sullana, Peru
- Average wind speed in January:
13.9km/h - Average wind speed in February:
11.6km/h - Average wind speed in March:
10.8km/h - Average wind speed in April:
12.4km/h - Average wind speed in May:
14.4km/h - Average wind speed in June:
15.1km/h
- Average wind speed in July:
15.6km/h - Average wind speed in August:
15.7km/h - Average wind speed in September:
16km/h - Average wind speed in October:
15.9km/h - Average wind speed in November:
15.4km/h - Average wind speed in December:
15.3km/h
The windiest month (with the highest average wind speed) is September (16km/h).
The calmest month (with the lowest average wind speed) is March (10.8km/h).
Average humidity
Sullana, Peru
The months with the highest relative humidity are July and August (66%).
The month with the lowest relative humidity is April (61%).
Average rainfall
Sullana, Peru
The wettest month (with the highest rainfall) is February (55mm).
The driest months (with the least rainfall) are August and September (0mm).
Average rainfall days
Sullana, Peru
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
15.1 days - Average rainfall days in March:
16.9 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
5.2 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.1 days - Average rainfall days in September:
1.3 days - Average rainfall days in October:
1.2 days - Average rainfall days in November:
1.7 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is August (0.1 days).
Average daylight / Average sunshine
Sullana, Peru
- Average daylight in January:
12h and 2min - Average daylight in February:
12h and 2min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 0min - Average daylight in May:
11h and 5min - Average daylight in June:
11h and 5min
- Average daylight in July:
11h and 5min - Average daylight in August:
12h and 0min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 1min - Average daylight in November:
12h and 2min - Average daylight in December:
12h and 2min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in January:
8h and 2min - Average sunshine in February:
8h and 1min - Average sunshine in March:
8h and 2min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 5min - Average sunshine in October:
10h and 1min - Average sunshine in November:
11h and 2min - Average sunshine in December:
9h and 3min
The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 8h and 6min).
Average sunshine days
Sullana, Peru
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
11.6 days - Average sunshine days in March:
12 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
23.1 days - Average sunshine days in June:
27.3 days
- Average sunshine days in July:
29.4 days - Average sunshine days in August:
30.4 days - Average sunshine days in September:
28.5 days - Average sunshine days in October:
29.4 days - Average sunshine days in November:
27.7 days - Average sunshine days in December:
25.4 days
The month with the most sunshine days is August (30.4 days).
The month with the least sunshine days is February (11.6 days).
Average UV index
Sullana, Peru
The months with the highest UV index are January, February, March, April, May and December (UV index 7).
The months with the lowest UV index are June, July, August, September, October and November (UV index 6).
Average cloud cover
Sullana, Peru
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Sullana, Peru
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Sullana, Peru
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