Climate guide for Si Phan Don, Laos

Si Phan Don in July

Weather, crowds & best time to visit

How to read the score (0–10)
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July · Laos

Best time to visit Si Phan Don in July Weather, crowds & prices

Weather in Si Phan Don in July

Average temperature 28°C, 320 mm of rain, about 10 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

July score

3.8/10

Ranked #11 of 12 months

Full year for Si Phan Don
Avg temp
28°C
Rainfall
320 mm
Humidity
81%
Days with 6h+ sun
10
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

July in Si Phan Don scores 3.8/10 for nature and wildlife travel - ranked #11 of 12. Expect around 28°C, 320 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.

A tranquil archipelago of river islands on the Mekong in southern Laos, perfect during the dry season.

July in Si Phan Don: expect compromises

Days in July average 28°C (82°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Expect monsoon-level rainfall at 320 mm: only about 10 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 3.8/10 on the same scale — 11th of 12 months, versus 9.6/10 for the best month here.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.

Budget for low-season pricing, and crowds are light for this destination.

If your dates are flexible, January is materially better in Si Phan Don — 5.8 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Si Phan Don in July?
In July, Si Phan Don averages 28°C, 320 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 3.8/10.
Is July a good time to visit Si Phan Don?
July earns a 3.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Si Phan Don in July?
Expect about 320 mm of rain in July. Average humidity is 81% and there are about 10 days with 6+ hours of sunshine.

Curated in Si Phan Don

Tickets & experiences

Things to do in Si Phan Don

Si Phan Don, Laos. Live activities and tours from GetYourGuide, matched to this destination.