Monthly weather averages & travel planning

Asia › 🇮🇳 India › Delhi
Updated: March 2026
May is a fair time to visit Delhi (5/10). With 13 daily sunshine hours and only 5 rain days, this month delivers genuinely reliable outdoor conditions, ranking it the sunniest month of the year in Delhi. Culture-focused travellers and those who prefer lighter crowds will find May a practical choice, with prices running lower than peak May without sacrificing all the good weather. June offers a similar profile at lower hotel rates if dates are flexible. The intense midday heat between noon and 4pm warrants strategic planning: front-load outdoor sightseeing before 11am, retreat indoors during peak heat, and resume in the late afternoon when temperatures ease. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
May sits at a particular moment in Delhi's seasonal arc. Temperatures average 40°C during the day, placing this month in the warmer half of the year, when the city operates at full summer intensity. Against the seasonal backdrop, 5 rainy days and 13 sunshine hours per day help calibrate expectations for what actually awaits on the ground.
40°C
104°F
Avg High
25°C
77°F
Avg Low
5 days
17 mm total
Rain Days
13h
per day avg
Sunshine
70%
Moderate
Humidity
The 15°C day-to-night swing is large enough to require a deliberate layering strategy, what works at noon will be noticeably cold by 10pm. Humidity averages 70%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 18 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 104°F average high, 77°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Delhi in May means dressing for 40°C days and 25°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 40°C daytime heat. Evenings drop 15°C to around 25°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region.
Local tip: Temple and religious site visits require covered shoulders and knees in most of Delhi's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.
May has no major festivals or public holidays in Delhi, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 40°C average highs and 5 rainy days
Delhi's May heat is driven by the Asian summer monsoon system, as the low-pressure cell that forms over the heated landmass draws warm, humid air from the oceans. The result is temperatures averaging 40°C with high moisture in the air. Overnight temperatures remain elevated at 25°C, as clouds and humidity prevent the earth from radiating heat away after sunset. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Delhi in May
May ranks 1st sunniest of the year in Delhi, with an average 13 daily sunshine hours. The driest months are November, December, and October. May is the hottest month (40°C avg high); January is the coolest (20°C). From here, temperatures fall 2°C into June. Compared to last month (April: 36°C high, 3 rain days), May is warmer and wetter. May is among the top three sunniest months to visit Delhi.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 20°C | 7°C | 3 | 9h | View |
| February | 23°C | 10°C | 4 | 10h | View |
| March | 29°C | 15°C | 3 | 11h | View |
| April | 36°C | 21°C | 3 | 12h | View |
| May | 40°C | 25°C | 5 | 13h | View |
| June | 38°C | 28°C | 9 | 12h | View |
| July | 34°C | 27°C | 19 | 9h | View |
| August | 32°C | 26°C | 19 | 9h | View |
| September | 32°C | 24°C | 10 | 10h | View |
| October | 32°C | 19°C | 2 | 11h | View |
| November | 27°C | 14°C | 1 | 10h | View |
| December | 22°C | 9°C | 1 | 10h | View |
January
3 rain days, 9h sun
February
4 rain days, 10h sun
March
3 rain days, 11h sun
April
3 rain days, 12h sun
May
5 rain days, 13h sun
June
9 rain days, 12h sun
July
19 rain days, 9h sun
August
19 rain days, 9h sun
September
10 rain days, 10h sun
October
2 rain days, 11h sun
November
1 rain days, 10h sun
December
1 rain days, 10h sun
Data Sources for Delhi
Climate normals represent 30-year averages (1991-2020). Individual years may vary.