Nam Định weather in July

In July, Nam Định sees average daytime highs of 33°C and overnight lows near 28°C, with 246 mm of rain across 18.4 wet days and about 13.1 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 10% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 12 min at the start of July to 13 hours by month's end. Set against the rest of the year, July is Nam Định's 11th-clearest and 4th-windiest month. For the whole year in context, see Nam Định's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
28°
12th coldest
Rainfall
246 mm
18.4 wet days
Daylight
13 h 06 min
5:27 AM – 6:35 PM
Cloud cover
84%
11th clearest
Wind
11 km/h
4th windiest
Solar energy
5.13 kWh/m²
Travel score
2.6
out of 10

Nam Định is the former provincial capital of the former Nam Dinh province, Vietnam.

Density
9,660/km²
people per km²
Founded
1921

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical July day in Nam Định reaches about 33°C in the afternoon and slips back to 28°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, July runs on par with June and about 1°C warmer than August.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13328
23328
33328
43328
53328
63328
73328
83328
93328
103328
113328
123328
133328
143328
153328
163328
173328
183328
193328
203328
213328
223328
233328
243328
253327
263327
273327
283327
293327
303327
313227

How July really feels in Nam Định

Once humidity and wind are folded in, July averages 31 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
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Nam Định weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 15°285.510.96.6
Feb22° / 17°154.111.36.9
Mar24° / 19°366.411.97.0
Apr28° / 23°638.712.56.0
May31° / 26°19616.3133.6
Jun33° / 28°18916.413.22.6
Jul33° / 28°24618.413.12.6
Aug32° / 27°34223.612.72.6
Sep31° / 25°27720.612.13.3
Oct29° / 23°14213.611.55.1
Nov26° / 20°618.3116.9
Dec22° / 16°296.310.87.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 6% of July, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31783
41783
51882
61981
71981
81981
91981
101981
111981
121981
131783
141783
151684
161684
171684
181684
191585
201486
211486
221585
231585
241585
251486
261585
271585
281684
291684
301684
311684

Chance of precipitation in July

Any precipitation

Nam Định gets around 246 mm of rain over 18.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 60% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
154
254
354
454
554
654
754
854
954
1054
1155
1255
1355
1456
1557
1657
1758
1859
1960
2061
2162
2263
2364
2465
2566
2668
2769
2870
2971
3072
3173

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14298
15298
16298
17298
18298
19199
20199
21199
22199
23199
24199
25199
26199
27199
280100
290100
300100
310100

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 9 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
299calm
309calm
319calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 12 min at the start of July to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over July. Sunrise moves from 5:22 AM to 5:33 AM, and sunset from 6:35 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:226:35
213.25:226:35
313.25:236:36
413.25:236:36
513.25:236:36
613.25:236:36
713.25:246:36
813.25:246:36
913.25:256:36
1013.25:256:35
1113.25:256:35
1213.25:266:35
1313.25:266:35
1413.15:266:35
1513.15:276:35
1613.15:276:35
1713.15:276:35
1813.15:286:34
1913.15:286:34
2013.15:296:34
2113.15:296:34
2213.15:296:33
2313.15:306:33
2413.05:306:33
2513.05:316:32
2613.05:316:32
2713.05:316:32
2813.05:326:31
2913.05:326:31
3013.05:326:30
3113.05:336:30

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.13 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 5.27 kWh/m² in June across the year — July's 5.13 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in July

Hazard calendar for Nam Định

In seasonPeak

In July, Nam Định sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Nam Định sits in the Pacific typhoon belt; the season peaks July–October.

Nam Định's monsoon runs May–September, when most of the year's rain falls.

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

Is July a good time to visit Nam Định?

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

2.6
Sightseeing
10th-best month of the year
4.7
Beach & pool
9th-best month of the year

July is a weaker month for outdoor sightseeing in Nam Định.

What to pack for Nam Định in July

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

In July, Nam Định sees daytime highs around 33°C and nights near 28°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Nam Định in July

The nearest coast averages about 30°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 40 km away) is warmest in August at about 30°C and coldest in February near 20°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb20Refreshing
Mar21Refreshing
Apr24Refreshing
May27Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct28Tropical
Nov26Warm
Dec23Refreshing

UV index in Nam Định in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nam Định peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highVery highExtremeVery highHighJul 12UV 11Dec 16UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar9Very high
Apr7High
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep8Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Nam Định in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Nam Định is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (July, 25 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1166 µg/m³Jul 1525 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb61Unhealthy
Mar61Unhealthy
Apr51Poor
May37Poor
Jun27Moderate
Jul25Moderate
Aug27Moderate
Sep41Poor
Oct52Poor
Nov56Unhealthy
Dec66Unhealthy
Location & terrain

Where is Nam Định?

Nam Định sits at 20.4°N, 106.2°E, 5 m above sea level, in Vietnam. The nearest listed city is Thái Bình, 17 km away.

Topography around Nam Định

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

Within 3 km, the terrain around Nam Định has only modest variations in elevation — a maximum elevation change of 14 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 63 m; within 80 km, large variations in elevation — a maximum elevation change of 1,061 m.

The land around Nam Định is covered by artificial surfaces (53%) within 3 km, cropland (59%) within 16 km, and cropland (36%), water (28%) and trees (23%) within 80 km.

3 km
14 m
16 km
63 m
80 km
1,061 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
July weather nearby: Thái Bình 17 km · Hưng Yên 27 km · Ninh Binh 28 km · Phủ Lý 30 km · Lương Bằng 36 km · Bỉm Sơn 52 km · Nga Sơn 52 km · Mỹ Hào 55 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 1%

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 Nam Định (20.4339°, 106.1773°, elevation 5 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).