4 Billion Years On

Nepal Climate – July 2026 Update

Top 5 Cities: Kathmandu, Pokhara, Lalitpur, Bharatpur, and Birgunj

August update · ~12–15 September

Summary

Nepal experienced its 3rd warmest July on record as average temperatures reached 20.38°C, standing 1.6°C above the 1961–1990 baseline. The unusual warmth coincided with intense monsoon downpours that triggered landslides and highway blockages across central and western districts, even as Pacific waters maintained a moderate El Niño forecast to peak at Very Strong in September to November. is expected to keep rainfall and flood risks elevated in the coming weeks.

This month in numbers

In July 2026, Nepal posted an average temperature of 20.38°C, making it the 3rd warmest such month since records began in 1940. This reading represents a 1.6°C anomaly above the long-term baseline, trailing only the all-time record of 20.66°C set in July 2024. Globally, land areas mirrored this excessive heat, recording their 3rd warmest July on record with an identical 1.6°C anomaly above baseline.

What changed

Looking at the broader season, the May to July period averaged 18.59°C in Nepal, which is 0.6°C above the historical norm and ranks as the 18th warmest May to July window on record. Worldwide, land temperatures over the same three-month span reached 14.34°C, marking the 2nd warmest May to July on record globally. This summer heat follows Nepal's warmest year on record in 2025, when annual temperatures reached 13.95°C as part of a long-term regional warming trend of 1.03°C.

What’s driving change?

The elevated temperatures in the Himalayan region are driven significantly by , a mechanism causing high-altitude mountain environments to heat faster than surrounding lowlands as snow cover recedes. Climate variability in the region is also influenced by , where atmospheric warming creates erratic rainfall patterns. Globally, tropical Pacific conditions remain in a moderate El Niño phase, tracked on our live monitor at ENSO, which historically aligns with warmer conditions across South Asia.

Looking ahead

Seasonal models from climate agencies indicate that the active El Niño will intensify over the coming months, with a 93% probability of reaching a Very Strong El Niño peak between September and November.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Nepal
Global
Land + Ocean
LatestAug
+1.8°C· 2nd
20.3°C
Due ~5–25 Sep
Jul
+1.8°C· 3rd
20.4°C
+1.0°C· 2nd
17.0°C
Record
20.7°C (2024)
17.0°C (2024)
May–Jul
+0.7°C· 18th
18.6°C
+1.0°C· 2nd
16.5°C
Record
19.7°C (2024)
16.5°C (2024)
2025
+1.7°C· 1st
13.9°C
+1.0°C· 3rd
15.0°C
Record
13.9°C (2025)
15.2°C (2024)
Headline: anomaly vs your selected baseline (falls back to the 1961–1990 mean for a column without enough history for it) · Small figure: the actual value · Record = value on record for the ranking above

Climate Map – Global

Source: NOAA Climate at a Glance (countries & continents) · Met Office (UK) · US states & climate regions. Anomalies are vs the 1961–1990 baseline. See methodology.

Typical Climate – Nepal

Köppen Cwb · Temperate

Nepal has a temperate climate (Köppen Cwb: Subtropical highland), with both a warm/cold cycle and a wet/dry cycle through the year. July is typically the warmest month, averaging 19.9°C, while January is the coldest at 3.9°C. Annual precipitation averages around 1542mm, concentrated mostly in the wet season.

Warmest month
Jul 20°C
Coldest month
Jan 4°C
Annual rainfall
1542mm
Wettest month
Jul 383mm

Monthly climate normals (20162025) - bar colour and height show average temperature, the shaded area shows average monthly precipitation.

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Combined TimelineNepal

Precipitation, Sunshine, Frost and Snow are converted to standard deviations from their own average so they can share an axis with Temperature.

MetricTemperature
10-Yr AverageActual Year

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Heatwave Days – Nepal

Warm Spell Duration Index (WSDI) - days in a 6+ day run above the local 90th-percentile temperature for that time of year.

Heatwave days per year2022 (Record)10-yr avg

Data: World Bank Climate Change Knowledge Portal (ERA5-derived). Refreshed roughly 1-2x/year, ~7-8 months behind present.

Year-on-Year Trends

The 4byo Climate Helix – Nepal

1940202619611990 baselineColdest (1952)20162025 meanWarmest (2025)2026 so far
2026Aug
2025
WetDryJanFebMarAprMayJunJulAugSepOctNovDecWet Start−2 daysWet End+2 days10°15°20°
Temp
14.2°C
+1.8 vs base
Precipitation
324mm
-1,313 vs base
Frost
days
ENSO
RONI 3-mo mean
Playback
8×
Mode
Presets

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Monthly TemperatureNepal

All years since 19522025 (Warmest)1952 (Coldest)2026 (Current Year)Provisional

Latest month is provisional and may be revised by the data provider in the next update cycle.

Background lines show the last 40 years (plus the record year and its opposite, wherever they fall).

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Records – Nepal

Latest data Aug 2026
Warmest year
2025
13.9°C
Coldest year
1952
11.2°C
2026 so far
#7/87
14.2°C

Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP) - Anomalies vs 1901-2000 mean

Shifting Seasons

Warm/cold + wet/dryKöppen Cwb · Temperate

Nepal has both a clear warm/cold cycle (±7.6°C) and a wet/dry cycle (36× wet:dry ratio). Both sides of the annual rhythm are shown below.

Shifting summer
24 days Longer
Warm Season
1940–1969 Baseline: 8 Apr → 23 Oct · 198 days
2016–2025 Now: 27 Mar → 4 Nov · 222 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 12 days EarlierAut 12 days Later
Shifting wet season
4 days Longer
Wet Season
1891–1920 Baseline: 15 Jun → 21 Aug · 67 days
2016–2025 Now: 13 Jun → 23 Aug · 71 days
J
F
M
A
M
J
J
A
S
O
N
D
Onset 2 days EarlierEnd 2 days Later
-9.2% annual rain
baseline yr·recent yr·ring = global temp anomaly
Wet-season onset
15 Jun13 Jun
2 days Earlier
When 25% of annual rain has fallen
Wet-season end
21 Aug23 Aug
2 days Later
When 75% of annual rain has fallen
Peak-rain month
JulJul
unchanged
Wet months: 44

Monthly precipitation climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Aug (-79 mm, -19%).

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Climate Systems

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Emissions & Energy

Explore

Explore Climate Data

Data Sources

Data Sources for Nepal

Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.

FAQs

FAQs

How is the climate in Nepal changing?

Nepal is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.

What is the climate like in Nepal?

Nepal has a temperate climate (Köppen Cwb: Subtropical highland), with both a warm/cold cycle and a wet/dry cycle through the year. July is typically the warmest month, averaging 19.9°C, while January is the coldest at 3.9°C. Annual precipitation averages around 1542mm, concentrated mostly in the wet season.

Where does the climate data for Nepal come from?

Climate data for Nepal comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.

What is the climate baseline used on this page?

Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.

Which areas does the Nepal climate data cover?

The Nepal climate profile covers Kathmandu, Pokhara, Lalitpur, Bharatpur and surrounding areas. Temperature, rainfall and emissions data for Nepal

How often is the Nepal climate update refreshed?

The Nepal climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.

What counts as a Heatwave Day on the Nepal climate page?

Heatwave Days use the Warm Spell Duration Index (WSDI) - the WMO/ETCCDI-standard heatwave measure: days that are part of a run of 6 or more consecutive days above the local 90th-percentile temperature for that calendar day. The 90th-percentile threshold varies by time of year (a hot day in January is judged differently to one in July) but is fixed to the 1961-1990 baseline for every year shown - it does not shift as the climate warms, which is why Heatwave Days trend upward over time.

Does the Nepal climate page include frost and snow data?

Yes. Frost Days (days with a minimum temperature below 0°C, World Bank CCKP) and snow water-equivalent (GPCC) are shown alongside temperature and precipitation, each measured against the 1961-1990 baseline where a like-for-like historical comparison is available.